djvu | 613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015

General

Target
613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe
Size 831KB
Sample220408-kjp27sagh5
SHA256 613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015
MD5 e8002eddcd04095088f4e3ca50683d9b
SHA1 ce475aa8c7efafe10d27e57a183a3bda63eff5e9
SHA512 19d3153eb025d2c882813c740a378f33b9a4107b6b640321e3b573cd1f801439c1a4470766760dc48f11d2cf8e9510a9e2be657ca9aa4317d3c239ea4bbe2ef9
MD5 SHA1 SHA512

Score

10^/10

djvu ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes

extension
.tuid
offline_id
LgcOIftV0dQfFBQStVNfb8BhHy8tHRPvXwSiFwt1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.org/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-FglTTmgzZT 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: 0440tOjkfd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 4 IoCs

resource	yara_rule
behavioral2/memory/3228-125-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3228-126-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3228-128-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5044-129-0x0000000002210000-0x000000000232B000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5044 set thread context of 3228	5044	613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe	81

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5116	3228	WerFault.exe	81

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5044 wrote to memory of 3228	5044	613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe	81
PID 5044 wrote to memory of 3228	5044	613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe	81
PID 5044 wrote to memory of 3228	5044	613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe	81
PID 5044 wrote to memory of 3228	5044	613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe	81
PID 5044 wrote to memory of 3228	5044	613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe	81
PID 5044 wrote to memory of 3228	5044	613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe	81
PID 5044 wrote to memory of 3228	5044	613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe	81
PID 5044 wrote to memory of 3228	5044	613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe	81
PID 5044 wrote to memory of 3228	5044	613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe	81
PID 5044 wrote to memory of 3228	5044	613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe	81

C:\Users\Admin\AppData\Local\Temp\613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe
"C:\Users\Admin\AppData\Local\Temp\613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5044
- C:\Users\Admin\AppData\Local\Temp\613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe
  "C:\Users\Admin\AppData\Local\Temp\613535567a37a3e04049e87d3c7001e34d559965fa890e06ea537bf7e24c5015.exe"
  2⤵
  PID:3228
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3228 -s 536
    3⤵
    - Program crash
    PID:5116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3228 -ip 3228
1⤵
PID:2328

Network

MITRE ATT&CK Matrix

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Downloads

memory/3228-125-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/3228-126-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/3228-128-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/5044-127-0x0000000002175000-0x0000000002207000-memory.dmp

Download

memory/5044-129-0x0000000002210000-0x000000000232B000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads