djvu | 10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012

General

Target

10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe
Size

806KB
MD5

501c7618c9c78150ad884c67d1bd044f
SHA1

b3c9b9c8af461d44f826d961a6e7b8c162542776
SHA256

10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012
SHA512

b55b81c6a982dfe90d8e75e3364982ea36f0e770d7a050951ce02c3bb00207538bb7e8e8b10dd614f58d6d5c7171dcac892d8eb7b28056d22a80c9660e89d261
SSDEEP

12288:WHdjBAKLmBS9B5hDstmvxDeTYXMM6+jHJCUBc9c6Eajx4o6atnwU:+LmM9PhDPovM6cMUBcfEaVd6mnwU

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.bgzq
offline_id
Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1
payload_url
http://sdfjhuz.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/54cdfd152fe98eedb628a1f4ddb7076420240421150208/403a27 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: 0864PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/3880-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3880-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3880-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4984-3-0x0000000003860000-0x000000000397B000-memory.dmp	family_djvu
behavioral2/memory/3880-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3880-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1176-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1176-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1176-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4112-21-0x0000000001E10000-0x0000000001EA7000-memory.dmp	family_djvu
behavioral2/memory/1176-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1176-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1176-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1176-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1176-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1176-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1176-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1176-40-0x0000000000400000-0x0000000000537000-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

pid	Process
3144	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1696768468-2170909707-4198977321-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\40da5ee6-78f8-4eb0-8bf2-5fb088b27eeb\\10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe\" --AutoStart"	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.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.

flow	ioc
1	api.2ip.ua
2	api.2ip.ua
6	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4984 set thread context of 3880	4984	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	79
PID 4112 set thread context of 1176	4112	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	85

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3880	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe
3880	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe
1176	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe
1176	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4984 wrote to memory of 3880	4984	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	79
PID 4984 wrote to memory of 3880	4984	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	79
PID 4984 wrote to memory of 3880	4984	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	79
PID 4984 wrote to memory of 3880	4984	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	79
PID 4984 wrote to memory of 3880	4984	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	79
PID 4984 wrote to memory of 3880	4984	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	79
PID 4984 wrote to memory of 3880	4984	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	79
PID 4984 wrote to memory of 3880	4984	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	79
PID 4984 wrote to memory of 3880	4984	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	79
PID 4984 wrote to memory of 3880	4984	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	79
PID 3880 wrote to memory of 3144	3880	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	81
PID 3880 wrote to memory of 3144	3880	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	81
PID 3880 wrote to memory of 3144	3880	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	81
PID 3880 wrote to memory of 4112	3880	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	82
PID 3880 wrote to memory of 4112	3880	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	82
PID 3880 wrote to memory of 4112	3880	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	82
PID 4112 wrote to memory of 1176	4112	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	85
PID 4112 wrote to memory of 1176	4112	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	85
PID 4112 wrote to memory of 1176	4112	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	85
PID 4112 wrote to memory of 1176	4112	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	85
PID 4112 wrote to memory of 1176	4112	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	85
PID 4112 wrote to memory of 1176	4112	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	85
PID 4112 wrote to memory of 1176	4112	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	85
PID 4112 wrote to memory of 1176	4112	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	85
PID 4112 wrote to memory of 1176	4112	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	85
PID 4112 wrote to memory of 1176	4112	10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe	85

C:\Users\Admin\AppData\Local\Temp\10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe
"C:\Users\Admin\AppData\Local\Temp\10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4984
- C:\Users\Admin\AppData\Local\Temp\10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe
  "C:\Users\Admin\AppData\Local\Temp\10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3880
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\40da5ee6-78f8-4eb0-8bf2-5fb088b27eeb" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:3144
- - C:\Users\Admin\AppData\Local\Temp\10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe
    "C:\Users\Admin\AppData\Local\Temp\10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4112
  - - C:\Users\Admin\AppData\Local\Temp\10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe
      "C:\Users\Admin\AppData\Local\Temp\10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:1176

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Filesize
1KB

MD5
44d87d695ae8e5bc46e021fe5c69c3b1

SHA1
f3721082b90536bc145ce40900ffa0a8f439ed3c

SHA256
3fdf46e976b3ec1dbd30c0ba73de6b051b2d0c32c43e1e9b5db29af05d1a0165

SHA512
d615aad7d482cc27e18dfaeb2f67747919a19818e5fb71a73f2e078afa7cf943e31bf3051d5d577f4b4415f1ad2a122e5da97a5969ca32bbd89d826e9c4f94cb

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
724B

MD5
8202a1cd02e7d69597995cabbe881a12

SHA1
8858d9d934b7aa9330ee73de6c476acf19929ff6

SHA256
58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

SHA512
97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

Filesize
410B

MD5
0e0ba6047c0fd1c7eb2a486d4585c249

SHA1
1b5d4c49a7faa4b4a89ba39c11a2e1c67eeca2b8

SHA256
1173b20d30ac9aa79629f801c785ab6f12ddd5c7de4048ca7613ca54244e42a6

SHA512
e89becac62cacd5ceb86a8347428178edd4c5b8cb5dbdc3223e8b0b5f3d7268c597e875c0bb5025d38521fe449f63ec366e85f6f2d77999094986c042f9259b6

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

Filesize
392B

MD5
9554c0b4befeb5d7320d29339a006e3b

SHA1
016cd752ccb6be6f00f9caf77964c03e6c5c1172

SHA256
1338988a7b6eca7959e06bcad86b0833bc879b5e376c2ad8ac9984c5663667f3

SHA512
9d0c86a7ce28d0535ec69db71a3237f63069f3b43d525840c443d63de3a49cf8a55c98f144a799cb39c151c1e4811a8223e3f91313384fac6d268bfee1421db4

Download Submit
C:\Users\Admin\AppData\Local\40da5ee6-78f8-4eb0-8bf2-5fb088b27eeb\10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012.exe

Filesize
806KB

MD5
501c7618c9c78150ad884c67d1bd044f

SHA1
b3c9b9c8af461d44f826d961a6e7b8c162542776

SHA256
10cce5006fb615425582562cfda1fba961f748adebfac272ec6641d9ff781012

SHA512
b55b81c6a982dfe90d8e75e3364982ea36f0e770d7a050951ce02c3bb00207538bb7e8e8b10dd614f58d6d5c7171dcac892d8eb7b28056d22a80c9660e89d261

Download Submit
memory/1176-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1176-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1176-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1176-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1176-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1176-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1176-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1176-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1176-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1176-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1176-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3880-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3880-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3880-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3880-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3880-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4112-21-0x0000000001E10000-0x0000000001EA7000-memory.dmp

Filesize
604KB

Download
memory/4984-1-0x0000000001E20000-0x0000000001EB6000-memory.dmp

Filesize
600KB

Download
memory/4984-3-0x0000000003860000-0x000000000397B000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads