djvu | cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-06-2024 18:58

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General

Target

cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe
Size

1.1MB
MD5

5230bc2f8f129c1cdcaa87821ef38b6d
SHA1

94c4e81a6d6ed0bc98ed7448cf60c3d2142ef32e
SHA256

cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e
SHA512

817b0ce33b9c4f1f944048f10226295664636ddce01190041c7660652ab054b6fb43a940c4d39ee06ac7ba0dc57b47ba9e0e757aa83dce1c07ab38afed8d1663
SSDEEP

24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8WWQHUq7:F0dwAYZt6C31WeTVRPOhW7Uq7

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

http://cajgtus.com/test1/get.php

Attributes

extension
.watz
offline_id
Lc3VTezPWbMhuVAQFzJUdeA68PwI7UDpc5aKHYt1
payload_url
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: 0874PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 1 IoCs

Processes:

resource yara_rule

C:\Users\Admin\AppData\Local\3f761461-ef66-47ff-9dd5-f5f0eaf366f6\cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe 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

2144 icacls.exe

resource	yara_rule
C:\Users\Admin\AppData\Local\3f761461-ef66-47ff-9dd5-f5f0eaf366f6\cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe	family_djvu

pid	process
2144	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3f761461-ef66-47ff-9dd5-f5f0eaf366f6\\cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe\" --AutoStart"	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.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
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

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.execbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe

pid	process
2512	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe
2576	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe
2576	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe

description	pid	process	target process
PID 2512 wrote to memory of 2144	2512	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe	icacls.exe
PID 2512 wrote to memory of 2144	2512	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe	icacls.exe
PID 2512 wrote to memory of 2144	2512	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe	icacls.exe
PID 2512 wrote to memory of 2144	2512	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe	icacls.exe
PID 2512 wrote to memory of 2576	2512	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe
PID 2512 wrote to memory of 2576	2512	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe
PID 2512 wrote to memory of 2576	2512	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe
PID 2512 wrote to memory of 2576	2512	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe	cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe

C:\Users\Admin\AppData\Local\Temp\cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe
"C:\Users\Admin\AppData\Local\Temp\cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2512

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\3f761461-ef66-47ff-9dd5-f5f0eaf366f6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
2⤵
- Modifies file permissions
PID:2144

C:\Users\Admin\AppData\Local\Temp\cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe
"C:\Users\Admin\AppData\Local\Temp\cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe" --Admin IsNotAutoStart IsNotTask
2⤵
- Suspicious behavior: EnumeratesProcesses
PID:2576

Network

MITRE ATT&CK Matrix ATT&CK v13

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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
3d2de1d7eede3172681fabe57d77eba2

SHA1
05249dc6c5ce5765343aa75b0ea53c264ea950a1

SHA256
d98a5a3bfd74c3b702e2d3a2920d2a16e4ece97604045e2a319af31e644645d9

SHA512
b39200b5ed4437c07e86719044f8f89ca485956b6d55cd94126ccd261867c6f0478473b2764838f9a828644a6276960a5491b802c0170a13c3df1587d47a8c8d

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
4aef8b03a2a391cb9f9947d22949fb11

SHA1
aaedcec50eb1b6eaea9410a5f0ab0a160cd12486

SHA256
4b99f8e2841dfe578ce26c91afa7b415778ecd4c65c4ac08be12f3424dd0f670

SHA512
fa0e29acb09dac41c6e9c158b0fd2dbc8e06cb4fb628cd99e22eb8419913efb6114402904e8534474fd0eb30603ea5e4cb93bb411396c5a11b3e067a9a8a80c6

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

MD5
51c3fc4b6fbacc76fa8a10210853b3b1

SHA1
38eee52f8625a3efd4f1903e0bb79551471720e4

SHA256
26f9310e96bd3a4931feaec01ebfd33988607a363719ec70b5e7be63e1c41af0

SHA512
8a349b2fbb98158b2bc0dd1f8b9b0388fb7797ba4a0599d4b81a2ee374fcfadda0194bc957900f355a7ae5c872f583666f3718663861ab01a12b080a464a14ac

Download Submit
C:\Users\Admin\AppData\Local\3f761461-ef66-47ff-9dd5-f5f0eaf366f6\cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e.exe
Filesize
1.1MB

MD5
5230bc2f8f129c1cdcaa87821ef38b6d

SHA1
94c4e81a6d6ed0bc98ed7448cf60c3d2142ef32e

SHA256
cbeb7eeb2ba0e370efa87676217c68f0de0067a465d4d0b422d78ddb3168ec1e

SHA512
817b0ce33b9c4f1f944048f10226295664636ddce01190041c7660652ab054b6fb43a940c4d39ee06ac7ba0dc57b47ba9e0e757aa83dce1c07ab38afed8d1663

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab2137.tmp
Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit