djvu | ff5c6b330fd452c622cd028cfdbdf59f86c56cbbfeb706f4d618e5011cc6800e

General

Target

72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe
Size

761KB
MD5

da184a04f7503d1987463e08a06c5adb
SHA1

cea34f659783ff34be193ec20910607484730e33
SHA256

72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece
SHA512

8a96f9b412e39ca148a07b9991f24d9302470bb37e7072e9dca0149eaff41afab3ac5817cda73759d613f0a48f8d42be5b48877a7cb0ff7a3fa0fae1b5d2556b
SSDEEP

12288:mMWT7I+n5prgwHc+URE/WRXxf6+wAosKGmY+DQmcMelXmJYW9lUBxwStzn3nDufC:7r+LsQQN2BrcPIew+0SlnTujFiEBaWU

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.ghas
offline_id
miqhSGmGE63yWs53FTz0fnp8eCARpnaYE3O3p2t1
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-0SLhZxAjRX 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: 0445JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/220-2-0x0000000000A30000-0x0000000000B4B000-memory.dmp	family_djvu
behavioral2/memory/1268-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1268-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1268-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1268-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1268-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3032-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3032-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3032-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Djvu family
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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4520	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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\0a06b7f9-0f0f-494e-8107-53a02638b2c8\\72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe\" --AutoStart"	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.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
6	api.2ip.ua
7	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 220 set thread context of 1268	220	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	84
PID 4692 set thread context of 3032	4692	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	88

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
4956	3032	WerFault.exe	88

System Location Discovery: System Language Discovery 1 TTPs 5 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	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1268	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe
1268	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 220 wrote to memory of 1268	220	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	84
PID 220 wrote to memory of 1268	220	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	84
PID 220 wrote to memory of 1268	220	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	84
PID 220 wrote to memory of 1268	220	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	84
PID 220 wrote to memory of 1268	220	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	84
PID 220 wrote to memory of 1268	220	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	84
PID 220 wrote to memory of 1268	220	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	84
PID 220 wrote to memory of 1268	220	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	84
PID 220 wrote to memory of 1268	220	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	84
PID 220 wrote to memory of 1268	220	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	84
PID 1268 wrote to memory of 4520	1268	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	85
PID 1268 wrote to memory of 4520	1268	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	85
PID 1268 wrote to memory of 4520	1268	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	85
PID 1268 wrote to memory of 4692	1268	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	86
PID 1268 wrote to memory of 4692	1268	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	86
PID 1268 wrote to memory of 4692	1268	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	86
PID 4692 wrote to memory of 3032	4692	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	88
PID 4692 wrote to memory of 3032	4692	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	88
PID 4692 wrote to memory of 3032	4692	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	88
PID 4692 wrote to memory of 3032	4692	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	88
PID 4692 wrote to memory of 3032	4692	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	88
PID 4692 wrote to memory of 3032	4692	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	88
PID 4692 wrote to memory of 3032	4692	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	88
PID 4692 wrote to memory of 3032	4692	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	88
PID 4692 wrote to memory of 3032	4692	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	88
PID 4692 wrote to memory of 3032	4692	72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe	88

C:\Users\Admin\AppData\Local\Temp\72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe
"C:\Users\Admin\AppData\Local\Temp\72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:220
- C:\Users\Admin\AppData\Local\Temp\72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe
  "C:\Users\Admin\AppData\Local\Temp\72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1268
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\0a06b7f9-0f0f-494e-8107-53a02638b2c8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4520
- - C:\Users\Admin\AppData\Local\Temp\72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe
    "C:\Users\Admin\AppData\Local\Temp\72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4692
  - - C:\Users\Admin\AppData\Local\Temp\72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe
      "C:\Users\Admin\AppData\Local\Temp\72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:3032
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 568
        5⤵
        Program crash
        
        PID:4956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3032 -ip 3032
1⤵
PID:2312

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\0a06b7f9-0f0f-494e-8107-53a02638b2c8\72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece.exe

Filesize
761KB

MD5
da184a04f7503d1987463e08a06c5adb

SHA1
cea34f659783ff34be193ec20910607484730e33

SHA256
72922c3259f8c0f4241724de394665dad64c5ded24d22684ff6e09b39e510ece

SHA512
8a96f9b412e39ca148a07b9991f24d9302470bb37e7072e9dca0149eaff41afab3ac5817cda73759d613f0a48f8d42be5b48877a7cb0ff7a3fa0fae1b5d2556b

Download Submit
memory/220-1-0x0000000000990000-0x0000000000A2C000-memory.dmp

Filesize
624KB

Download
memory/220-2-0x0000000000A30000-0x0000000000B4B000-memory.dmp

Filesize
1.1MB

Download
memory/1268-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1268-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1268-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1268-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1268-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3032-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3032-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3032-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4692-19-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/4692-25-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads