djvu | d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c

General

Target
d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe
Size 784KB
Sample220325-kten8aabbn
SHA256 d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c
MD5 4aba8905b03b3b31fbcc8f2e1d27e75f
SHA1 60845a626c8af70a5654aa70adc92b9807fa3de4
SHA512 827da0f702a97f9fbff33b7a842c1c379887ebf9f726ccd830738c82d1072c349b16925245e2c728625a8817766152ed385473c083541ba2b7699773edda2ac9
MD5 SHA1 SHA512

Score

10^/10

djvu ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.kkia
offline_id
dYUDKE4rrBmSPsf8srHMsyP40jle9uyxDDCfdxt1
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-NdDG3HIUZp 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: 0425Jsfkjn

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 4 IoCs

resource	yara_rule
behavioral2/memory/1164-131-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1164-132-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1164-134-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/492-135-0x0000000002400000-0x000000000251B000-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 492 set thread context of 1164	492	d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe	81

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3932	1164	WerFault.exe	81

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 492 wrote to memory of 1164	492	d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe	81
PID 492 wrote to memory of 1164	492	d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe	81
PID 492 wrote to memory of 1164	492	d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe	81
PID 492 wrote to memory of 1164	492	d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe	81
PID 492 wrote to memory of 1164	492	d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe	81
PID 492 wrote to memory of 1164	492	d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe	81
PID 492 wrote to memory of 1164	492	d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe	81
PID 492 wrote to memory of 1164	492	d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe	81
PID 492 wrote to memory of 1164	492	d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe	81
PID 492 wrote to memory of 1164	492	d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe	81

C:\Users\Admin\AppData\Local\Temp\d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe
"C:\Users\Admin\AppData\Local\Temp\d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:492
- C:\Users\Admin\AppData\Local\Temp\d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe
  "C:\Users\Admin\AppData\Local\Temp\d3ca0ef14e8dc45497faba304acf842bb2f2913ca2108600ee2771f9e9a24f9c.exe"
  2⤵
  PID:1164
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1164 -s 536
    3⤵
    - Program crash
    PID:3932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1164 -ip 1164
1⤵
PID:400

Network

MITRE ATT&CK Matrix

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Downloads

memory/492-133-0x0000000002277000-0x0000000002308000-memory.dmp

Download

memory/492-135-0x0000000002400000-0x000000000251B000-memory.dmp

Download

memory/1164-131-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/1164-132-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/1164-134-0x0000000000400000-0x0000000000537000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads