djvu | e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67

General

Target

e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
Size

771KB
MD5

5d587e4f2486d642e49cafe767ef5d75
SHA1

d32d1eefb81dc327340402ac20117901ce21d57d
SHA256

e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67
SHA512

5d9136d8724823025fa97390d48fb48e5e79bba16f576b5d83acd7ac9d14785291aa4651deb47cdf49d1d251d33e71c487011e11e46598dec198012561e8a1c5
SSDEEP

12288:Jdi/2Zd/RXNJ7PwmfhhiF3Wi7PW/BqZyW5jRoSDXKSuqBsme60g:JdiOZd/1jNHiFWwW/8Z95jpXlXBsF5g

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
behavioral1/memory/2872-4-0x0000000003CE0000-0x0000000003DFB000-memory.dmp	family_djvu
behavioral1/memory/2256-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2256-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2256-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2256-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2256-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3764-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3764-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3764-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3764-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3764-33-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3764-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3764-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3764-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3764-39-0x0000000000400000-0x0000000000537000-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:

e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

3688 icacls.exe

pid	process
3688	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\39a8e2b0-bd8c-41a9-9670-7c75a4893eb2\\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe\" --AutoStart"	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.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
5 api.2ip.ua
14 api.2ip.ua

flow	ioc
2	api.2ip.ua
5	api.2ip.ua
14	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exee764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe

description	pid	process	target process
PID 2872 set thread context of 2256	2872	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 1244 set thread context of 3764	1244	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.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:

e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exee764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe

pid	process
2256	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
2256	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
3764	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
3764	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exee764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exee764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe

C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
"C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2872

C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
"C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe"
2⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2256

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\39a8e2b0-bd8c-41a9-9670-7c75a4893eb2" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:3688

C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
"C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1244

C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
"C:\Users\Admin\AppData\Local\Temp\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:3764

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
9e130b50184e39e32205c9dd3befee15

SHA1
150b8bfb3208d3a854996e02c1470d81530335b5

SHA256
7b5bd8bc8ac2cd655c212c4790e5d9a259046730a9f0bb51616b036da55d2c50

SHA512
3cf76690e692c874792fa99d6358ebdd3596bab33bede653067375fc7de617eb7f150f52e640d34b2d51dcbe39c5bb88381bdc0279054ab65d5f1492d89f648f

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
519a9b29adcc4888ca7e97f40602116b

SHA1
c1a15fd16f80763da70a273487c769b07a57b36f

SHA256
b4ccd196363501ad100e9f092a5556b09e54acee1783c0fd0e87bb1b534a3a7b

SHA512
da3609ce24a3840acbe4120a71749d68e1da3ade561fbb0a3c40242efe435e9534d9b66b64b5d1fde5170bb78274f0436f4a2cfb9e3cca2620de4bb4807822e9

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

MD5
d8a9ae212cb1f297a72821bdc95038f9

SHA1
712290a6dc94d8d8e38c1cd8aee3e5ff5131c8e1

SHA256
07805b91952ff8d3e7b2c175cf6c6ad39d253ee09e447ecadab22a2809a1d3fa

SHA512
e5596e00bc90d3fd676666e982d4e5c005ee1691327725083ecd56203227564876f967b619ab00b1f23795f6f1159d4efd6b1c7fa7e8138bad2f72b5e422a2aa

Download Submit
C:\Users\Admin\AppData\Local\39a8e2b0-bd8c-41a9-9670-7c75a4893eb2\e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
Filesize
771KB

MD5
5d587e4f2486d642e49cafe767ef5d75

SHA1
d32d1eefb81dc327340402ac20117901ce21d57d

SHA256
e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67

SHA512
5d9136d8724823025fa97390d48fb48e5e79bba16f576b5d83acd7ac9d14785291aa4651deb47cdf49d1d251d33e71c487011e11e46598dec198012561e8a1c5

Download Submit
memory/1244-23-0x0000000000400000-0x000000000200C000-memory.dmp

Filesize
28.0MB

Download
memory/1244-37-0x0000000000400000-0x000000000200C000-memory.dmp

Filesize
28.0MB

Download
memory/2256-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2256-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2256-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2256-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2256-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2872-4-0x0000000003CE0000-0x0000000003DFB000-memory.dmp

Filesize
1.1MB

Download
memory/2872-1-0x0000000002170000-0x0000000002210000-memory.dmp

Filesize
640KB

Download
memory/3764-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3764-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3764-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3764-33-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3764-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3764-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3764-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3764-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3764-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 2872 wrote to memory of 2256	2872	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 2872 wrote to memory of 2256	2872	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 2872 wrote to memory of 2256	2872	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 2872 wrote to memory of 2256	2872	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 2872 wrote to memory of 2256	2872	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 2872 wrote to memory of 2256	2872	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 2872 wrote to memory of 2256	2872	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 2872 wrote to memory of 2256	2872	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 2872 wrote to memory of 2256	2872	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 2872 wrote to memory of 2256	2872	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 2256 wrote to memory of 3688	2256	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	icacls.exe
PID 2256 wrote to memory of 3688	2256	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	icacls.exe
PID 2256 wrote to memory of 3688	2256	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	icacls.exe
PID 2256 wrote to memory of 1244	2256	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 2256 wrote to memory of 1244	2256	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 2256 wrote to memory of 1244	2256	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 1244 wrote to memory of 3764	1244	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 1244 wrote to memory of 3764	1244	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 1244 wrote to memory of 3764	1244	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 1244 wrote to memory of 3764	1244	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 1244 wrote to memory of 3764	1244	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 1244 wrote to memory of 3764	1244	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 1244 wrote to memory of 3764	1244	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 1244 wrote to memory of 3764	1244	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 1244 wrote to memory of 3764	1244	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe
PID 1244 wrote to memory of 3764	1244	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe	e764cddd88ffb54266c5392fea43b01d44dabd06d33ec62cfbbc98b81fc49a67.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads