djvu | 3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67

General

Target

3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe
Size

686KB
MD5

d8ed6466110ed55d3feb9d12e699f6cf
SHA1

dea2f731c56891a6cf8753ab014f2f22ce6d2453
SHA256

3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67
SHA512

3cec534a2a4127657edc045e5b2f54ab153318c398ce8746413412c5c4dd52bebb53ceb72fa593d35959bc10745d55a94b6efd71adb9e2ac86adb328d0e9c2ff
SSDEEP

12288:aJIHREjdfq1M7CPF26qHEiF4rmuHrMPL0sOsFB7a/Sx7Gwe71:aJCKS1YF4rmuIz0GFw/SdeR

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.ppvt
offline_id
phJtdHo970vyx7vwlYG00OakDR75RuJz7NXDArt1
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-eyUsqpKbFl 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: 0817JOsie

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral1/memory/5024-2-0x0000000002630000-0x000000000274B000-memory.dmp	family_djvu
behavioral1/memory/2276-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2276-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2276-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2276-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2276-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2848-25-0x0000000000400000-0x0000000000537000-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-1-5-21-1114462139-3090196418-29517368-1000\Control Panel\International\Geo\Nation	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4960	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-1-5-21-1114462139-3090196418-29517368-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\abec4d29-f4c1-4ee4-be16-175ab48ad9ba\\3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe\" --AutoStart"	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.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
14	api.2ip.ua
13	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5024 set thread context of 2276	5024	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	87
PID 4564 set thread context of 2848	4564	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	91

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
1284	2848	WerFault.exe	91

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2276	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe
2276	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 5024 wrote to memory of 2276	5024	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	87
PID 5024 wrote to memory of 2276	5024	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	87
PID 5024 wrote to memory of 2276	5024	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	87
PID 5024 wrote to memory of 2276	5024	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	87
PID 5024 wrote to memory of 2276	5024	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	87
PID 5024 wrote to memory of 2276	5024	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	87
PID 5024 wrote to memory of 2276	5024	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	87
PID 5024 wrote to memory of 2276	5024	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	87
PID 5024 wrote to memory of 2276	5024	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	87
PID 5024 wrote to memory of 2276	5024	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	87
PID 2276 wrote to memory of 4960	2276	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	88
PID 2276 wrote to memory of 4960	2276	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	88
PID 2276 wrote to memory of 4960	2276	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	88
PID 2276 wrote to memory of 4564	2276	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	89
PID 2276 wrote to memory of 4564	2276	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	89
PID 2276 wrote to memory of 4564	2276	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	89
PID 4564 wrote to memory of 2848	4564	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	91
PID 4564 wrote to memory of 2848	4564	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	91
PID 4564 wrote to memory of 2848	4564	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	91
PID 4564 wrote to memory of 2848	4564	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	91
PID 4564 wrote to memory of 2848	4564	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	91
PID 4564 wrote to memory of 2848	4564	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	91
PID 4564 wrote to memory of 2848	4564	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	91
PID 4564 wrote to memory of 2848	4564	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	91
PID 4564 wrote to memory of 2848	4564	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	91
PID 4564 wrote to memory of 2848	4564	3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe	91

C:\Users\Admin\AppData\Local\Temp\3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe
"C:\Users\Admin\AppData\Local\Temp\3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5024
- C:\Users\Admin\AppData\Local\Temp\3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe
  "C:\Users\Admin\AppData\Local\Temp\3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2276
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\abec4d29-f4c1-4ee4-be16-175ab48ad9ba" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:4960
- - C:\Users\Admin\AppData\Local\Temp\3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe
    "C:\Users\Admin\AppData\Local\Temp\3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4564
  - - C:\Users\Admin\AppData\Local\Temp\3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe
      "C:\Users\Admin\AppData\Local\Temp\3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      PID:2848
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2848 -s 568
        5⤵
        Program crash
        
        PID:1284

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 2848 -ip 2848
1⤵
PID:4788

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\abec4d29-f4c1-4ee4-be16-175ab48ad9ba\3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67.exe

Filesize
686KB

MD5
d8ed6466110ed55d3feb9d12e699f6cf

SHA1
dea2f731c56891a6cf8753ab014f2f22ce6d2453

SHA256
3391840fcc69c3123e26f09b398a6c3707ae6b0fb60880a505a2d63c32de2f67

SHA512
3cec534a2a4127657edc045e5b2f54ab153318c398ce8746413412c5c4dd52bebb53ceb72fa593d35959bc10745d55a94b6efd71adb9e2ac86adb328d0e9c2ff

Download Submit
memory/2276-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2276-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2276-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2276-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2276-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2848-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4564-20-0x0000000000AE0000-0x0000000000B7B000-memory.dmp

Filesize
620KB

Download
memory/5024-1-0x0000000002580000-0x0000000002618000-memory.dmp

Filesize
608KB

Download
memory/5024-2-0x0000000002630000-0x000000000274B000-memory.dmp

Filesize
1.1MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads