djvu | 0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623

General

Target

JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe
Size

761KB
MD5

6daa983bb2bfea6e95e74813acc77831
SHA1

25001b7888fb53c7dcae076ef1ad55a62e4905de
SHA256

0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623
SHA512

837b6db7cefe98ec1921a586bd861356ae99dcaf5cfa3e70296b648eff69a01d558c9dfaf89381e1214828b0412f7dbe3198e14b6cb88623844d1847c2fec4f7
SSDEEP

12288:/opjWm81ag7yA58dHyaOpwbXI3w2DoAXkAQeqqgfw/:gjWmsNGkCShpwLIAlA5qqgfw/

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.msjd
offline_id
Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.org/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/4712-2-0x00000000022A0000-0x00000000023BB000-memory.dmp	family_djvu
behavioral2/memory/4012-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4012-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4012-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4012-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4012-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3656-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3656-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3656-25-0x0000000000400000-0x0000000000537000-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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3416	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\d568949a-35de-40cb-97f0-00b563ca612e\\JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe\" --AutoStart"	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.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
10	api.2ip.ua
14	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4712 set thread context of 4012	4712	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	82
PID 4740 set thread context of 3656	4740	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	86

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
1700	3656	WerFault.exe	86

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	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4012	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe
4012	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 4012	4712	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	82
PID 4712 wrote to memory of 4012	4712	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	82
PID 4712 wrote to memory of 4012	4712	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	82
PID 4712 wrote to memory of 4012	4712	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	82
PID 4712 wrote to memory of 4012	4712	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	82
PID 4712 wrote to memory of 4012	4712	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	82
PID 4712 wrote to memory of 4012	4712	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	82
PID 4712 wrote to memory of 4012	4712	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	82
PID 4712 wrote to memory of 4012	4712	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	82
PID 4712 wrote to memory of 4012	4712	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	82
PID 4012 wrote to memory of 3416	4012	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	83
PID 4012 wrote to memory of 3416	4012	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	83
PID 4012 wrote to memory of 3416	4012	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	83
PID 4012 wrote to memory of 4740	4012	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	84
PID 4012 wrote to memory of 4740	4012	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	84
PID 4012 wrote to memory of 4740	4012	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	84
PID 4740 wrote to memory of 3656	4740	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	86
PID 4740 wrote to memory of 3656	4740	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	86
PID 4740 wrote to memory of 3656	4740	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	86
PID 4740 wrote to memory of 3656	4740	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	86
PID 4740 wrote to memory of 3656	4740	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	86
PID 4740 wrote to memory of 3656	4740	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	86
PID 4740 wrote to memory of 3656	4740	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	86
PID 4740 wrote to memory of 3656	4740	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	86
PID 4740 wrote to memory of 3656	4740	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	86
PID 4740 wrote to memory of 3656	4740	JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4712
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.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:4012
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\d568949a-35de-40cb-97f0-00b563ca612e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3416
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4740
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:3656
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3656 -s 584
        5⤵
        Program crash
        
        PID:1700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3656 -ip 3656
1⤵
PID:5020

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

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Downloads

C:\Users\Admin\AppData\Local\d568949a-35de-40cb-97f0-00b563ca612e\JaffaCakes118_0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623.exe

Filesize
761KB

MD5
6daa983bb2bfea6e95e74813acc77831

SHA1
25001b7888fb53c7dcae076ef1ad55a62e4905de

SHA256
0a82254aaba9e3b35323d8d34e647aaf268db3360221f3c406de13f798afb623

SHA512
837b6db7cefe98ec1921a586bd861356ae99dcaf5cfa3e70296b648eff69a01d558c9dfaf89381e1214828b0412f7dbe3198e14b6cb88623844d1847c2fec4f7

Download Submit
memory/3656-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3656-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3656-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4012-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4012-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4012-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4012-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4012-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4712-2-0x00000000022A0000-0x00000000023BB000-memory.dmp

Filesize
1.1MB

Download
memory/4712-1-0x0000000002100000-0x0000000002195000-memory.dmp

Filesize
596KB

Download
memory/4740-19-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download
memory/4740-22-0x0000000000400000-0x00000000004C9000-memory.dmp

Filesize
804KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads