djvu | 5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924

General

Target

5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe
Size

719KB
MD5

e26fc9d369da2fc8d6ce72265174dcad
SHA1

2ff54dd52864968d09500f92ff10370d3eea25ca
SHA256

5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924
SHA512

168d985cd83f42e3673ec31df74685860e81a2957668bd85e763ad851565f7b384f15e22fe803e187e9d10690a06ecc4cc750022257d902e1e51855b273a1de7
SSDEEP

12288:BfrBn4/80jG1bxfkQsWF9J1Gw4AnCKE94RArHbVZdc8r8JKSkiX8:Bjt4/h2fkQJlB4AnCKJeHRbc8rEGK8

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test1/get.php

Attributes

extension
.ptqw
offline_id
43WPLl8Cnh3dZoiWhf8tP8Q9CrMBVUL2dwHB2Rt1
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-dHFDYXqlkk 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: 0806ASUDr

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 10 IoCs

resource	yara_rule
behavioral1/memory/3156-2-0x0000000004B30000-0x0000000004C4B000-memory.dmp	family_djvu
behavioral1/memory/4888-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4888-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4888-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4888-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4888-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4888-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2840-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2840-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2840-26-0x0000000000400000-0x0000000000537000-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-1-5-21-1574508946-349927670-1185736483-1000\Control Panel\International\Geo\Nation	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2768	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-1-5-21-1574508946-349927670-1185736483-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\ab33b209-408a-40fb-ad5c-e61a9caee1a3\\5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe\" --AutoStart"	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.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
1	api.2ip.ua
2	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3156 set thread context of 4888	3156	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	85
PID 2416 set thread context of 2840	2416	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.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
1792	2840	WerFault.exe	91

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4888	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe
4888	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3156 wrote to memory of 4888	3156	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	85
PID 3156 wrote to memory of 4888	3156	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	85
PID 3156 wrote to memory of 4888	3156	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	85
PID 3156 wrote to memory of 4888	3156	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	85
PID 3156 wrote to memory of 4888	3156	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	85
PID 3156 wrote to memory of 4888	3156	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	85
PID 3156 wrote to memory of 4888	3156	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	85
PID 3156 wrote to memory of 4888	3156	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	85
PID 3156 wrote to memory of 4888	3156	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	85
PID 3156 wrote to memory of 4888	3156	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	85
PID 4888 wrote to memory of 2768	4888	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	86
PID 4888 wrote to memory of 2768	4888	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	86
PID 4888 wrote to memory of 2768	4888	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	86
PID 4888 wrote to memory of 2416	4888	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	89
PID 4888 wrote to memory of 2416	4888	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	89
PID 4888 wrote to memory of 2416	4888	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	89
PID 2416 wrote to memory of 2840	2416	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	91
PID 2416 wrote to memory of 2840	2416	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	91
PID 2416 wrote to memory of 2840	2416	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	91
PID 2416 wrote to memory of 2840	2416	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	91
PID 2416 wrote to memory of 2840	2416	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	91
PID 2416 wrote to memory of 2840	2416	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	91
PID 2416 wrote to memory of 2840	2416	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	91
PID 2416 wrote to memory of 2840	2416	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	91
PID 2416 wrote to memory of 2840	2416	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	91
PID 2416 wrote to memory of 2840	2416	5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe	91

C:\Users\Admin\AppData\Local\Temp\5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe
"C:\Users\Admin\AppData\Local\Temp\5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3156
- C:\Users\Admin\AppData\Local\Temp\5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe
  "C:\Users\Admin\AppData\Local\Temp\5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4888
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\ab33b209-408a-40fb-ad5c-e61a9caee1a3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:2768
- - C:\Users\Admin\AppData\Local\Temp\5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe
    "C:\Users\Admin\AppData\Local\Temp\5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2416
  - - C:\Users\Admin\AppData\Local\Temp\5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe
      "C:\Users\Admin\AppData\Local\Temp\5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      PID:2840
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2840 -s 568
        5⤵
        Program crash
        
        PID:1792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2840 -ip 2840
1⤵
PID:1864

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\ab33b209-408a-40fb-ad5c-e61a9caee1a3\5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924.exe

Filesize
719KB

MD5
e26fc9d369da2fc8d6ce72265174dcad

SHA1
2ff54dd52864968d09500f92ff10370d3eea25ca

SHA256
5225a059d2bace7021b754ca1c1739ced806003010f5d9035ac878b3cd6b1924

SHA512
168d985cd83f42e3673ec31df74685860e81a2957668bd85e763ad851565f7b384f15e22fe803e187e9d10690a06ecc4cc750022257d902e1e51855b273a1de7

Download Submit
memory/2416-21-0x00000000048E0000-0x000000000497F000-memory.dmp

Filesize
636KB

Download
memory/2840-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2840-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2840-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3156-2-0x0000000004B30000-0x0000000004C4B000-memory.dmp

Filesize
1.1MB

Download
memory/3156-1-0x0000000004A30000-0x0000000004ACD000-memory.dmp

Filesize
628KB

Download
memory/4888-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4888-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4888-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4888-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4888-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4888-19-0x0000000000400000-0x0000000000537000-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