djvu | 200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64

General

Target

200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
Size

780KB
MD5

4b2fb93459b4e03686148d0a1d3c1f00
SHA1

b16c9e43f7389ba51e1423f676cc61d9ec9d4354
SHA256

200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64
SHA512

31caad1014245fb375ecaefa11bdacdbf8e661acedf3411f75310e4e8dcf8f9ce8ec11ec17719677fe77afbb3036de07811c4309dbd9251c04edff017947e224
SSDEEP

12288:5O9ISzaeV1oie7CIXYEEsB7HBDGsqQuXpLyQVbDDzQBlFz+0Zdqbmw3q2MFC:5O7aezoB7/o5sBM/vRD8lFzzdeFtMFC

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

Processes:

resource	yara_rule
behavioral2/memory/3888-2-0x0000000005FB0000-0x00000000060CB000-memory.dmp	family_djvu
behavioral2/memory/3912-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3912-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3912-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3912-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3912-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3164-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3164-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3164-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3164-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3164-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3164-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3164-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3164-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3164-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3164-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3164-39-0x0000000000400000-0x0000000000537000-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

Processes:

200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

640 icacls.exe

pid	process
640	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\336ea3d6-fe41-4565-9a15-69e82fe765f2\\200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe\" --AutoStart"	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.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

9 api.2ip.ua
10 api.2ip.ua
27 api.2ip.ua

flow	ioc
9	api.2ip.ua
10	api.2ip.ua
27	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe

description	pid	process	target process
PID 3888 set thread context of 3912	3888	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 1972 set thread context of 3164	1972	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe

pid	process
3912	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
3912	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
3164	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
3164	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe

C:\Users\Admin\AppData\Local\Temp\200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
"C:\Users\Admin\AppData\Local\Temp\200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3888

C:\Users\Admin\AppData\Local\Temp\200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
"C:\Users\Admin\AppData\Local\Temp\200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3912

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\336ea3d6-fe41-4565-9a15-69e82fe765f2" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:640

C:\Users\Admin\AppData\Local\Temp\200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
"C:\Users\Admin\AppData\Local\Temp\200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1972

C:\Users\Admin\AppData\Local\Temp\200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
"C:\Users\Admin\AppData\Local\Temp\200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:3164

Network

MITRE ATT&CK Matrix ATT&CK v13

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

1

T1222

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
Filesize
1KB

MD5
f8ed6292d6d2f9514668acec50849d17

SHA1
482745d97c48b32fd986e488d169ac4eb7edd737

SHA256
a7760866eaf849b079815652f9dce9eb9ec7c599199bc65c7030ca9e2ed91c26

SHA512
ebc265c4a27c4a1d14ef783b28f3cb0de9ca4f28795078c3d80bf2ec6574c4e8f3f3c7c68197b1ea6f037cb88268cfab99817660f442696167120bc6275cad4f

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
0cfc9ef15f1c05ec9637b74185e89946

SHA1
58693d00ee547d9b4ac02caa1122deadd9dab9e4

SHA256
9887355ed51323632e9aceb95042acb32b4c3e733c071dc894d075f470bef59a

SHA512
4d32d6768cab9eb1b275ceb5c144082fcd9ab3ee0a03182707d85db5ab72c5a3d81aa0d49c0d1d08819de127a7e20d8c2043e60d3d1f52336b6715b3e04355ec

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
Filesize
392B

MD5
7766a5430d8d84456b2cbf929f78c42c

SHA1
3d7608a085e3f8673e654facb392a27a5daeddd3

SHA256
44ef0bd1214b7b1474fcf9bdcdbd2ea7117bb249eb9b21668e83aec53fab9e67

SHA512
2bba9e9179077fa07dfe609daf5bd76d117bedf918459519868fbd0a9915c9b2d148277f34f5da009f8d72e77a7fb4bf8791b73abe39edb26c0ca1e6a297e457

Download Submit
C:\Users\Admin\AppData\Local\336ea3d6-fe41-4565-9a15-69e82fe765f2\200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
Filesize
780KB

MD5
4b2fb93459b4e03686148d0a1d3c1f00

SHA1
b16c9e43f7389ba51e1423f676cc61d9ec9d4354

SHA256
200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64

SHA512
31caad1014245fb375ecaefa11bdacdbf8e661acedf3411f75310e4e8dcf8f9ce8ec11ec17719677fe77afbb3036de07811c4309dbd9251c04edff017947e224

Download Submit
memory/1972-20-0x0000000004590000-0x0000000004625000-memory.dmp

Filesize
596KB

Download
memory/3164-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3164-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3164-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3164-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3164-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3164-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3164-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3164-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3164-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3164-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3164-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3888-1-0x0000000004650000-0x00000000046E8000-memory.dmp

Filesize
608KB

Download
memory/3888-2-0x0000000005FB0000-0x00000000060CB000-memory.dmp

Filesize
1.1MB

Download
memory/3912-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3912-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3912-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3912-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3912-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 3888 wrote to memory of 3912	3888	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 3888 wrote to memory of 3912	3888	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 3888 wrote to memory of 3912	3888	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 3888 wrote to memory of 3912	3888	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 3888 wrote to memory of 3912	3888	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 3888 wrote to memory of 3912	3888	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 3888 wrote to memory of 3912	3888	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 3888 wrote to memory of 3912	3888	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 3888 wrote to memory of 3912	3888	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 3888 wrote to memory of 3912	3888	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 3912 wrote to memory of 640	3912	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	icacls.exe
PID 3912 wrote to memory of 640	3912	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	icacls.exe
PID 3912 wrote to memory of 640	3912	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	icacls.exe
PID 3912 wrote to memory of 1972	3912	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 3912 wrote to memory of 1972	3912	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 3912 wrote to memory of 1972	3912	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 1972 wrote to memory of 3164	1972	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 1972 wrote to memory of 3164	1972	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 1972 wrote to memory of 3164	1972	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 1972 wrote to memory of 3164	1972	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 1972 wrote to memory of 3164	1972	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 1972 wrote to memory of 3164	1972	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 1972 wrote to memory of 3164	1972	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 1972 wrote to memory of 3164	1972	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 1972 wrote to memory of 3164	1972	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe
PID 1972 wrote to memory of 3164	1972	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe	200690de2b973c6f7a702d5129dea09aec57d548cab07e19f012e5a8e0c6ae64.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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