djvu | 1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6

General

Target

1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe
Size

769KB
MD5

51cd36b5f31c796f7d8b37b6b3ea6de7
SHA1

e732e50b85f2cc0a5b4524aa940615b019f6a39b
SHA256

1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6
SHA512

e3de73590bc38f1cd00c767b173737a92346b046e3c6dd5342027720eed9e4613b64ee71502c1bace23f9477674ea4a32f3043b0140c96aecb96daba3ff67721
SSDEEP

12288:u+lEQPxGAAO4MECrtJ5IU4o0vy4ysJyxH46UfPD+JXsRMIMdeBxgRwYwpqi0gHxb:u+lEQpGlO4MEOq/vy4isfbuXjXeBxHq

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://sajdfue.com/test2/get.php

Attributes

extension
.bgzq
offline_id
Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1
payload_url
http://sdfjhuz.com/dl/build2.exe

http://sajdfue.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 9 IoCs

resource	yara_rule
behavioral1/memory/4232-2-0x0000000004AD0000-0x0000000004BEB000-memory.dmp	family_djvu
behavioral1/memory/2472-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2472-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2472-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2472-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2472-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3868-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3868-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3868-25-0x0000000000400000-0x0000000000537000-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-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3956	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-1-5-21-2177723727-746291240-1644359950-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\023a0944-a38c-44b5-a82e-f90d0a73d314\\1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe\" --AutoStart"	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
17	api.2ip.ua
18	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4232 set thread context of 2472	4232	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	92
PID 1296 set thread context of 3868	1296	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	99

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2772	3868	WerFault.exe	99

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2472	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe
2472	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeManageVolumePrivilege	4692	svchost.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4232 wrote to memory of 2472	4232	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	92
PID 4232 wrote to memory of 2472	4232	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	92
PID 4232 wrote to memory of 2472	4232	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	92
PID 4232 wrote to memory of 2472	4232	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	92
PID 4232 wrote to memory of 2472	4232	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	92
PID 4232 wrote to memory of 2472	4232	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	92
PID 4232 wrote to memory of 2472	4232	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	92
PID 4232 wrote to memory of 2472	4232	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	92
PID 4232 wrote to memory of 2472	4232	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	92
PID 4232 wrote to memory of 2472	4232	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	92
PID 2472 wrote to memory of 3956	2472	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	93
PID 2472 wrote to memory of 3956	2472	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	93
PID 2472 wrote to memory of 3956	2472	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	93
PID 2472 wrote to memory of 1296	2472	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	94
PID 2472 wrote to memory of 1296	2472	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	94
PID 2472 wrote to memory of 1296	2472	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	94
PID 1296 wrote to memory of 3868	1296	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	99
PID 1296 wrote to memory of 3868	1296	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	99
PID 1296 wrote to memory of 3868	1296	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	99
PID 1296 wrote to memory of 3868	1296	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	99
PID 1296 wrote to memory of 3868	1296	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	99
PID 1296 wrote to memory of 3868	1296	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	99
PID 1296 wrote to memory of 3868	1296	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	99
PID 1296 wrote to memory of 3868	1296	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	99
PID 1296 wrote to memory of 3868	1296	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	99
PID 1296 wrote to memory of 3868	1296	1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe	99

C:\Users\Admin\AppData\Local\Temp\1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe
"C:\Users\Admin\AppData\Local\Temp\1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4232
- C:\Users\Admin\AppData\Local\Temp\1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe
  "C:\Users\Admin\AppData\Local\Temp\1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2472
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\023a0944-a38c-44b5-a82e-f90d0a73d314" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:3956
- - C:\Users\Admin\AppData\Local\Temp\1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe
    "C:\Users\Admin\AppData\Local\Temp\1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1296
  - - C:\Users\Admin\AppData\Local\Temp\1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe
      "C:\Users\Admin\AppData\Local\Temp\1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      PID:3868
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 568
        5⤵
        Program crash
        
        PID:2772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3868 -ip 3868
1⤵
PID:2336

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
1⤵
PID:2180

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k UnistackSvcGroup
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4692

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\Local\023a0944-a38c-44b5-a82e-f90d0a73d314\1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6.exe

Filesize
769KB

MD5
51cd36b5f31c796f7d8b37b6b3ea6de7

SHA1
e732e50b85f2cc0a5b4524aa940615b019f6a39b

SHA256
1dfda1a6c33ef932242c963cf9cd681b32200f812a2f7eb80e67c59d5c3807a6

SHA512
e3de73590bc38f1cd00c767b173737a92346b046e3c6dd5342027720eed9e4613b64ee71502c1bace23f9477674ea4a32f3043b0140c96aecb96daba3ff67721

Download Submit
memory/1296-20-0x0000000003050000-0x00000000030E9000-memory.dmp

Filesize
612KB

Download
memory/2472-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2472-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2472-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2472-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2472-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3868-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3868-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3868-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4232-2-0x0000000004AD0000-0x0000000004BEB000-memory.dmp

Filesize
1.1MB

Download
memory/4232-1-0x0000000003180000-0x000000000321D000-memory.dmp

Filesize
628KB

Download
memory/4692-28-0x00000283CF690000-0x00000283CF6A0000-memory.dmp

Filesize
64KB

Download
memory/4692-44-0x00000283CF790000-0x00000283CF7A0000-memory.dmp

Filesize
64KB

Download
memory/4692-60-0x00000283D7B00000-0x00000283D7B01000-memory.dmp

Filesize
4KB

Download
memory/4692-62-0x00000283D7B30000-0x00000283D7B31000-memory.dmp

Filesize
4KB

Download
memory/4692-63-0x00000283D7B30000-0x00000283D7B31000-memory.dmp

Filesize
4KB

Download
memory/4692-64-0x00000283D7C40000-0x00000283D7C41000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads