djvu | ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35

General

Target

ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
Size

710KB
MD5

3b8a963e6b19ad273243a1a31c8daca5
SHA1

a1e84e3b6d68892d95427fb0d2602982b0ed3763
SHA256

ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35
SHA512

c7560121fa534a6945eca35a395e57683157ce2942e9bfebc69bad16013c2c864e3bf2b8f7b39a6dbdfa4a00d6d63cefbec785b6cdaa844123c97b44999f6561
SSDEEP

12288:uZFvwaeEjEzNrkoB7l2sBag8RObTEJtV8iHBB3d6cGdAQ9GWmJK4nVDq8Xw7K5qg:uZFYnEjGNwoB7fdzEJt2iHBBMRdLEJKU

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.vehu
offline_id
EGfa5svnSGFJka7LZBQoqff0QtO1IpTauoDvGvt1
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/33b490a613f49fa190924f199d2c079e20240512191214/caaf73 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: 0872PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 13 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2240-5-0x0000000002D10000-0x0000000002E2B000-memory.dmp	family_djvu
behavioral1/memory/1500-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1500-7-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1500-8-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1500-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2548-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2548-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2548-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2548-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2548-51-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2548-52-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2548-49-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2548-53-0x0000000000400000-0x0000000000537000-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

Processes:

icacls.exe

pid process

2772 icacls.exe

pid	process
2772	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ccc0a912-8396-4242-b557-ac3f10805189\\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe\" --AutoStart"	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.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

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

Suspicious use of SetThreadContext 2 IoCs

Processes:

ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exeed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

description	pid	process	target process
PID 2240 set thread context of 1500	2240	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2644 set thread context of 2548	2644	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exeed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

pid	process
1500	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
2548	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
2548	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exeed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exeed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
"C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
  "C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1500
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\ccc0a912-8396-4242-b557-ac3f10805189" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:2772
- - C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
    "C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2644
  - - C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
      "C:\Users\Admin\AppData\Local\Temp\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:2548

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
6728aea2631b86a76c237508d8ba9b55

SHA1
7a670f95cac088313f7558869162fe01c6dc0ec9

SHA256
e1dd7380c6df33cd5702b032e0e359029d3ef7630f06ceb42cfdc154fd0baf7b

SHA512
533080cd1ec40b8530cad5c9914e0a5156d225f7392283ed2607eda4f1db4a6930002274060ed9130a6f634222c2e15818e16a50579cfe7f5274d028d31212f5

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
a8c4af226b9354d7149e25d0f49dfa39

SHA1
f8c3244619c3eda04ebafa9f1de0f5928efcd2e1

SHA256
b5e86f3aca8ed7485886d50e84af4f6f996ba88d82507a818ce70aeea48b2a86

SHA512
aabdea5b3c1f5c5d448575930e1b3948905c44f24878f31ceaef1a16f0fb78f45303f89ae24331649e402a608e8d7e3a25257e4bc3423d496909c338524e3d3d

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

Filesize
344B

MD5
ba5f9dea83766b3d6e6afda52a4bbf92

SHA1
3b97eb7193c07951767c00ece60a158c88b3dc6e

SHA256
be582b666e7b16416b28569675129e2682f2f616f516b29438a70885d651a5f7

SHA512
003a4a6c51f6222945f0c8898a6f2a525a3c0b5a3ec5ed4a99734375f3dc18a79dedf1af70347bc5c35f98fb3d7bac5f56606029ddb4e84e0b212b79d9c77542

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

Filesize
392B

MD5
108b1a2b106f74fce056be49d50060ae

SHA1
2f870afeecacbf1e055c0fa210b86d37fb0df9ba

SHA256
5c60d9070c1cb56fdcb68d50884bc826f62862eb1d19e9c6a74975e6355c9f20

SHA512
20fc65dacf68bea855d610cfc6310c09eb0f38f2e10c0be12c1731c032db99e85c98e02e684b8c7a0b86b19243ca0111f7dc81ac42c9a968e16d2ee099f64bad

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab94E0.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\ccc0a912-8396-4242-b557-ac3f10805189\ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

Filesize
710KB

MD5
3b8a963e6b19ad273243a1a31c8daca5

SHA1
a1e84e3b6d68892d95427fb0d2602982b0ed3763

SHA256
ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35

SHA512
c7560121fa534a6945eca35a395e57683157ce2942e9bfebc69bad16013c2c864e3bf2b8f7b39a6dbdfa4a00d6d63cefbec785b6cdaa844123c97b44999f6561

Download Submit
memory/1500-8-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1500-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1500-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1500-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1500-7-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2240-0-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2240-5-0x0000000002D10000-0x0000000002E2B000-memory.dmp

Filesize
1.1MB

Download
memory/2240-6-0x0000000000220000-0x00000000002B2000-memory.dmp

Filesize
584KB

Download
memory/2548-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2548-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2548-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2548-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2548-51-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2548-52-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2548-49-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2548-53-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2644-28-0x0000000000330000-0x00000000003C2000-memory.dmp

Filesize
584KB

Download

description	pid	process	target process
PID 2240 wrote to memory of 1500	2240	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2240 wrote to memory of 1500	2240	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2240 wrote to memory of 1500	2240	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2240 wrote to memory of 1500	2240	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2240 wrote to memory of 1500	2240	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2240 wrote to memory of 1500	2240	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2240 wrote to memory of 1500	2240	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2240 wrote to memory of 1500	2240	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2240 wrote to memory of 1500	2240	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2240 wrote to memory of 1500	2240	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2240 wrote to memory of 1500	2240	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1500 wrote to memory of 2772	1500	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	icacls.exe
PID 1500 wrote to memory of 2772	1500	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	icacls.exe
PID 1500 wrote to memory of 2772	1500	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	icacls.exe
PID 1500 wrote to memory of 2772	1500	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	icacls.exe
PID 1500 wrote to memory of 2644	1500	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1500 wrote to memory of 2644	1500	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1500 wrote to memory of 2644	1500	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 1500 wrote to memory of 2644	1500	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2644 wrote to memory of 2548	2644	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2644 wrote to memory of 2548	2644	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2644 wrote to memory of 2548	2644	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2644 wrote to memory of 2548	2644	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2644 wrote to memory of 2548	2644	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2644 wrote to memory of 2548	2644	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2644 wrote to memory of 2548	2644	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2644 wrote to memory of 2548	2644	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2644 wrote to memory of 2548	2644	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2644 wrote to memory of 2548	2644	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe
PID 2644 wrote to memory of 2548	2644	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe	ed2fd71789f08260d4fee1685ef35e0b1090e4b4b3667851a021c99364a86b35.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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