djvu | 5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf

General

Target

5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe
Size

810KB
MD5

3d6410af469e6d70a54e4892e7b28260
SHA1

cb7bd6b2116b472ee944433396f365d28af52d76
SHA256

5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf
SHA512

dd719ab3e1ab2482cd888df917c2c5dc452e08f5f25ee7003a7c07d0017fe0c8bb37c0a5f8ffed608d640742ba32ef1715cb0f0532741d31277e7e9f8226f193
SSDEEP

12288:CFmZSeenEm+wj7z9bA6DC62y5/020WxKZkc8ZbE86SGcj97mcRKMODmd:XSj7z9zDUI/02VoGcQb36Odm/Mymd

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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0863PsawqS

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 17 IoCs

resource	yara_rule
behavioral1/memory/1936-2-0x00000000037D0000-0x00000000038EB000-memory.dmp	family_djvu
behavioral1/memory/4904-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4904-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4904-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4904-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4904-12-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1952-16-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1952-18-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1952-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1952-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1952-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1952-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1952-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1952-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1952-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1952-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/1952-32-0x0000000000400000-0x0000000000537000-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-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4940	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-1-5-21-17203666-93769886-2545153620-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\6f7601dd-e8fe-420a-a0aa-a6ec5685e013\\5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe\" --AutoStart"	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.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
6	api.2ip.ua
2	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1936 set thread context of 4904	1936	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	84
PID 1352 set thread context of 1952	1352	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	92

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
4904	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe
4904	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe
1952	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe
1952	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 4904	1936	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	84
PID 1936 wrote to memory of 4904	1936	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	84
PID 1936 wrote to memory of 4904	1936	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	84
PID 1936 wrote to memory of 4904	1936	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	84
PID 1936 wrote to memory of 4904	1936	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	84
PID 1936 wrote to memory of 4904	1936	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	84
PID 1936 wrote to memory of 4904	1936	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	84
PID 1936 wrote to memory of 4904	1936	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	84
PID 1936 wrote to memory of 4904	1936	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	84
PID 1936 wrote to memory of 4904	1936	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	84
PID 4904 wrote to memory of 4940	4904	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	89
PID 4904 wrote to memory of 4940	4904	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	89
PID 4904 wrote to memory of 4940	4904	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	89
PID 4904 wrote to memory of 1352	4904	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	90
PID 4904 wrote to memory of 1352	4904	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	90
PID 4904 wrote to memory of 1352	4904	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	90
PID 1352 wrote to memory of 1952	1352	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	92
PID 1352 wrote to memory of 1952	1352	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	92
PID 1352 wrote to memory of 1952	1352	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	92
PID 1352 wrote to memory of 1952	1352	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	92
PID 1352 wrote to memory of 1952	1352	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	92
PID 1352 wrote to memory of 1952	1352	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	92
PID 1352 wrote to memory of 1952	1352	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	92
PID 1352 wrote to memory of 1952	1352	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	92
PID 1352 wrote to memory of 1952	1352	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	92
PID 1352 wrote to memory of 1952	1352	5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe	92

C:\Users\Admin\AppData\Local\Temp\5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe
"C:\Users\Admin\AppData\Local\Temp\5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\Temp\5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe
  "C:\Users\Admin\AppData\Local\Temp\5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4904
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\6f7601dd-e8fe-420a-a0aa-a6ec5685e013" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:4940
- - C:\Users\Admin\AppData\Local\Temp\5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe
    "C:\Users\Admin\AppData\Local\Temp\5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1352
  - - C:\Users\Admin\AppData\Local\Temp\5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe
      "C:\Users\Admin\AppData\Local\Temp\5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:1952

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\6f7601dd-e8fe-420a-a0aa-a6ec5685e013\5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf.exe

Filesize
810KB

MD5
3d6410af469e6d70a54e4892e7b28260

SHA1
cb7bd6b2116b472ee944433396f365d28af52d76

SHA256
5f80e340612bd2b04c82551dd03ad5d30fec014373eea28413f6380286f7dccf

SHA512
dd719ab3e1ab2482cd888df917c2c5dc452e08f5f25ee7003a7c07d0017fe0c8bb37c0a5f8ffed608d640742ba32ef1715cb0f0532741d31277e7e9f8226f193

Download Submit
memory/1352-14-0x0000000001B00000-0x0000000001BA1000-memory.dmp

Filesize
644KB

Download
memory/1936-2-0x00000000037D0000-0x00000000038EB000-memory.dmp

Filesize
1.1MB

Download
memory/1936-1-0x0000000001D90000-0x0000000001E30000-memory.dmp

Filesize
640KB

Download
memory/1952-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1952-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1952-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1952-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1952-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1952-16-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1952-18-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1952-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1952-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1952-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1952-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4904-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4904-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4904-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4904-12-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4904-6-0x0000000000400000-0x0000000000537000-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