djvu | 99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac

General

Target

99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe
Size

712KB
MD5

5c01df397d0733f2be4d5a7c55429db7
SHA1

9fcdc973fe2ed02d2952c54787683724ed66a24e
SHA256

99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac
SHA512

aa3803b130694097487a0a5e73e9d2151f1e25bdc2960009a1d18cf98c1c68c37d26f232253c1bd24448fa0a7450b1fe2c5156b9d4b2fcca0f2e0eacce80cdaa
SSDEEP

12288:v3zaB9AoomYixKkSY0k0XgvYjxTJcCavWAH:2AoomxS1IYFTJ5auA

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
behavioral2/memory/3840-2-0x00000000049D0000-0x0000000004AEB000-memory.dmp	family_djvu
behavioral2/memory/3544-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3544-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3544-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3544-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3544-12-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2040-15-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2040-16-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2040-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2040-18-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2040-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2040-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2040-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2040-27-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2040-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2040-30-0x0000000000400000-0x0000000000537000-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

pid	Process
3564	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-1-5-21-293923083-2364846840-4256557006-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\0097d2f7-e0d2-4602-922f-d96da23359f4\\99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe\" --AutoStart"	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.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
1	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3840 set thread context of 3544	3840	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	80
PID 2748 set thread context of 2040	2748	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	85

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
3544	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe
3544	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe
2040	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe
2040	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3840 wrote to memory of 3544	3840	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	80
PID 3840 wrote to memory of 3544	3840	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	80
PID 3840 wrote to memory of 3544	3840	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	80
PID 3840 wrote to memory of 3544	3840	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	80
PID 3840 wrote to memory of 3544	3840	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	80
PID 3840 wrote to memory of 3544	3840	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	80
PID 3840 wrote to memory of 3544	3840	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	80
PID 3840 wrote to memory of 3544	3840	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	80
PID 3840 wrote to memory of 3544	3840	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	80
PID 3840 wrote to memory of 3544	3840	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	80
PID 3544 wrote to memory of 3564	3544	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	81
PID 3544 wrote to memory of 3564	3544	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	81
PID 3544 wrote to memory of 3564	3544	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	81
PID 3544 wrote to memory of 2748	3544	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	82
PID 3544 wrote to memory of 2748	3544	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	82
PID 3544 wrote to memory of 2748	3544	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	82
PID 2748 wrote to memory of 2040	2748	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	85
PID 2748 wrote to memory of 2040	2748	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	85
PID 2748 wrote to memory of 2040	2748	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	85
PID 2748 wrote to memory of 2040	2748	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	85
PID 2748 wrote to memory of 2040	2748	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	85
PID 2748 wrote to memory of 2040	2748	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	85
PID 2748 wrote to memory of 2040	2748	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	85
PID 2748 wrote to memory of 2040	2748	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	85
PID 2748 wrote to memory of 2040	2748	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	85
PID 2748 wrote to memory of 2040	2748	99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe	85

C:\Users\Admin\AppData\Local\Temp\99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe
"C:\Users\Admin\AppData\Local\Temp\99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3840
- C:\Users\Admin\AppData\Local\Temp\99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe
  "C:\Users\Admin\AppData\Local\Temp\99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3544
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\0097d2f7-e0d2-4602-922f-d96da23359f4" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:3564
- - C:\Users\Admin\AppData\Local\Temp\99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe
    "C:\Users\Admin\AppData\Local\Temp\99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2748
  - - C:\Users\Admin\AppData\Local\Temp\99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe
      "C:\Users\Admin\AppData\Local\Temp\99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:2040

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\0097d2f7-e0d2-4602-922f-d96da23359f4\99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac.exe

Filesize
712KB

MD5
5c01df397d0733f2be4d5a7c55429db7

SHA1
9fcdc973fe2ed02d2952c54787683724ed66a24e

SHA256
99aabd4ea7ba74c3e24b12388207c29d5bf352c7c0150b6f5dabf2166a1facac

SHA512
aa3803b130694097487a0a5e73e9d2151f1e25bdc2960009a1d18cf98c1c68c37d26f232253c1bd24448fa0a7450b1fe2c5156b9d4b2fcca0f2e0eacce80cdaa

Download Submit
memory/2040-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2040-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2040-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2040-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2040-27-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2040-18-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2040-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2040-15-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2040-16-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2040-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3544-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3544-12-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3544-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3544-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3544-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3840-1-0x0000000003190000-0x000000000322C000-memory.dmp

Filesize
624KB

Download
memory/3840-2-0x00000000049D0000-0x0000000004AEB000-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