djvu | be65a8d884dbb5c292c2ae94591cc6c86909bcd7ddb42588932afaf9ce15728e

General

Target
setup.exe
Size 742KB
Sample240729-2yy24avdpp
SHA256 be65a8d884dbb5c292c2ae94591cc6c86909bcd7ddb42588932afaf9ce15728e
MD5 13fd90197ba55324bd01b9fa97f5295a
SHA1 313ac91a6ea6e75c0fe75f65d1254905491b59f6
SHA512 a2d7a2b666f712b57f1cbed89598ad783589b93d4e0b67ccbe5d8ac4f8b3faf18c704a5606953319090dbf974f5cd9bc600ee3b7695c47cc92db5d9a8227f6fb
SSDEEP 12288:hx2+AAPYnxYN43oEFdodmbI+9KvWzFk0QCsX5D7rIOpw9:hx2MYnxsSDd4L+9KOzWdCI5D7EOa9
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

djvu discovery ransomware

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test2/get.php

Attributes

extension
.qapo
offline_id
VrBq0iLIRHjQLgVRLsN1WK8yFkTCRDCCvPkwnHt1
payload_url
http://uaery.top/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-zUVSNg4KRZ 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: 0663Iopd

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 4 IoCs

resource	yara_rule
behavioral1/memory/1244-2-0x00000000023B0000-0x00000000024CB000-memory.dmp	family_djvu
behavioral1/memory/2300-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2300-9-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/2300-7-0x0000000000400000-0x0000000000537000-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 1244 set thread context of 2300	1244	setup.exe	30

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1916	2300	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	setup.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	setup.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 1244 wrote to memory of 2300	1244	setup.exe	30
PID 2300 wrote to memory of 1916	2300	setup.exe	31
PID 2300 wrote to memory of 1916	2300	setup.exe	31
PID 2300 wrote to memory of 1916	2300	setup.exe	31
PID 2300 wrote to memory of 1916	2300	setup.exe	31
PID 2300 wrote to memory of 1916	2300	setup.exe	31
PID 2300 wrote to memory of 1916	2300	setup.exe	31
PID 2300 wrote to memory of 1916	2300	setup.exe	31

C:\Users\Admin\AppData\Local\Temp\setup.exe
"C:\Users\Admin\AppData\Local\Temp\setup.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1244
- C:\Users\Admin\AppData\Local\Temp\setup.exe
  "C:\Users\Admin\AppData\Local\Temp\setup.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2300 -s 264
    3⤵
    - Program crash
    PID:1916

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1244-0-0x0000000000540000-0x00000000005D2000-memory.dmp

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memory/1244-1-0x0000000000540000-0x00000000005D2000-memory.dmp

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memory/1244-2-0x00000000023B0000-0x00000000024CB000-memory.dmp

Download

memory/2300-5-0x0000000000400000-0x0000000000537000-memory.dmp

Download

memory/2300-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Download

memory/2300-9-0x0000000000400000-0x0000000000537000-memory.dmp

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memory/2300-7-0x0000000000400000-0x0000000000537000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads