djvu | 6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f

General

Target

6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe
Size

702KB
MD5

1e09f1352687fedf7b01243712c51af5
SHA1

d20da181cdba8e27413dd21b7c3364d3035d19fc
SHA256

6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f
SHA512

ee38bff074e9f2235c63a9c4945d9c34b1cf62c08c0e325117dd01106b8bfaf0beb526fe100b6fb99b0fc737aadf1ae08587f5e3779dbe89603c636a096b0fdf
SSDEEP

12288:OF3pjIcp1AnPZdIqNLegRYiHTftuL3l0SARntBztEkOdWr1CSOal1b/:83pjfp62gO7qSuB5edu0aLb/

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.bgzq
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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0864PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 16 IoCs

resource	yara_rule
behavioral1/memory/4632-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1576-4-0x00000000048D0000-0x00000000049EB000-memory.dmp	family_djvu
behavioral1/memory/4632-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4632-2-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4632-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4632-12-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1908-15-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1908-16-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1908-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1908-18-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1908-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1908-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1908-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1908-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1908-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1908-28-0x0000000000400000-0x0000000000537000-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-1-5-21-3726321484-1950364574-433157660-1000\Control Panel\International\Geo\Nation	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4788	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-1-5-21-3726321484-1950364574-433157660-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ed779cf5-f713-4614-8d25-430c8dfcdb8d\\6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe\" --AutoStart"	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.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
3	api.2ip.ua
9	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1576 set thread context of 4632	1576	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	87
PID 3824 set thread context of 1908	3824	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	91

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
4632	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe
4632	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe
1908	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe
1908	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 4632	1576	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	87
PID 1576 wrote to memory of 4632	1576	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	87
PID 1576 wrote to memory of 4632	1576	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	87
PID 1576 wrote to memory of 4632	1576	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	87
PID 1576 wrote to memory of 4632	1576	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	87
PID 1576 wrote to memory of 4632	1576	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	87
PID 1576 wrote to memory of 4632	1576	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	87
PID 1576 wrote to memory of 4632	1576	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	87
PID 1576 wrote to memory of 4632	1576	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	87
PID 1576 wrote to memory of 4632	1576	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	87
PID 4632 wrote to memory of 4788	4632	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	88
PID 4632 wrote to memory of 4788	4632	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	88
PID 4632 wrote to memory of 4788	4632	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	88
PID 4632 wrote to memory of 3824	4632	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	89
PID 4632 wrote to memory of 3824	4632	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	89
PID 4632 wrote to memory of 3824	4632	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	89
PID 3824 wrote to memory of 1908	3824	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	91
PID 3824 wrote to memory of 1908	3824	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	91
PID 3824 wrote to memory of 1908	3824	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	91
PID 3824 wrote to memory of 1908	3824	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	91
PID 3824 wrote to memory of 1908	3824	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	91
PID 3824 wrote to memory of 1908	3824	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	91
PID 3824 wrote to memory of 1908	3824	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	91
PID 3824 wrote to memory of 1908	3824	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	91
PID 3824 wrote to memory of 1908	3824	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	91
PID 3824 wrote to memory of 1908	3824	6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe	91

C:\Users\Admin\AppData\Local\Temp\6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe
"C:\Users\Admin\AppData\Local\Temp\6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Users\Admin\AppData\Local\Temp\6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe
  "C:\Users\Admin\AppData\Local\Temp\6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4632
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\ed779cf5-f713-4614-8d25-430c8dfcdb8d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:4788
- - C:\Users\Admin\AppData\Local\Temp\6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe
    "C:\Users\Admin\AppData\Local\Temp\6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3824
  - - C:\Users\Admin\AppData\Local\Temp\6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe
      "C:\Users\Admin\AppData\Local\Temp\6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:1908

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\Local\ed779cf5-f713-4614-8d25-430c8dfcdb8d\6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f.exe

Filesize
702KB

MD5
1e09f1352687fedf7b01243712c51af5

SHA1
d20da181cdba8e27413dd21b7c3364d3035d19fc

SHA256
6d93f4d47ed5e0a4c86ba98060ce666d3f4ff67cf574d6d3e1b9a196f11dad4f

SHA512
ee38bff074e9f2235c63a9c4945d9c34b1cf62c08c0e325117dd01106b8bfaf0beb526fe100b6fb99b0fc737aadf1ae08587f5e3779dbe89603c636a096b0fdf

Download Submit
memory/1576-1-0x0000000004830000-0x00000000048CB000-memory.dmp

Filesize
620KB

Download
memory/1576-4-0x00000000048D0000-0x00000000049EB000-memory.dmp

Filesize
1.1MB

Download
memory/1908-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1908-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1908-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1908-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1908-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1908-15-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1908-16-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1908-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1908-18-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1908-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4632-2-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4632-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4632-12-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4632-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4632-6-0x0000000000400000-0x0000000000537000-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