djvu | ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315

General

Target
ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe
Size 776KB
Sample220325-kstfzsded7
SHA256 ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315
MD5 0cdda91fbca8ab0cacdaca3bfe81e7fa
SHA1 10c076648a48b103491074847efe5c532349d398
SHA512 38d6378b74ea230d55caa670136279b4fee97723f98074b972f0c54c0b37d9f16eeab8fe5516dee1d2cef4451efa9d891ceed4311628f1ef855741ae2fed96cd
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/3280-131-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3280-132-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3280-134-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4240-135-0x0000000002480000-0x000000000259B000-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 4240 set thread context of 3280	4240	ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe	80

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2220	3280	WerFault.exe	80

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4240 wrote to memory of 3280	4240	ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe	80
PID 4240 wrote to memory of 3280	4240	ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe	80
PID 4240 wrote to memory of 3280	4240	ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe	80
PID 4240 wrote to memory of 3280	4240	ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe	80
PID 4240 wrote to memory of 3280	4240	ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe	80
PID 4240 wrote to memory of 3280	4240	ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe	80
PID 4240 wrote to memory of 3280	4240	ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe	80
PID 4240 wrote to memory of 3280	4240	ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe	80
PID 4240 wrote to memory of 3280	4240	ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe	80
PID 4240 wrote to memory of 3280	4240	ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe	80

C:\Users\Admin\AppData\Local\Temp\ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe
"C:\Users\Admin\AppData\Local\Temp\ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4240
- C:\Users\Admin\AppData\Local\Temp\ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe
  "C:\Users\Admin\AppData\Local\Temp\ab3bfacf38d1544dceacfe2ecd4dc8501182979913adbc56402e874e6d53a315.exe"
  2⤵
  PID:3280
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3280 -s 536
    3⤵
    - Program crash
    PID:2220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3280 -ip 3280
1⤵
PID:1264

Network

MITRE ATT&CK Matrix

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Downloads

memory/3280-131-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/3280-132-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/3280-134-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/4240-133-0x00000000022AC000-0x000000000233E000-memory.dmp

Download

memory/4240-135-0x0000000002480000-0x000000000259B000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads