djvu | dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375

General

Target

dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe
Size

817KB
MD5

c082d1ba8c66d2c5adee770992c8c249
SHA1

b32b610c10181cd4dad3c40e7a86c709f6127fc2
SHA256

dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375
SHA512

ceb59c18fff468974b2c4f35922459d8be91d760368fbda9e1e6d9e485e53848a6745db0a9375e7be13d16f7362cf21f87e256be1d9cae31233c88726199e194
SSDEEP

12288:YBDAUXwqzvevScTOFyqOEhz3txgdEGtKGjRQR/q18co3jqCHJT:VWzWvS7FNOEJ3Mdt8GQpcuJ

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/lancer/get.php

Attributes

extension
.azop
offline_id
GQ9DjFmWFDqpsyzsOnaxE1Xr4MPL1dG4vPfPDNt1
payload_url
http://colisumy.com/dl/build2.exe

http://zexeq.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. You can get and look video overview decrypt tool: https://we.tl/t-e5pgPH03fe Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. 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: 0792

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 10 IoCs

resource	yara_rule
behavioral2/memory/2228-2-0x0000000004400000-0x000000000451B000-memory.dmp	family_djvu
behavioral2/memory/4944-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4944-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4944-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4944-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4944-18-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4868-21-0x00000000041C0000-0x0000000004260000-memory.dmp	family_djvu
behavioral2/memory/3540-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3540-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3540-26-0x0000000000400000-0x0000000000537000-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-1-5-21-919254492-3979293997-764407192-1000\Control Panel\International\Geo\Nation	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3048	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-1-5-21-919254492-3979293997-764407192-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\0baddac9-92f5-48bd-a09d-3190c7b12dce\\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe\" --AutoStart"	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.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
22	api.2ip.ua
23	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2228 set thread context of 4944	2228	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	85
PID 4868 set thread context of 3540	4868	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	93

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
3408	3540	WerFault.exe	93

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4944	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe
4944	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 4944	2228	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	85
PID 2228 wrote to memory of 4944	2228	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	85
PID 2228 wrote to memory of 4944	2228	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	85
PID 2228 wrote to memory of 4944	2228	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	85
PID 2228 wrote to memory of 4944	2228	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	85
PID 2228 wrote to memory of 4944	2228	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	85
PID 2228 wrote to memory of 4944	2228	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	85
PID 2228 wrote to memory of 4944	2228	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	85
PID 2228 wrote to memory of 4944	2228	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	85
PID 2228 wrote to memory of 4944	2228	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	85
PID 4944 wrote to memory of 3048	4944	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	88
PID 4944 wrote to memory of 3048	4944	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	88
PID 4944 wrote to memory of 3048	4944	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	88
PID 4944 wrote to memory of 4868	4944	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	91
PID 4944 wrote to memory of 4868	4944	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	91
PID 4944 wrote to memory of 4868	4944	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	91
PID 4868 wrote to memory of 3540	4868	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	93
PID 4868 wrote to memory of 3540	4868	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	93
PID 4868 wrote to memory of 3540	4868	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	93
PID 4868 wrote to memory of 3540	4868	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	93
PID 4868 wrote to memory of 3540	4868	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	93
PID 4868 wrote to memory of 3540	4868	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	93
PID 4868 wrote to memory of 3540	4868	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	93
PID 4868 wrote to memory of 3540	4868	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	93
PID 4868 wrote to memory of 3540	4868	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	93
PID 4868 wrote to memory of 3540	4868	dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe	93

C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe
"C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe
  "C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4944
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\0baddac9-92f5-48bd-a09d-3190c7b12dce" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:3048
- - C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe
    "C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4868
  - - C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe
      "C:\Users\Admin\AppData\Local\Temp\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      PID:3540
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3540 -s 568
        5⤵
        Program crash
        
        PID:3408

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3540 -ip 3540
1⤵
PID:4768

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

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Downloads

C:\Users\Admin\AppData\Local\0baddac9-92f5-48bd-a09d-3190c7b12dce\dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375.exe

Filesize
817KB

MD5
c082d1ba8c66d2c5adee770992c8c249

SHA1
b32b610c10181cd4dad3c40e7a86c709f6127fc2

SHA256
dc22f70898991db18ea5974191e1509bdb7a10bfc3b02333a4965af6374a0375

SHA512
ceb59c18fff468974b2c4f35922459d8be91d760368fbda9e1e6d9e485e53848a6745db0a9375e7be13d16f7362cf21f87e256be1d9cae31233c88726199e194

Download Submit
memory/2228-1-0x0000000004360000-0x00000000043F6000-memory.dmp

Filesize
600KB

Download
memory/2228-2-0x0000000004400000-0x000000000451B000-memory.dmp

Filesize
1.1MB

Download
memory/3540-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3540-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3540-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4868-21-0x00000000041C0000-0x0000000004260000-memory.dmp

Filesize
640KB

Download
memory/4944-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4944-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4944-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4944-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4944-18-0x0000000000400000-0x0000000000537000-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