djvu | 9748e28cd2e2a1a06ed9a5125b085e3e72654aa7cfc9d2f8400b7355ecd0c471

Analysis

max time kernel
148s
max time network
129s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
18-06-2024 08:03

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General

Target

ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
Size

767KB
MD5

ba9f55ce820b48d6f1c78c10e7434db7
SHA1

b4e5b48f0a19ff733caa0a25d4cd3930b8cee023
SHA256

9748e28cd2e2a1a06ed9a5125b085e3e72654aa7cfc9d2f8400b7355ecd0c471
SHA512

c004261ae37b57a494a427506b19135d9b62b142fdc6cbab947d304fa31d4182b0336b37f1ffac30674aa8ed43684ebf748a27820dc8164374ad03ceff1ed5c1
SSDEEP

12288:+OSzSJpSkJFVxPlySItIuTrVbOTUs/yDGzQHYX/eeS9NE6bmInNqrXWSk13c31In:Q6pSGPT2FOTU3DjHeeeANEe9ArXk3cFQ

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://blvd.top/ydtftysdtyftysdfsdpen3/get.php

Attributes

extension
.mpaj
offline_id
RNDHQwNS07HCo9nNdWwsQzumCtR12dC9OhcDrut1
payload_url
http://blvd.top/files/penelop/updatewin1.exe
http://blvd.top/files/penelop/updatewin2.exe
http://blvd.top/files/penelop/updatewin.exe
http://blvd.top/files/penelop/3.exe
http://blvd.top/files/penelop/4.exe
http://blvd.top/files/penelop/5.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like photos, 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. You can get and look video overview decrypt tool: https://we.tl/t-9o703iSIHn Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. 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: 0219OIWojlj48

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 11 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1948-2-0x0000000001E10000-0x0000000001F2A000-memory.dmp	family_djvu
behavioral1/memory/1948-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1948-23-0x0000000000400000-0x0000000000570000-memory.dmp	family_djvu
behavioral1/memory/1948-24-0x0000000001E10000-0x0000000001F2A000-memory.dmp	family_djvu
behavioral1/memory/1948-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2112-29-0x0000000000400000-0x0000000000570000-memory.dmp	family_djvu
behavioral1/memory/2112-30-0x0000000000400000-0x0000000000570000-memory.dmp	family_djvu
behavioral1/memory/2112-45-0x0000000000400000-0x0000000000570000-memory.dmp	family_djvu
behavioral1/memory/2112-47-0x0000000000400000-0x0000000000570000-memory.dmp	family_djvu
behavioral1/memory/2112-50-0x0000000000400000-0x0000000000570000-memory.dmp	family_djvu
behavioral1/memory/1776-72-0x0000000000400000-0x0000000000570000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Executes dropped EXE 1 IoCs

Processes:

ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

pid process

1776 ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

2632 icacls.exe

pid	process
1776	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

pid	process
2632	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.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\\02934307-ef52-452e-acb8-849b1e859c9a\\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe\" --AutoStart"	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

Looks up external IP address via web service 4 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
19 api.2ip.ua
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exeba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exeba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

pid	process
1948	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
2112	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
2112	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
1776	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
1776	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exetaskeng.exe

description	pid	process	target process
PID 1948 wrote to memory of 2632	1948	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	icacls.exe
PID 1948 wrote to memory of 2632	1948	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	icacls.exe
PID 1948 wrote to memory of 2632	1948	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	icacls.exe
PID 1948 wrote to memory of 2632	1948	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	icacls.exe
PID 1948 wrote to memory of 2112	1948	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
PID 1948 wrote to memory of 2112	1948	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
PID 1948 wrote to memory of 2112	1948	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
PID 1948 wrote to memory of 2112	1948	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
PID 2268 wrote to memory of 1776	2268	taskeng.exe	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
PID 2268 wrote to memory of 1776	2268	taskeng.exe	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
PID 2268 wrote to memory of 1776	2268	taskeng.exe	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
PID 2268 wrote to memory of 1776	2268	taskeng.exe	ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1948

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\02934307-ef52-452e-acb8-849b1e859c9a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
2⤵
- Modifies file permissions
PID:2632

C:\Users\Admin\AppData\Local\Temp\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:2112

C:\Windows\system32\taskeng.exe
taskeng.exe {87C0E17D-9F19-4790-B1F0-776FD928A631} S-1-5-21-39690363-730359138-1046745555-1000:EILATWEW\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2268

C:\Users\Admin\AppData\Local\02934307-ef52-452e-acb8-849b1e859c9a\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\02934307-ef52-452e-acb8-849b1e859c9a\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe --Task
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:1776

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
4144f5b69a9be0e83b5bb1290b0b3aae

SHA1
5359e01071551821d5c5e8fe2552cb170f344b83

SHA256
f1ed473190c5136632fbb96371a40bb28b3f8459eaa9179f44098b6fed13e97a

SHA512
5f03d60e8ceee7a8f3dd99351a97703ade2f4e6681afe42278e75e58e5d2ce6f47947492ee50d510edd76c1553eca580ba228c65047f6201bd60dda7cad3fdf0

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

MD5
b29ec59ddcbd02144d8f5727fb13b2c5

SHA1
c4371af96e2f941e1ea979b480535b49d4f778d2

SHA256
e282c5e2252f1b87d9dd27bf3c31efaeba02f7c6e19599a36fdea4b9619482ad

SHA512
1339b20ea8a6bc3dc835965cbdbe01a6d521acb07d6f0da5769b53f41c6e20aaacd12c096ff575863dceb1c171ac6c27bed1746a9b65a758b6052f2780013f77

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

MD5
2b92eb8d6671081b75f8743cd3e1425f

SHA1
3604890784225441204fc40eed79e0c5225ca3f0

SHA256
39c194178e531b304402c93658644ab25dc788d20ccf4696f8646e06f9efc021

SHA512
6c5937c1cc918e6968a6c96d2569354fd4814060c945579f9237c54eb7a394fcf9a51ec1251169cc997916bcb7379430854834910ce3768de1647a98c2d12895

Download Submit
C:\Users\Admin\AppData\Local\02934307-ef52-452e-acb8-849b1e859c9a\ba9f55ce820b48d6f1c78c10e7434db7_JaffaCakes118.exe
Filesize
767KB

MD5
ba9f55ce820b48d6f1c78c10e7434db7

SHA1
b4e5b48f0a19ff733caa0a25d4cd3930b8cee023

SHA256
9748e28cd2e2a1a06ed9a5125b085e3e72654aa7cfc9d2f8400b7355ecd0c471

SHA512
c004261ae37b57a494a427506b19135d9b62b142fdc6cbab947d304fa31d4182b0336b37f1ffac30674aa8ed43684ebf748a27820dc8164374ad03ceff1ed5c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab8594.tmp
Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar3F91.tmp
Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/1776-72-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download
memory/1776-62-0x0000000000230000-0x00000000002C1000-memory.dmp

Filesize
580KB

Download
memory/1948-24-0x0000000001E10000-0x0000000001F2A000-memory.dmp

Filesize
1.1MB

Download
memory/1948-23-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download
memory/1948-0-0x0000000000350000-0x00000000003E1000-memory.dmp

Filesize
580KB

Download
memory/1948-2-0x0000000001E10000-0x0000000001F2A000-memory.dmp

Filesize
1.1MB

Download
memory/1948-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1948-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1948-25-0x0000000000350000-0x00000000003E1000-memory.dmp

Filesize
580KB

Download
memory/1948-1-0x0000000000350000-0x00000000003E1000-memory.dmp

Filesize
580KB

Download
memory/2112-27-0x0000000000340000-0x00000000003D1000-memory.dmp

Filesize
580KB

Download
memory/2112-45-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download
memory/2112-47-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download
memory/2112-50-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download
memory/2112-28-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download
memory/2112-29-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download
memory/2112-30-0x0000000000400000-0x0000000000570000-memory.dmp

Filesize
1.4MB

Download