djvu | e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da

General

Target

e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
Size

824KB
MD5

027b074862c64f786cb718da334ba19b
SHA1

8dc271f9adc11cb5d4ac7d1da1a00656aeeb0326
SHA256

e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da
SHA512

2a2af6a19e597624767fc797928767d66e7c7cf9305b447256ac481819d236a103325294dc74d91222801c5ce20215da2c19e3c31dd4d2cc09ab25cdc98ee962
SSDEEP

12288:TuGj8H2ze2Ckt2m2YjQWUvFbuu1LrJKpayANTPazV3awg5NEWo:TuG2262Ci2/pWUvFbf1Ldk0zaQ5To

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.uazq
offline_id
Jx0i3k2ogR5cKxX1evmz0Ex7TUxOUlnbh2dvnIt1
payload_url
http://sdfjhuz.com/dl/build2.exe

http://sajdfue.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/df01994dd8d37c2c33469922f8e7155a20240402134014/fd95b0 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: 0860PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 17 IoCs

resource	yara_rule
behavioral2/memory/2400-2-0x0000000004B90000-0x0000000004CAB000-memory.dmp	family_djvu
behavioral2/memory/1328-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1328-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1328-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1328-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1328-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/736-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/736-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/736-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/736-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/736-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/736-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/736-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/736-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/736-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/736-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/736-39-0x0000000000400000-0x0000000000537000-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
920	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-1-5-21-627134735-902745853-4257352768-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\2756520a-40d6-4acd-ada5-23c8887e966d\\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe\" --AutoStart"	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.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
7	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2400 set thread context of 1328	2400	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	80
PID 900 set thread context of 736	900	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.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
1328	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
1328	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
736	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
736	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 1328	2400	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	80
PID 2400 wrote to memory of 1328	2400	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	80
PID 2400 wrote to memory of 1328	2400	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	80
PID 2400 wrote to memory of 1328	2400	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	80
PID 2400 wrote to memory of 1328	2400	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	80
PID 2400 wrote to memory of 1328	2400	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	80
PID 2400 wrote to memory of 1328	2400	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	80
PID 2400 wrote to memory of 1328	2400	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	80
PID 2400 wrote to memory of 1328	2400	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	80
PID 2400 wrote to memory of 1328	2400	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	80
PID 1328 wrote to memory of 920	1328	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	81
PID 1328 wrote to memory of 920	1328	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	81
PID 1328 wrote to memory of 920	1328	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	81
PID 1328 wrote to memory of 900	1328	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	82
PID 1328 wrote to memory of 900	1328	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	82
PID 1328 wrote to memory of 900	1328	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	82
PID 900 wrote to memory of 736	900	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	85
PID 900 wrote to memory of 736	900	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	85
PID 900 wrote to memory of 736	900	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	85
PID 900 wrote to memory of 736	900	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	85
PID 900 wrote to memory of 736	900	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	85
PID 900 wrote to memory of 736	900	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	85
PID 900 wrote to memory of 736	900	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	85
PID 900 wrote to memory of 736	900	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	85
PID 900 wrote to memory of 736	900	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	85
PID 900 wrote to memory of 736	900	e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe	85

C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
"C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
  "C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1328
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\2756520a-40d6-4acd-ada5-23c8887e966d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:920
- - C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
    "C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:900
  - - C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe
      "C:\Users\Admin\AppData\Local\Temp\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:736

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

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Downloads

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

Filesize
1KB

MD5
66b9229d8e5c4a265f90090982f160e9

SHA1
90f248d1ad914909a753c75938b8cf35774a4111

SHA256
16f1125215debd65f73c0e73a6d207b912bc74c4dc4ab6caec64fc177d4b25b5

SHA512
e3f4cf6e8d30ddef23f9a9170eb22a00070f9aafaf0f10b196121b6dcf03be8d8d9734dd67e98bd0915087f048e779fca61959f2e646700d278b1e8fd72d37c1

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
ac7cdcc9067f0b1bc7a6d8d9b031a5fd

SHA1
96447d6a55480dd1e61404bc64cf4cb00fec6c39

SHA256
27baa270fabc2f3149b9282e098848140dc7f8b7e136eab1b65e6675ae5fc52a

SHA512
371f3a39ffcb4c88779397bf09714c870bfb0dddc2e8a3141d1efb3a8230d729a363fe7b35b24a2136f35b5e9d36d497597d02391084614f9ac60032bbfb805d

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

Filesize
392B

MD5
fae8f60d75042ab97c9c5ba79465a723

SHA1
b114ed63f616c6e102cd64361cf5c68b09517a23

SHA256
d3b927c811f5b7cbcaf177016f27e0328a28b85f01274d5acb43564200af5c21

SHA512
e8ac210958c186be1f46cc92a548c6bd4503cf19b669a999c737d58838c0bf24a599b35cb383f338f5312f9a1f520ee55ec82912a9d6c9a539842b1b63824210

Download Submit
C:\Users\Admin\AppData\Local\2756520a-40d6-4acd-ada5-23c8887e966d\e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da.exe

Filesize
824KB

MD5
027b074862c64f786cb718da334ba19b

SHA1
8dc271f9adc11cb5d4ac7d1da1a00656aeeb0326

SHA256
e89b943fee4335c6dd123731cf3705571e52639ea60728e5a55b7b06a5dc99da

SHA512
2a2af6a19e597624767fc797928767d66e7c7cf9305b447256ac481819d236a103325294dc74d91222801c5ce20215da2c19e3c31dd4d2cc09ab25cdc98ee962

Download Submit
memory/736-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/736-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/736-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/736-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/736-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/736-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/736-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/736-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/736-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/736-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/736-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/900-20-0x0000000004910000-0x00000000049AF000-memory.dmp

Filesize
636KB

Download
memory/1328-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1328-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1328-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1328-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1328-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2400-2-0x0000000004B90000-0x0000000004CAB000-memory.dmp

Filesize
1.1MB

Download
memory/2400-1-0x0000000004AF0000-0x0000000004B89000-memory.dmp

Filesize
612KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads