djvu | 09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319

General

Target

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
Size

708KB
MD5

afc2780d65fe1e67d01ae629cd2f1e0f
SHA1

cabfc8608feca588c98e30476e79b9df85171c6f
SHA256

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319
SHA512

390b4b8a11c099d512e2388c408492190311b2daaefc063c9279b6cc3f3a96ec3b71a1905556188439b42d29d2bde40662241a4ba08a456e5c72af3307f915b5
SSDEEP

12288:SbYZF34fEdgCZ/Qp9bzIWDvhcC38g1AjGjJp4C0G6K98:S2F4EdgCZ/clbcCN6m74CS

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 15 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4256-2-0x00000000041D0000-0x00000000042EB000-memory.dmp	family_djvu
behavioral2/memory/4760-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4760-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4760-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4760-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4760-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1440-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1440-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1440-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1440-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1440-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1440-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1440-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1440-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1440-37-0x0000000000400000-0x0000000000537000-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:

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

3700 icacls.exe

pid	process
3700	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\cc03ae90-5410-4c9a-9eda-d70cec85aa09\\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe\" --AutoStart"	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.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

2 api.2ip.ua
4 api.2ip.ua
12 api.2ip.ua

flow	ioc
2	api.2ip.ua
4	api.2ip.ua
12	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

description	pid	process	target process
PID 4256 set thread context of 4760	4256	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3080 set thread context of 1440	3080	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.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:

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

pid	process
4760	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
4760	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
1440	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
1440	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
"C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4256

C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
"C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4760

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\cc03ae90-5410-4c9a-9eda-d70cec85aa09" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:3700

C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
"C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3080

C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
"C:\Users\Admin\AppData\Local\Temp\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:1440

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

Replay Monitor

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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
d6cbf9183729e2ade6f0677960105a12

SHA1
0e9377f8abb6a50dfb7b41d8b0d50e6b60b9c132

SHA256
3c7fb513f23fcccfb2fc16aa77dd9ea79046e46ba3caabfa2fe1738c26d3dfcb

SHA512
22672413ab630e0d1b9909bfc63a0377da3465eda240580406a23270a561e9f06d3dc446e6ec39134e9dee4bc96396d1e795f0a6446c2567e584b09241122cde

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

Filesize
392B

MD5
2fd6a4c87a0b4b950aa2eac688e380ff

SHA1
6a7b82b92d8b37096d460af302416aa2f6e56c1d

SHA256
6126cc1f04cb96b12785a14ddd4738963c2975703ba8022a5d9533ef6282f995

SHA512
077ffef29c05c900544b9ac18d77b90098b9c06e1852087fcd0160d56ce2434afd113aa4e3dd9b9f16e4008d11192ee3db765160b9979b4a8a0d819415991c3d

Download Submit
C:\Users\Admin\AppData\Local\cc03ae90-5410-4c9a-9eda-d70cec85aa09\09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

Filesize
708KB

MD5
afc2780d65fe1e67d01ae629cd2f1e0f

SHA1
cabfc8608feca588c98e30476e79b9df85171c6f

SHA256
09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319

SHA512
390b4b8a11c099d512e2388c408492190311b2daaefc063c9279b6cc3f3a96ec3b71a1905556188439b42d29d2bde40662241a4ba08a456e5c72af3307f915b5

Download Submit
memory/1440-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1440-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1440-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1440-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1440-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1440-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1440-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1440-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1440-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4256-1-0x0000000004010000-0x00000000040A8000-memory.dmp

Filesize
608KB

Download
memory/4256-2-0x00000000041D0000-0x00000000042EB000-memory.dmp

Filesize
1.1MB

Download
memory/4760-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4760-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4760-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4760-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4760-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 4256 wrote to memory of 4760	4256	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4256 wrote to memory of 4760	4256	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4256 wrote to memory of 4760	4256	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4256 wrote to memory of 4760	4256	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4256 wrote to memory of 4760	4256	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4256 wrote to memory of 4760	4256	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4256 wrote to memory of 4760	4256	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4256 wrote to memory of 4760	4256	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4256 wrote to memory of 4760	4256	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4256 wrote to memory of 4760	4256	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4760 wrote to memory of 3700	4760	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	icacls.exe
PID 4760 wrote to memory of 3700	4760	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	icacls.exe
PID 4760 wrote to memory of 3700	4760	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	icacls.exe
PID 4760 wrote to memory of 3080	4760	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4760 wrote to memory of 3080	4760	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 4760 wrote to memory of 3080	4760	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3080 wrote to memory of 1440	3080	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3080 wrote to memory of 1440	3080	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3080 wrote to memory of 1440	3080	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3080 wrote to memory of 1440	3080	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3080 wrote to memory of 1440	3080	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3080 wrote to memory of 1440	3080	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3080 wrote to memory of 1440	3080	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3080 wrote to memory of 1440	3080	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3080 wrote to memory of 1440	3080	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe
PID 3080 wrote to memory of 1440	3080	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe	09c996d86da2ff031b3039f9d0c26411ab6e4ef60042c1927d21b83c50104319.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads