djvu | 32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea

General

Target

32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
Size

807KB
MD5

f22a07f566c981eb20ff0b4919acc695
SHA1

8885990f31137750ca6cf4a4ef90b36942f6f890
SHA256

32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea
SHA512

7dc4983c0bc68bcce53c8420bb4c049e2cab07d509a0ca088f9d0c1e4803ed2c20f90a985f55564ce51edf8a455b6be4f62f199ec3462bff8343d57f1f642bff
SSDEEP

12288:O7L6TRDWnyGDwYzM3JailasHMVD1duYBjSwzP3hINNvYe+l:BVWnDwYM1lJHidugTzRoNQe+

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
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rsa_pubkey.plain

Signatures

Detected Djvu ransomware 17 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4116-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4116-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4116-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3492-2-0x0000000003840000-0x000000000395B000-memory.dmp	family_djvu
behavioral2/memory/4116-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4116-12-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/720-14-0x0000000001D80000-0x0000000001E1A000-memory.dmp	family_djvu
behavioral2/memory/2148-16-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2148-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2148-18-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2148-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2148-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2148-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2148-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2148-28-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2148-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2148-32-0x0000000000400000-0x0000000000537000-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

Processes:

icacls.exe

pid process

4508 icacls.exe

pid	process
4508	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-891789021-684472942-1795878712-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\804f1d4d-8ced-4b42-b44b-624a22a2324a\\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe\" --AutoStart"	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.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.

Processes:

flow ioc

1 api.2ip.ua
5 api.2ip.ua

flow	ioc
1	api.2ip.ua
5	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe

description	pid	process	target process
PID 3492 set thread context of 4116	3492	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 720 set thread context of 2148	720	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe

pid	process
4116	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
4116	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
2148	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
2148	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe

C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
"C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3492
- C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
  "C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4116
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\804f1d4d-8ced-4b42-b44b-624a22a2324a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:4508
- - C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
    "C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:720
  - - C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
      "C:\Users\Admin\AppData\Local\Temp\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:2148

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

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Downloads

C:\Users\Admin\AppData\Local\804f1d4d-8ced-4b42-b44b-624a22a2324a\32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe

Filesize
807KB

MD5
f22a07f566c981eb20ff0b4919acc695

SHA1
8885990f31137750ca6cf4a4ef90b36942f6f890

SHA256
32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea

SHA512
7dc4983c0bc68bcce53c8420bb4c049e2cab07d509a0ca088f9d0c1e4803ed2c20f90a985f55564ce51edf8a455b6be4f62f199ec3462bff8343d57f1f642bff

Download Submit
memory/720-14-0x0000000001D80000-0x0000000001E1A000-memory.dmp

Filesize
616KB

Download
memory/2148-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-32-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-28-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-16-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2148-18-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3492-1-0x0000000001D70000-0x0000000001E0E000-memory.dmp

Filesize
632KB

Download
memory/3492-2-0x0000000003840000-0x000000000395B000-memory.dmp

Filesize
1.1MB

Download
memory/4116-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4116-12-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4116-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4116-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4116-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 3492 wrote to memory of 4116	3492	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 3492 wrote to memory of 4116	3492	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 3492 wrote to memory of 4116	3492	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 3492 wrote to memory of 4116	3492	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 3492 wrote to memory of 4116	3492	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 3492 wrote to memory of 4116	3492	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 3492 wrote to memory of 4116	3492	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 3492 wrote to memory of 4116	3492	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 3492 wrote to memory of 4116	3492	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 3492 wrote to memory of 4116	3492	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 4116 wrote to memory of 4508	4116	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	icacls.exe
PID 4116 wrote to memory of 4508	4116	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	icacls.exe
PID 4116 wrote to memory of 4508	4116	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	icacls.exe
PID 4116 wrote to memory of 720	4116	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 4116 wrote to memory of 720	4116	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 4116 wrote to memory of 720	4116	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 720 wrote to memory of 2148	720	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 720 wrote to memory of 2148	720	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 720 wrote to memory of 2148	720	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 720 wrote to memory of 2148	720	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 720 wrote to memory of 2148	720	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 720 wrote to memory of 2148	720	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 720 wrote to memory of 2148	720	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 720 wrote to memory of 2148	720	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 720 wrote to memory of 2148	720	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe
PID 720 wrote to memory of 2148	720	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe	32ca82ed5bd55e19ba8bbfe9381b52c3b6c0231ccd468bf52582e14c17e001ea.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads