djvu | 796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81

General

Target

796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe
Size

757KB
MD5

21ee0321e7278095664ef67a2aafada4
SHA1

aff5a8e6b0116daa39eecea23b4f6fa617f82e2a
SHA256

796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81
SHA512

fd055531a12cc936d536bef8142c4fcb572dceb7cbd992174cf25d0dac5884f19e3faeae0087ef38d844503dd44f720b67632dc3618f7a9da111e535ebfa620d
SSDEEP

12288:/9vuOHW8dnh1TspMyDygoALQq0EJns728IXsAFcG3d+VVEbNHOySuUhzvz845p9W:pFndh9099oALQq5sBFAFcG3d+V6ROz3C

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/4860-2-0x0000000003910000-0x0000000003A2B000-memory.dmp	family_djvu
behavioral1/memory/3640-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3640-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3640-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3640-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/3640-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4060-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4060-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4060-25-0x0000000000400000-0x0000000000537000-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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2340	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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\0fd6b4f4-d5e1-461b-b5c1-65113b29d740\\796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe\" --AutoStart"	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.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
4	api.2ip.ua
3	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4860 set thread context of 3640	4860	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	91
PID 1596 set thread context of 4060	1596	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	95

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
5044	4060	WerFault.exe	95

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3640	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe
3640	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4860 wrote to memory of 3640	4860	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	91
PID 4860 wrote to memory of 3640	4860	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	91
PID 4860 wrote to memory of 3640	4860	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	91
PID 4860 wrote to memory of 3640	4860	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	91
PID 4860 wrote to memory of 3640	4860	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	91
PID 4860 wrote to memory of 3640	4860	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	91
PID 4860 wrote to memory of 3640	4860	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	91
PID 4860 wrote to memory of 3640	4860	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	91
PID 4860 wrote to memory of 3640	4860	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	91
PID 4860 wrote to memory of 3640	4860	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	91
PID 3640 wrote to memory of 2340	3640	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	92
PID 3640 wrote to memory of 2340	3640	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	92
PID 3640 wrote to memory of 2340	3640	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	92
PID 3640 wrote to memory of 1596	3640	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	93
PID 3640 wrote to memory of 1596	3640	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	93
PID 3640 wrote to memory of 1596	3640	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	93
PID 1596 wrote to memory of 4060	1596	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	95
PID 1596 wrote to memory of 4060	1596	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	95
PID 1596 wrote to memory of 4060	1596	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	95
PID 1596 wrote to memory of 4060	1596	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	95
PID 1596 wrote to memory of 4060	1596	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	95
PID 1596 wrote to memory of 4060	1596	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	95
PID 1596 wrote to memory of 4060	1596	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	95
PID 1596 wrote to memory of 4060	1596	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	95
PID 1596 wrote to memory of 4060	1596	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	95
PID 1596 wrote to memory of 4060	1596	796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe	95

C:\Users\Admin\AppData\Local\Temp\796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe
"C:\Users\Admin\AppData\Local\Temp\796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4860
- C:\Users\Admin\AppData\Local\Temp\796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe
  "C:\Users\Admin\AppData\Local\Temp\796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3640
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\0fd6b4f4-d5e1-461b-b5c1-65113b29d740" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:2340
- - C:\Users\Admin\AppData\Local\Temp\796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe
    "C:\Users\Admin\AppData\Local\Temp\796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1596
  - - C:\Users\Admin\AppData\Local\Temp\796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe
      "C:\Users\Admin\AppData\Local\Temp\796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      PID:4060
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4060 -s 568
        5⤵
        Program crash
        
        PID:5044

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4060 -ip 4060
1⤵
PID:3024

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4088 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:8
1⤵
PID:5056

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\0fd6b4f4-d5e1-461b-b5c1-65113b29d740\796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81.exe

Filesize
757KB

MD5
21ee0321e7278095664ef67a2aafada4

SHA1
aff5a8e6b0116daa39eecea23b4f6fa617f82e2a

SHA256
796ffef2fedcd7e83e8bd1023036d4238458803841abc3ec28773a23551a5c81

SHA512
fd055531a12cc936d536bef8142c4fcb572dceb7cbd992174cf25d0dac5884f19e3faeae0087ef38d844503dd44f720b67632dc3618f7a9da111e535ebfa620d

Download Submit
memory/1596-20-0x0000000003620000-0x00000000036C0000-memory.dmp

Filesize
640KB

Download
memory/3640-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3640-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3640-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3640-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3640-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4060-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4060-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4060-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4860-1-0x0000000003860000-0x00000000038F7000-memory.dmp

Filesize
604KB

Download
memory/4860-2-0x0000000003910000-0x0000000003A2B000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads