djvu | 221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63

General

Target

221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe
Size

774KB
MD5

df0e4d965201cab9382fa60aa5c6cb88
SHA1

6f80f89e89fab4245b50d29229d247a8aa1eaf99
SHA256

221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63
SHA512

1e6cdd86cc4f3f4e8099e90f156d049b85f654ed29795cf8e6f048560fd7fe76c120b5d24d2bd019ff76653e77c9180491e47fd4c68141ee5b40f0b34d497190
SSDEEP

12288:xL/PQdcVgNPyK0Flb7aKZ2CHxu47rtoELUQztzIkmEIyfZ3Q:xL/PEEbbRxH7JoE1xz1mEFZ3

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.qepi
offline_id
jgILOjDrBgyzY4JmT3B2jDSyBmDPBruKk8bKs6t1
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/665ddae3fc3cd10bbaaa4350408b196920240504141005/4cae7e 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: 0867PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 15 IoCs

resource	yara_rule
behavioral2/memory/2664-1-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2664-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2256-4-0x0000000004990000-0x0000000004AAB000-memory.dmp	family_djvu
behavioral2/memory/2664-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2664-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2664-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1900-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1900-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1900-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1900-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1900-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1900-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1900-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1900-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1900-41-0x0000000000400000-0x0000000000537000-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
4772	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-1-5-21-734199974-1358367239-436541239-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\04c76945-960c-4374-9285-b4de0b5c7e7a\\221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe\" --AutoStart"	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.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
2	api.2ip.ua
5	api.2ip.ua
1	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2256 set thread context of 2664	2256	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	81
PID 1792 set thread context of 1900	1792	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	86

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
2664	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe
2664	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe
1900	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe
1900	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2256 wrote to memory of 2664	2256	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	81
PID 2256 wrote to memory of 2664	2256	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	81
PID 2256 wrote to memory of 2664	2256	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	81
PID 2256 wrote to memory of 2664	2256	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	81
PID 2256 wrote to memory of 2664	2256	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	81
PID 2256 wrote to memory of 2664	2256	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	81
PID 2256 wrote to memory of 2664	2256	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	81
PID 2256 wrote to memory of 2664	2256	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	81
PID 2256 wrote to memory of 2664	2256	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	81
PID 2256 wrote to memory of 2664	2256	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	81
PID 2664 wrote to memory of 4772	2664	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	82
PID 2664 wrote to memory of 4772	2664	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	82
PID 2664 wrote to memory of 4772	2664	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	82
PID 2664 wrote to memory of 1792	2664	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	83
PID 2664 wrote to memory of 1792	2664	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	83
PID 2664 wrote to memory of 1792	2664	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	83
PID 1792 wrote to memory of 1900	1792	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	86
PID 1792 wrote to memory of 1900	1792	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	86
PID 1792 wrote to memory of 1900	1792	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	86
PID 1792 wrote to memory of 1900	1792	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	86
PID 1792 wrote to memory of 1900	1792	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	86
PID 1792 wrote to memory of 1900	1792	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	86
PID 1792 wrote to memory of 1900	1792	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	86
PID 1792 wrote to memory of 1900	1792	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	86
PID 1792 wrote to memory of 1900	1792	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	86
PID 1792 wrote to memory of 1900	1792	221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe	86

C:\Users\Admin\AppData\Local\Temp\221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe
"C:\Users\Admin\AppData\Local\Temp\221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2256
- C:\Users\Admin\AppData\Local\Temp\221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe
  "C:\Users\Admin\AppData\Local\Temp\221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2664
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\04c76945-960c-4374-9285-b4de0b5c7e7a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:4772
- - C:\Users\Admin\AppData\Local\Temp\221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe
    "C:\Users\Admin\AppData\Local\Temp\221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1792
  - - C:\Users\Admin\AppData\Local\Temp\221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe
      "C:\Users\Admin\AppData\Local\Temp\221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:1900

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

Loading Replay Monitor...

Downloads

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

Filesize
1KB

MD5
9ed6fed9b6e5aaa9afcba833c1b8c259

SHA1
2ed30daf7f0277a0718b3d9ce46b0658640cc2ba

SHA256
c90743b555faf3ed141c4c83e5002c4da6445c3be1ad82b01c98da2201cf6818

SHA512
a9abd9ca06479e56d08e1649b344cfd06beec24567d1053616670afd7f47757d7ab186c2cd20d21f53a901ede92b14382fc42ab21df6605d69702c0368106367

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
db065f8bef265fa3920ad30d523910c4

SHA1
3046c765b450263ac38a025413ab494d244ed844

SHA256
66662e94d6ddc99aed29315285a1c7e5f483b61147049980d5014d52d8682e65

SHA512
5ecc1fb130ea47db4ec2d2dd088fc0d6d024b0489233f21e4d809477cd1f31c893b79a333164a950837e5739a734ed447c264dc8f0ae0248559db13cba07f873

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

Filesize
392B

MD5
10fac64990fbbfb361f67776155aaaba

SHA1
51cc665e540fe24b6a802aba3030f251dcdbd300

SHA256
a22a9da013e11f94aad8d7903a67ae51a3d313411fbd060dc7b482d2c53f9469

SHA512
973e69ebb3cda7b2c59a92c04cc2f6c3e44d24441191e738d711b2d00d5a690cba6d1e77de46aa5f746d8fc5650616b52867fb562867838799380c2d2ff80a94

Download Submit
C:\Users\Admin\AppData\Local\04c76945-960c-4374-9285-b4de0b5c7e7a\221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63.exe

Filesize
774KB

MD5
df0e4d965201cab9382fa60aa5c6cb88

SHA1
6f80f89e89fab4245b50d29229d247a8aa1eaf99

SHA256
221d3ff3f3accdb860f57c6e33da6a06ee38728a09855410c3e14df233053d63

SHA512
1e6cdd86cc4f3f4e8099e90f156d049b85f654ed29795cf8e6f048560fd7fe76c120b5d24d2bd019ff76653e77c9180491e47fd4c68141ee5b40f0b34d497190

Download Submit
memory/1900-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1900-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1900-41-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1900-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1900-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1900-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1900-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1900-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1900-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2256-4-0x0000000004990000-0x0000000004AAB000-memory.dmp

Filesize
1.1MB

Download
memory/2256-2-0x0000000003020000-0x00000000030BB000-memory.dmp

Filesize
620KB

Download
memory/2664-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2664-1-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2664-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2664-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2664-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads