djvu | bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c

General

Target

bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe
Size

822KB
MD5

e86ad7ca0ff5ce39fd6470dbccb072b6
SHA1

e93125be418453badb1423b876591eb8561ca0b2
SHA256

bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c
SHA512

484a0fcc359db0d94c0e519ec4beeafdda600b17a097c9416178305714eb557e4fd4750780973969ab3a7b54add6d9a8742bdea965324bb17d28ee5eed7a9453
SSDEEP

12288:5tlp5vUjhnvTFqAEmQ4sNnZeQQ9lsX4Fx6yJ9jIIKQJ0Pv7M5c:5vvARTIAErsQGlsX4v6S9hJ037

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 17 IoCs

resource	yara_rule
behavioral1/memory/4860-2-0x0000000003780000-0x000000000389B000-memory.dmp	family_djvu
behavioral1/memory/2544-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2544-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2544-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2544-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2544-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2696-40-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1028	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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\70ee166d-0ee5-4f66-916b-c6958a91e131\\bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe\" --AutoStart"	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.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
4	api.2ip.ua
17	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4860 set thread context of 2544	4860	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	90
PID 4236 set thread context of 2696	4236	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	94

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
2544	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe
2544	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe
2696	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe
2696	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 2544	4860	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	90
PID 4860 wrote to memory of 2544	4860	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	90
PID 4860 wrote to memory of 2544	4860	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	90
PID 4860 wrote to memory of 2544	4860	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	90
PID 4860 wrote to memory of 2544	4860	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	90
PID 4860 wrote to memory of 2544	4860	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	90
PID 4860 wrote to memory of 2544	4860	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	90
PID 4860 wrote to memory of 2544	4860	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	90
PID 4860 wrote to memory of 2544	4860	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	90
PID 4860 wrote to memory of 2544	4860	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	90
PID 2544 wrote to memory of 1028	2544	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	91
PID 2544 wrote to memory of 1028	2544	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	91
PID 2544 wrote to memory of 1028	2544	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	91
PID 2544 wrote to memory of 4236	2544	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	92
PID 2544 wrote to memory of 4236	2544	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	92
PID 2544 wrote to memory of 4236	2544	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	92
PID 4236 wrote to memory of 2696	4236	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	94
PID 4236 wrote to memory of 2696	4236	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	94
PID 4236 wrote to memory of 2696	4236	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	94
PID 4236 wrote to memory of 2696	4236	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	94
PID 4236 wrote to memory of 2696	4236	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	94
PID 4236 wrote to memory of 2696	4236	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	94
PID 4236 wrote to memory of 2696	4236	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	94
PID 4236 wrote to memory of 2696	4236	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	94
PID 4236 wrote to memory of 2696	4236	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	94
PID 4236 wrote to memory of 2696	4236	bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe	94

C:\Users\Admin\AppData\Local\Temp\bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe
"C:\Users\Admin\AppData\Local\Temp\bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Users\Admin\AppData\Local\Temp\bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe
  "C:\Users\Admin\AppData\Local\Temp\bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2544
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\70ee166d-0ee5-4f66-916b-c6958a91e131" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:1028
- - C:\Users\Admin\AppData\Local\Temp\bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe
    "C:\Users\Admin\AppData\Local\Temp\bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4236
  - - C:\Users\Admin\AppData\Local\Temp\bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe
      "C:\Users\Admin\AppData\Local\Temp\bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:2696

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1416 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
1⤵
PID:4340

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
1KB

MD5
fb03526b897d572b399f3cba89305c9d

SHA1
8af3cc1409538d35897494cebe129fbd25de3bdb

SHA256
129164308e702fdc66b08a3e37443c3538cb38d3f8a9ec9f2fc242809eb2f745

SHA512
a91a001a7d0ef541fb2ee9e95a441a651a5555a9b2575872aaa5fe376fb80c60fbc67183a34d24291d1b255d6a216455e93c05b1533a2c235bea40d947e96c09

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
e5556b92f626d1b19d25fcf8c7d91d65

SHA1
b07c3abecb1baafa8dda735624dbb05753e96608

SHA256
7fbf7197cd8c65f2c88fdce8dfdffaad26e601e1a50c4b5b8f6b1c86371e7578

SHA512
336eb08315c6f6119729aec695c77800ad3d92293ad684957f6f6ff63fbb1615618dfa6c524d30b024b02eeab2dfd7e696eb6ebab80f9479aefd2e2e758acad7

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

Filesize
392B

MD5
18360fb7d0d80c9d0ea03128c79a0612

SHA1
a3c85ce48b83a795857b4bd032f883be8abd9ffe

SHA256
c7df7b0e16bb9a924d06fd81286534803089ee98df41875ed873b7093e646f6a

SHA512
b68e2a4acaab0d060fa9bba7863b9efadced4dfbb893da4d8b88215083312cf40e2a84f6722223a6d993e3373d2e49c40952b6d5d5954474887843926809ef12

Download Submit
C:\Users\Admin\AppData\Local\70ee166d-0ee5-4f66-916b-c6958a91e131\bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c.exe

Filesize
822KB

MD5
e86ad7ca0ff5ce39fd6470dbccb072b6

SHA1
e93125be418453badb1423b876591eb8561ca0b2

SHA256
bd6ff6d148314495d69e59bb1d9d94bca1f8bda279a801d2f8ed8c9b3d3abd8c

SHA512
484a0fcc359db0d94c0e519ec4beeafdda600b17a097c9416178305714eb557e4fd4750780973969ab3a7b54add6d9a8742bdea965324bb17d28ee5eed7a9453

Download Submit
memory/2544-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2544-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2544-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2544-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2544-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2696-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4236-33-0x0000000000400000-0x0000000001A98000-memory.dmp

Filesize
22.6MB

Download
memory/4236-23-0x0000000000400000-0x0000000001A98000-memory.dmp

Filesize
22.6MB

Download
memory/4860-1-0x00000000036E0000-0x000000000377B000-memory.dmp

Filesize
620KB

Download
memory/4860-2-0x0000000003780000-0x000000000389B000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads