djvu | 2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff

General

Target

JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
Size

767KB
MD5

a166eb129533ff066100521c83967fee
SHA1

0aea2d705525c016d06231981dd40615962472b2
SHA256

2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff
SHA512

9b6c86d829a8c717323e410edf47a16d2ad12f73955f439686ccf84294b8824ee6ab225ce9beb68f9b7533cd5dc538da68f616df369a29b8b22f0b23866bf6f1
SSDEEP

12288:qK7oNk9C8phXtqJ0gkcB4dqbuWYtGy/oPkK5d4qurCUbFKACSB9RGvgq:POGC8bBgzB4dqLi3oPBhUb0ACeRwg

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
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rsa_pubkey.plain

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/1964-2-0x0000000002250000-0x000000000236B000-memory.dmp	family_djvu
behavioral2/memory/1588-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1588-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1588-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1588-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1588-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3444-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3444-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3444-24-0x0000000000400000-0x0000000000537000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4272	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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\e70d96cf-0042-40b3-aa2f-805c507f0341\\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe\" --AutoStart"	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.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
11	api.2ip.ua
12	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1964 set thread context of 1588	1964	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	82
PID 4252 set thread context of 3444	4252	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.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
2696	3444	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_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1588	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
1588	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 1588	1964	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	82
PID 1964 wrote to memory of 1588	1964	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	82
PID 1964 wrote to memory of 1588	1964	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	82
PID 1964 wrote to memory of 1588	1964	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	82
PID 1964 wrote to memory of 1588	1964	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	82
PID 1964 wrote to memory of 1588	1964	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	82
PID 1964 wrote to memory of 1588	1964	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	82
PID 1964 wrote to memory of 1588	1964	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	82
PID 1964 wrote to memory of 1588	1964	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	82
PID 1964 wrote to memory of 1588	1964	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	82
PID 1588 wrote to memory of 4272	1588	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	83
PID 1588 wrote to memory of 4272	1588	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	83
PID 1588 wrote to memory of 4272	1588	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	83
PID 1588 wrote to memory of 4252	1588	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	84
PID 1588 wrote to memory of 4252	1588	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	84
PID 1588 wrote to memory of 4252	1588	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	84
PID 4252 wrote to memory of 3444	4252	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	86
PID 4252 wrote to memory of 3444	4252	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	86
PID 4252 wrote to memory of 3444	4252	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	86
PID 4252 wrote to memory of 3444	4252	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	86
PID 4252 wrote to memory of 3444	4252	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	86
PID 4252 wrote to memory of 3444	4252	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	86
PID 4252 wrote to memory of 3444	4252	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	86
PID 4252 wrote to memory of 3444	4252	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	86
PID 4252 wrote to memory of 3444	4252	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	86
PID 4252 wrote to memory of 3444	4252	JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.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:1588
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\e70d96cf-0042-40b3-aa2f-805c507f0341" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4272
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4252
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:3444
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 568
        5⤵
        Program crash
        
        PID:2696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3444 -ip 3444
1⤵
PID:1648

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\e70d96cf-0042-40b3-aa2f-805c507f0341\JaffaCakes118_2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff.exe

Filesize
767KB

MD5
a166eb129533ff066100521c83967fee

SHA1
0aea2d705525c016d06231981dd40615962472b2

SHA256
2608cca1d1e41da46b57bb980872800892f8fee2bc9d3ebfb8df5ec8a9a7d2ff

SHA512
9b6c86d829a8c717323e410edf47a16d2ad12f73955f439686ccf84294b8824ee6ab225ce9beb68f9b7533cd5dc538da68f616df369a29b8b22f0b23866bf6f1

Download Submit
memory/1588-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1588-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1588-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1588-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1588-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1964-1-0x00000000021B0000-0x0000000002247000-memory.dmp

Filesize
604KB

Download
memory/1964-2-0x0000000002250000-0x000000000236B000-memory.dmp

Filesize
1.1MB

Download
memory/3444-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3444-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3444-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4252-19-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4252-25-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads