djvu | 698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef

General

Target

698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe
Size

726KB
MD5

6933216344407161f027609c4691eebe
SHA1

f6340f7e8f7faa06d5d7c19e2265dc1cf76ecc72
SHA256

698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef
SHA512

25774e91a2bf5b1db24d21406921eeb84f83d649a1149117e2e1fed2a307c632be1c423650032ee61a2562b9bc43c1239e15e8928ace521df3724ef5d145d318
SSDEEP

12288:akv0KiOKMYNg2i2xX+zGygSMvg1rk2DuRoAse/pO3DGuD:akv0POK77hxOzISMvQA2ixO3DtD

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.ttrd
offline_id
9qw1wmu1ty4GEiHZdxilHPjCyX6ENKTotjt6MIt1
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-4vhLUot4Kz 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: 0801JOsie

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral1/memory/3672-2-0x00000000043E0000-0x00000000044FB000-memory.dmp	family_djvu
behavioral1/memory/4100-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4100-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4100-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4100-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4100-16-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4540-20-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4540-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral1/memory/4540-23-0x0000000000400000-0x0000000000537000-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	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3452	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\\0034617c-1206-4c3c-9063-755d9d952902\\698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe\" --AutoStart"	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.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
35	api.2ip.ua
36	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3672 set thread context of 4100	3672	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	92
PID 2232 set thread context of 4540	2232	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	99

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
2088	4540	WerFault.exe	99

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4100	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe
4100	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3672 wrote to memory of 4100	3672	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	92
PID 3672 wrote to memory of 4100	3672	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	92
PID 3672 wrote to memory of 4100	3672	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	92
PID 3672 wrote to memory of 4100	3672	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	92
PID 3672 wrote to memory of 4100	3672	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	92
PID 3672 wrote to memory of 4100	3672	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	92
PID 3672 wrote to memory of 4100	3672	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	92
PID 3672 wrote to memory of 4100	3672	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	92
PID 3672 wrote to memory of 4100	3672	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	92
PID 3672 wrote to memory of 4100	3672	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	92
PID 4100 wrote to memory of 3452	4100	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	93
PID 4100 wrote to memory of 3452	4100	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	93
PID 4100 wrote to memory of 3452	4100	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	93
PID 4100 wrote to memory of 2232	4100	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	95
PID 4100 wrote to memory of 2232	4100	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	95
PID 4100 wrote to memory of 2232	4100	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	95
PID 2232 wrote to memory of 4540	2232	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	99
PID 2232 wrote to memory of 4540	2232	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	99
PID 2232 wrote to memory of 4540	2232	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	99
PID 2232 wrote to memory of 4540	2232	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	99
PID 2232 wrote to memory of 4540	2232	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	99
PID 2232 wrote to memory of 4540	2232	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	99
PID 2232 wrote to memory of 4540	2232	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	99
PID 2232 wrote to memory of 4540	2232	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	99
PID 2232 wrote to memory of 4540	2232	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	99
PID 2232 wrote to memory of 4540	2232	698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe	99

C:\Users\Admin\AppData\Local\Temp\698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe
"C:\Users\Admin\AppData\Local\Temp\698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3672
- C:\Users\Admin\AppData\Local\Temp\698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe
  "C:\Users\Admin\AppData\Local\Temp\698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4100
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\0034617c-1206-4c3c-9063-755d9d952902" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    PID:3452
- - C:\Users\Admin\AppData\Local\Temp\698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe
    "C:\Users\Admin\AppData\Local\Temp\698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:2232
  - - C:\Users\Admin\AppData\Local\Temp\698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe
      "C:\Users\Admin\AppData\Local\Temp\698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      PID:4540
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4540 -s 232
        5⤵
        Program crash
        
        PID:2088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 4540 -ip 4540
1⤵
PID:1808

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\0034617c-1206-4c3c-9063-755d9d952902\698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef.exe

Filesize
726KB

MD5
6933216344407161f027609c4691eebe

SHA1
f6340f7e8f7faa06d5d7c19e2265dc1cf76ecc72

SHA256
698e3352ae6899664e3173e833e32d45b7953666658936c4c8c6045aec0f0aef

SHA512
25774e91a2bf5b1db24d21406921eeb84f83d649a1149117e2e1fed2a307c632be1c423650032ee61a2562b9bc43c1239e15e8928ace521df3724ef5d145d318

Download Submit
memory/2232-18-0x0000000004170000-0x0000000004211000-memory.dmp

Filesize
644KB

Download
memory/3672-1-0x0000000004210000-0x00000000042AC000-memory.dmp

Filesize
624KB

Download
memory/3672-2-0x00000000043E0000-0x00000000044FB000-memory.dmp

Filesize
1.1MB

Download
memory/4100-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4100-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4100-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4100-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4100-16-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4540-20-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4540-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4540-23-0x0000000000400000-0x0000000000537000-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