djvu | 8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424

General

Target

8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
Size

751KB
MD5

66daee668919040f9a49ed94e15b6b60
SHA1

7338b6258df1ee6c3898996dcd347ca1c3b76113
SHA256

8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424
SHA512

ec7d593cc0cff2320b7f19cd3f6bdd5ced37fa12cb0f43ae7fa02297f32118e248c6cedde2a1bb54331c2ca6eb7184bbe03d124c30a46ffd12433c56259dad74
SSDEEP

12288:r4XPjW2T9vKlvj1mvsynUMwLicC+iW9ptaJbDr6UrsaenME8Q0YRGLpg:r+Kqg5j1mLn6icCbW9ptaJbyBME7r2p

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/test1/get.php

Attributes

extension
.bgjs
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: support@freshingmail.top Reserve e-mail address to contact us: datarestorehelpyou@airmail.cc Your personal ID: 0863PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 17 IoCs

Processes:

resource	yara_rule
behavioral2/memory/704-2-0x0000000004C80000-0x0000000004D9B000-memory.dmp	family_djvu
behavioral2/memory/3320-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3320-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3320-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3320-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3320-18-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4240-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4240-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4240-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4240-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4240-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4240-32-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4240-35-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4240-37-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4240-38-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4240-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4240-40-0x0000000000400000-0x0000000000537000-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

Processes:

icacls.exe

pid process

328 icacls.exe

pid	process
328	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-834482027-582050234-2368284635-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\13d859a2-e93b-402e-97b1-04be300e8c35\\8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe\" --AutoStart"	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.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

1 api.2ip.ua
2 api.2ip.ua
9 api.2ip.ua

flow	ioc
1	api.2ip.ua
2	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe

description	pid	process	target process
PID 704 set thread context of 3320	704	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 2528 set thread context of 4240	2528	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.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:

8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe

pid	process
3320	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
3320	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
4240	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
4240	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe

C:\Users\Admin\AppData\Local\Temp\8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
"C:\Users\Admin\AppData\Local\Temp\8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:704

C:\Users\Admin\AppData\Local\Temp\8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
"C:\Users\Admin\AppData\Local\Temp\8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3320

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Users\Admin\AppData\Local\13d859a2-e93b-402e-97b1-04be300e8c35" /deny *S-1-1-0:(OI)(CI)(DE,DC)
3⤵
- Modifies file permissions
PID:328

C:\Users\Admin\AppData\Local\Temp\8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
"C:\Users\Admin\AppData\Local\Temp\8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe" --Admin IsNotAutoStart IsNotTask
3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2528

C:\Users\Admin\AppData\Local\Temp\8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
"C:\Users\Admin\AppData\Local\Temp\8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe" --Admin IsNotAutoStart IsNotTask
4⤵
- Suspicious behavior: EnumeratesProcesses
PID:4240

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

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

MD5
4ec20346a7b5dd75cfde7b15df208cf0

SHA1
517b437fc42dfc6e2f0d055dc678a0c080d47a0b

SHA256
4e3ee32076baf8538d9b9473169229647c419aa92f4bef71fb12fb714ac4e77d

SHA512
dff871a49c68eebb57eb5d21c197c5f47adc2444edde5f9da25c35a91519747cdb07aae26adfebcf0e48409f45ed8e040ec1c777910942aa7c18268bc6bcd7d1

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
5864ab576a4f630c61e51d27db03f035

SHA1
a134a82691820d36648016815cd5cecb1fd23783

SHA256
c29e72b79bcc32a9a0e8634541a83bf8e9d3a92a22f246a4839f7e568aab4d1d

SHA512
ada5803ba32b83d51c518bcf4d0f9567f91093a0d8a7cc54404cc132af042199c08709b79153f8de31809ced49935ef1827508455eac2baccf34ddd2f29bbcd8

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

MD5
e97573fd0a068ecc550071bec57bb331

SHA1
266cd60fce220bc0994527a93218785e4ae9ede6

SHA256
137bd1ac5c9b8a8fd371b9f5b6b5b5f975f648afcd083dbcbc7add7ba03cac05

SHA512
863b55a596c6bb021f043a57da2dc8c6b3bbb03be37baeef8b2ec5b357406f6a66a0b4d24a94cfc1c227378b88027854598eff6973a163ec5a9c6b565fcc009e

Download Submit
C:\Users\Admin\AppData\Local\13d859a2-e93b-402e-97b1-04be300e8c35\8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
Filesize
751KB

MD5
66daee668919040f9a49ed94e15b6b60

SHA1
7338b6258df1ee6c3898996dcd347ca1c3b76113

SHA256
8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424

SHA512
ec7d593cc0cff2320b7f19cd3f6bdd5ced37fa12cb0f43ae7fa02297f32118e248c6cedde2a1bb54331c2ca6eb7184bbe03d124c30a46ffd12433c56259dad74

Download Submit
memory/704-1-0x00000000031F0000-0x0000000003288000-memory.dmp

Filesize
608KB

Download
memory/704-2-0x0000000004C80000-0x0000000004D9B000-memory.dmp

Filesize
1.1MB

Download
memory/2528-21-0x0000000003100000-0x00000000031A0000-memory.dmp

Filesize
640KB

Download
memory/3320-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3320-18-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3320-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3320-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3320-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4240-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4240-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4240-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4240-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4240-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4240-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4240-35-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4240-37-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4240-38-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4240-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4240-40-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 704 wrote to memory of 3320	704	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 704 wrote to memory of 3320	704	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 704 wrote to memory of 3320	704	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 704 wrote to memory of 3320	704	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 704 wrote to memory of 3320	704	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 704 wrote to memory of 3320	704	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 704 wrote to memory of 3320	704	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 704 wrote to memory of 3320	704	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 704 wrote to memory of 3320	704	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 704 wrote to memory of 3320	704	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 3320 wrote to memory of 328	3320	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	icacls.exe
PID 3320 wrote to memory of 328	3320	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	icacls.exe
PID 3320 wrote to memory of 328	3320	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	icacls.exe
PID 3320 wrote to memory of 2528	3320	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 3320 wrote to memory of 2528	3320	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 3320 wrote to memory of 2528	3320	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 2528 wrote to memory of 4240	2528	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 2528 wrote to memory of 4240	2528	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 2528 wrote to memory of 4240	2528	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 2528 wrote to memory of 4240	2528	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 2528 wrote to memory of 4240	2528	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 2528 wrote to memory of 4240	2528	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 2528 wrote to memory of 4240	2528	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 2528 wrote to memory of 4240	2528	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 2528 wrote to memory of 4240	2528	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe
PID 2528 wrote to memory of 4240	2528	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe	8dbe93c345db9798b9cd77de14133f888b3cc7fca5ca2977f79a78ab07d47424.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads