djvu | ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb

General

Target

ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
Size

710KB
MD5

a216e53189aac7badb3801bfb806c058
SHA1

97b338912cb414c2ed6247288cffb46a6f4e63dc
SHA256

ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb
SHA512

5975d23ca8d6469e8877dba219beedf0f1c92a23d65f151b0e835e61f40e05285f91d8ddf48d71699470d161035d9f45791d5e2364f7c71b2683d04a6fea7d34
SSDEEP

12288:bbty7ATsgtulTnRU0htKcFMWxaVufaVFiDNqZMXuEOwgd:bbtyn/1nmG3xGIU5Ers

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

resource	yara_rule
behavioral1/memory/2444-2-0x0000000004A30000-0x0000000004B4B000-memory.dmp	family_djvu
behavioral1/memory/3952-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3952-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3952-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3952-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3952-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1412-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1412-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1412-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1412-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1412-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1412-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1412-34-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1412-36-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1412-37-0x0000000000400000-0x0000000000537000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1504	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-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\fae8cdb5-c587-4bf9-8f4c-e6c7c3cc7191\\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe\" --AutoStart"	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.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
3	api.2ip.ua
4	api.2ip.ua
17	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2444 set thread context of 3952	2444	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	85
PID 4972 set thread context of 1412	4972	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	93

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
3952	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
3952	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
1412	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
1412	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2444 wrote to memory of 3952	2444	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	85
PID 2444 wrote to memory of 3952	2444	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	85
PID 2444 wrote to memory of 3952	2444	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	85
PID 2444 wrote to memory of 3952	2444	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	85
PID 2444 wrote to memory of 3952	2444	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	85
PID 2444 wrote to memory of 3952	2444	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	85
PID 2444 wrote to memory of 3952	2444	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	85
PID 2444 wrote to memory of 3952	2444	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	85
PID 2444 wrote to memory of 3952	2444	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	85
PID 2444 wrote to memory of 3952	2444	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	85
PID 3952 wrote to memory of 1504	3952	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	89
PID 3952 wrote to memory of 1504	3952	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	89
PID 3952 wrote to memory of 1504	3952	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	89
PID 3952 wrote to memory of 4972	3952	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	90
PID 3952 wrote to memory of 4972	3952	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	90
PID 3952 wrote to memory of 4972	3952	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	90
PID 4972 wrote to memory of 1412	4972	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	93
PID 4972 wrote to memory of 1412	4972	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	93
PID 4972 wrote to memory of 1412	4972	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	93
PID 4972 wrote to memory of 1412	4972	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	93
PID 4972 wrote to memory of 1412	4972	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	93
PID 4972 wrote to memory of 1412	4972	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	93
PID 4972 wrote to memory of 1412	4972	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	93
PID 4972 wrote to memory of 1412	4972	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	93
PID 4972 wrote to memory of 1412	4972	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	93
PID 4972 wrote to memory of 1412	4972	ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe	93

C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
"C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
  "C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3952
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\fae8cdb5-c587-4bf9-8f4c-e6c7c3cc7191" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:1504
- - C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
    "C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4972
  - - C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe
      "C:\Users\Admin\AppData\Local\Temp\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:1412

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

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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
04473163de5fe1acc9f8960638788d55

SHA1
b55695b692d754123a7855291afae87a0c4f4191

SHA256
2da8973e0f48ce5f0a19a1f0cb3f05fc837faf559e247996f8fd643229f6e795

SHA512
7e3bbfe3b3952e871e4d515bb70c76cb6f158ce9650a3bcc4e24a0560dad08ab3bca2131640a9cc207efc0cd89fd5b600a32f332af9f1438c16a9e50aca693c4

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

Filesize
392B

MD5
7e42c714f8eaac6fc3ab98736060ef16

SHA1
b2dd18d39ce7e20e89ae057e4108b7d5bca6a17a

SHA256
b561035e4a83f0a6882fa449d742dd901432bff61d2aa0dce310e1a1227f06fa

SHA512
0f2a45e9f585efc3f8f853e3f0d4f3c9ca99c37047468707fe992a2b792f5266cee9ad6abd5dd0dde55df3a80bd053b20c5bf7705fa97f4ca897d2a1357c824d

Download Submit
C:\Users\Admin\AppData\Local\fae8cdb5-c587-4bf9-8f4c-e6c7c3cc7191\ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb.exe

Filesize
710KB

MD5
a216e53189aac7badb3801bfb806c058

SHA1
97b338912cb414c2ed6247288cffb46a6f4e63dc

SHA256
ed07f9e3b592afd64a39fb9e12b52505287ed80e1918a00b0b06acd0313b46cb

SHA512
5975d23ca8d6469e8877dba219beedf0f1c92a23d65f151b0e835e61f40e05285f91d8ddf48d71699470d161035d9f45791d5e2364f7c71b2683d04a6fea7d34

Download Submit
memory/1412-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1412-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1412-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1412-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1412-36-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1412-34-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1412-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1412-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1412-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2444-1-0x0000000004850000-0x00000000048F2000-memory.dmp

Filesize
648KB

Download
memory/2444-2-0x0000000004A30000-0x0000000004B4B000-memory.dmp

Filesize
1.1MB

Download
memory/3952-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3952-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3952-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3952-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3952-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads