djvu | d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee

Analysis

max time kernel
148s
max time network
122s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
02-07-2024 02:06

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General

Target

d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
Size

806KB
MD5

88932ab33c38072946abc06b426d33b8
SHA1

accc6e0ba8e1e7250e2634a1f0e7f06be7f4beb2
SHA256

d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee
SHA512

266beae33826041ee77d36f57b41ec4ffe9849faa6b40c4446e531685e30c317c3b282e4079b674a7f37ee79dafe92c41e5b0104e210703f4ca69f7013c9e4d7
SSDEEP

12288:qIowhzaoWcGawk7yVe+H1JU7VuzpzS3oxAiXZcmQGLu5t15KBM0JiY3u3SZtr9XW:vhzL5MkmQ+H/2KFXVotzeM03aSpyr

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://cajgtus.com/test2/get.php

Attributes

extension
.waqa
offline_id
Lc3VTezPWbMhuVAQFzJUdeA68PwI7UDpc5aKHYt1
payload_url
http://defgyma.com/dl/build2.exe
http://cajgtus.com/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/abe121434ad837dd5bdd03878a14485820240531135509/34284d Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0875PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 13 IoCs

Processes:

resource	yara_rule
behavioral1/memory/3020-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2964-5-0x0000000003D10000-0x0000000003E2B000-memory.dmp	family_djvu
behavioral1/memory/3020-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3020-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3020-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2516-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2516-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2516-50-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2516-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2516-56-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2516-54-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2516-57-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2516-58-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

2760 icacls.exe

pid	process
2760	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3ac2393d-c9ad-4c3a-a35f-10fc5c28c367\\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe\" --AutoStart"	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

3 api.2ip.ua
4 api.2ip.ua
9 api.2ip.ua

flow	ioc
3	api.2ip.ua
4	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exed47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

description	pid	process	target process
PID 2964 set thread context of 3020	2964	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2884 set thread context of 2516	2884	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exed47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

pid	process
3020	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
2516	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
2516	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exed47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exed47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe

C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
"C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2964

C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
"C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3020

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\3ac2393d-c9ad-4c3a-a35f-10fc5c28c367" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:2760

C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
"C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2884

C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
"C:\Users\Admin\AppData\Local\Temp\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:2516

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize
1KB

MD5
2365869258df7a66a2121b802ca4afd9

SHA1
73acc30a2edeb9d6830de559bb8a74f35168135d

SHA256
d6b1932822bbd72a8e78c771717d992142348f67d625a42393719fefbe59b0ed

SHA512
795004bab536e128dbd81c188976d37c7b650efbfa5a80374df4c65a1049c27658f4620b7605583928eb167fcb69b4c99e4c8730c507b824a7bde9c7fb0e21f4

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
Filesize
436B

MD5
1bfe0a81db078ea084ff82fe545176fe

SHA1
50b116f578bd272922fa8eae94f7b02fd3b88384

SHA256
5ba8817f13eee00e75158bad93076ab474a068c6b52686579e0f728fda68499f

SHA512
37c582f3f09f8d80529608c09041295d1644bcc9de6fb8c4669b05339b0dd870f9525abc5eed53ad06a94b51441275504bc943c336c5beb63b53460ba836ca8d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize
174B

MD5
89b50d22cf48335a61c6021681cfaf58

SHA1
f82d20823be29699beb2598195d2880db7d5c7a2

SHA256
0d9f7cfa78963fbff344f98bddd414b580ec240dc3a59bfdc2019609251a1858

SHA512
d940770e116a079f8cee4bea6a4504c6683f2a48253584e7893631ab2ed3bf40ea2d60eab08516373c0d4c0c75b9991d0a295117d063235d3c78d38d71b52123

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
342B

MD5
94c8fb15dad91324e7ba2cd978bd45c3

SHA1
37a6b4c8690f660e593eb916efc81529f8a65cda

SHA256
197a91effbd00c47459d258f918a5a81a1d71472d66b12661cf8d6386b3524aa

SHA512
72a44b6f7def7be1537ce5f0ec62dcbfc161479194043529861e9dac10c72771fb81110459ff836e7fd217d30ef7fc9e187a4161d348bc005a3126f5438386de

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize
170B

MD5
9848840011c16e717ccb1ed3df49da7a

SHA1
036ea756e44de858fe4539daa62d65d54285f4b6

SHA256
1d568f31d34207c1bb8af0d9aea28acbb823a0856be0f4b682b689f876cf774a

SHA512
a0e2629679e3fab0388cbddd58451ee58a291c3c6b6b9def2bc256647a2d2b5884cd11518e94117469ae93c79751ac5da675bff148f4f87ce2835b921bd5243e

Download Submit
C:\Users\Admin\AppData\Local\3ac2393d-c9ad-4c3a-a35f-10fc5c28c367\d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
Filesize
806KB

MD5
88932ab33c38072946abc06b426d33b8

SHA1
accc6e0ba8e1e7250e2634a1f0e7f06be7f4beb2

SHA256
d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee

SHA512
266beae33826041ee77d36f57b41ec4ffe9849faa6b40c4446e531685e30c317c3b282e4079b674a7f37ee79dafe92c41e5b0104e210703f4ca69f7013c9e4d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab8AE1.tmp
Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2516-50-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2516-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2516-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2516-58-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2516-57-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2516-54-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2516-56-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2516-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2884-31-0x00000000002D0000-0x0000000000361000-memory.dmp

Filesize
580KB

Download
memory/2964-5-0x0000000003D10000-0x0000000003E2B000-memory.dmp

Filesize
1.1MB

Download
memory/2964-6-0x0000000003B80000-0x0000000003C11000-memory.dmp

Filesize
580KB

Download
memory/2964-0-0x0000000003B80000-0x0000000003C11000-memory.dmp

Filesize
580KB

Download
memory/3020-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3020-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3020-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3020-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3020-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 2964 wrote to memory of 3020	2964	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2964 wrote to memory of 3020	2964	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2964 wrote to memory of 3020	2964	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2964 wrote to memory of 3020	2964	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2964 wrote to memory of 3020	2964	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2964 wrote to memory of 3020	2964	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2964 wrote to memory of 3020	2964	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2964 wrote to memory of 3020	2964	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2964 wrote to memory of 3020	2964	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2964 wrote to memory of 3020	2964	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2964 wrote to memory of 3020	2964	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 3020 wrote to memory of 2760	3020	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	icacls.exe
PID 3020 wrote to memory of 2760	3020	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	icacls.exe
PID 3020 wrote to memory of 2760	3020	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	icacls.exe
PID 3020 wrote to memory of 2760	3020	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	icacls.exe
PID 3020 wrote to memory of 2884	3020	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 3020 wrote to memory of 2884	3020	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 3020 wrote to memory of 2884	3020	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 3020 wrote to memory of 2884	3020	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2884 wrote to memory of 2516	2884	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2884 wrote to memory of 2516	2884	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2884 wrote to memory of 2516	2884	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2884 wrote to memory of 2516	2884	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2884 wrote to memory of 2516	2884	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2884 wrote to memory of 2516	2884	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2884 wrote to memory of 2516	2884	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2884 wrote to memory of 2516	2884	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2884 wrote to memory of 2516	2884	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2884 wrote to memory of 2516	2884	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe
PID 2884 wrote to memory of 2516	2884	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe	d47e05b0ad27c651fb9cf73444e1f6a26514acb16998e92fca8be115ae6a2dee.exe