djvu | 57aebfff2dbfd59ea0a63722a0828e91e5b2b069992139135c5274e0239444f5

General

Target

3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe
Size

715KB
MD5

513a3348c98343a4a24d5a2399c8aa48
SHA1

c79d835e844f82d509aa875ff2161e07b3b59222
SHA256

3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867
SHA512

12988d920f136bba8eed2978de9be6057bd7f4f1e53f7a8e534ca4f02b20f4c44713780f56fdc60d87a9d3eceb5ec496e6177024e6444f0e5d48dc1994109427
SSDEEP

12288:TDbvmify3Hib3TffjXJq0cQ9ZvpqItQvk+G1WPGijDS1ysf9oyNt:TPfy3HajLsQ9ZEvk+UoGqDiFbN

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
behavioral2/memory/5012-2-0x00000000026E0000-0x00000000027FB000-memory.dmp	family_djvu
behavioral2/memory/3548-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3548-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3548-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3548-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3548-15-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1120-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1120-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1120-23-0x0000000000400000-0x0000000000537000-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-1-5-21-1873812795-1433807462-1429862679-1000\Control Panel\International\Geo\Nation	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
5112	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-1-5-21-1873812795-1433807462-1429862679-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\3a384d7c-1dda-4e65-9caf-3e8ba009a4e6\\3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe\" --AutoStart"	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.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
34	api.2ip.ua
36	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5012 set thread context of 3548	5012	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	91
PID 3408 set thread context of 1120	3408	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	101

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
564	1120	WerFault.exe	101

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3548	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe
3548	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 5012 wrote to memory of 3548	5012	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	91
PID 5012 wrote to memory of 3548	5012	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	91
PID 5012 wrote to memory of 3548	5012	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	91
PID 5012 wrote to memory of 3548	5012	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	91
PID 5012 wrote to memory of 3548	5012	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	91
PID 5012 wrote to memory of 3548	5012	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	91
PID 5012 wrote to memory of 3548	5012	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	91
PID 5012 wrote to memory of 3548	5012	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	91
PID 5012 wrote to memory of 3548	5012	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	91
PID 5012 wrote to memory of 3548	5012	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	91
PID 3548 wrote to memory of 5112	3548	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	95
PID 3548 wrote to memory of 5112	3548	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	95
PID 3548 wrote to memory of 5112	3548	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	95
PID 3548 wrote to memory of 3408	3548	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	98
PID 3548 wrote to memory of 3408	3548	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	98
PID 3548 wrote to memory of 3408	3548	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	98
PID 3408 wrote to memory of 1120	3408	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	101
PID 3408 wrote to memory of 1120	3408	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	101
PID 3408 wrote to memory of 1120	3408	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	101
PID 3408 wrote to memory of 1120	3408	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	101
PID 3408 wrote to memory of 1120	3408	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	101
PID 3408 wrote to memory of 1120	3408	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	101
PID 3408 wrote to memory of 1120	3408	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	101
PID 3408 wrote to memory of 1120	3408	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	101
PID 3408 wrote to memory of 1120	3408	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	101
PID 3408 wrote to memory of 1120	3408	3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe	101

C:\Users\Admin\AppData\Local\Temp\3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe
"C:\Users\Admin\AppData\Local\Temp\3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Users\Admin\AppData\Local\Temp\3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe
  "C:\Users\Admin\AppData\Local\Temp\3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:3548
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\3a384d7c-1dda-4e65-9caf-3e8ba009a4e6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:5112
- - C:\Users\Admin\AppData\Local\Temp\3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe
    "C:\Users\Admin\AppData\Local\Temp\3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:3408
  - - C:\Users\Admin\AppData\Local\Temp\3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe
      "C:\Users\Admin\AppData\Local\Temp\3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      PID:1120
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1120 -s 568
        5⤵
        Program crash
        
        PID:564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1120 -ip 1120
1⤵
PID:1572

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\3a384d7c-1dda-4e65-9caf-3e8ba009a4e6\3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867.exe

Filesize
715KB

MD5
513a3348c98343a4a24d5a2399c8aa48

SHA1
c79d835e844f82d509aa875ff2161e07b3b59222

SHA256
3eb290b5daed6408d8cbd99d8b3db422ff6a7ee1bf776dd897669bffc607e867

SHA512
12988d920f136bba8eed2978de9be6057bd7f4f1e53f7a8e534ca4f02b20f4c44713780f56fdc60d87a9d3eceb5ec496e6177024e6444f0e5d48dc1994109427

Download Submit
memory/1120-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1120-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1120-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3408-18-0x00000000023C0000-0x0000000002453000-memory.dmp

Filesize
588KB

Download
memory/3548-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3548-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3548-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3548-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3548-15-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5012-1-0x0000000002580000-0x000000000261B000-memory.dmp

Filesize
620KB

Download
memory/5012-2-0x00000000026E0000-0x00000000027FB000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads