djvu | 5d78cfec3d53645a049ddf865d760f4430fd8e6b6958821326ee194f927278cb

General

Target

8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
Size

677KB
MD5

8ea72364aef6738debc38a72456ae875
SHA1

67fc11482612c3efda5a7d9111fc0ce8995cb806
SHA256

5d78cfec3d53645a049ddf865d760f4430fd8e6b6958821326ee194f927278cb
SHA512

7c48f28000528a6ca8d481de573dd7317fa201979e17e4dcf29a8eb82e1ec891ef3ca3aefc9a5e38b17beb9b8a716c4fb8c0ab4e698e74c588dcf38e270c810e
SSDEEP

12288:kHKWvRxdYFqtaY6PeiDaO25icixdfA/d5Fd2WHZXCGO73oxzbZei2r:kHK+cgH/GaUcGhinZXCGO73Wzbdq

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://securebiz.org/fhsgtsspen6/get.php

Attributes

extension
.rigd
offline_id
gigF2ELYocnMQz77LhEpSoXvtYp2junk9HZFtJt1
payload_url
http://znpst.top/dl/build2.exe

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

Signatures

Detected Djvu ransomware 9 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1668-2-0x0000000002210000-0x000000000232B000-memory.dmp	family_djvu
behavioral2/memory/548-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/548-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/548-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/548-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/548-19-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2076-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2076-26-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2076-25-0x0000000000400000-0x0000000000537000-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

Processes:

8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

Modifies file permissions 1 TTPs 1 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

icacls.exe

pid process

4824 icacls.exe

pid	process
4824	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\fd741d54-70c6-460c-b4d4-d10dc0034e64\\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe\" --AutoStart"	8ea72364aef6738debc38a72456ae875_JaffaCakes118.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.

Processes:

flow ioc

15 api.2ip.ua
16 api.2ip.ua

flow	ioc
15	api.2ip.ua
16	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

Processes:

8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

description	pid	process	target process
PID 1668 set thread context of 548	1668	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2528 set thread context of 2076	2528	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4648 2076 WerFault.exe 8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

pid	pid_target	process	target process
4648	2076	WerFault.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

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

Processes:

8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe8ea72364aef6738debc38a72456ae875_JaffaCakes118.exeicacls.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

pid process

548 8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
548 8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

pid	process
548	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
548	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.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:548
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\fd741d54-70c6-460c-b4d4-d10dc0034e64" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4824
- - C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2528
  - - C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:2076
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 228
        5⤵
        Program crash
        
        PID:4648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2076 -ip 2076
1⤵
PID:4312

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\fd741d54-70c6-460c-b4d4-d10dc0034e64\8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

Filesize
677KB

MD5
8ea72364aef6738debc38a72456ae875

SHA1
67fc11482612c3efda5a7d9111fc0ce8995cb806

SHA256
5d78cfec3d53645a049ddf865d760f4430fd8e6b6958821326ee194f927278cb

SHA512
7c48f28000528a6ca8d481de573dd7317fa201979e17e4dcf29a8eb82e1ec891ef3ca3aefc9a5e38b17beb9b8a716c4fb8c0ab4e698e74c588dcf38e270c810e

Download Submit
memory/548-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/548-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/548-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/548-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/548-19-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1668-1-0x0000000002170000-0x0000000002208000-memory.dmp

Filesize
608KB

Download
memory/1668-2-0x0000000002210000-0x000000000232B000-memory.dmp

Filesize
1.1MB

Download
memory/2076-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2076-26-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2076-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2528-21-0x0000000000400000-0x0000000000530000-memory.dmp

Filesize
1.2MB

Download
memory/2528-27-0x0000000000400000-0x0000000000530000-memory.dmp

Filesize
1.2MB

Download

description	pid	process	target process
PID 1668 wrote to memory of 548	1668	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1668 wrote to memory of 548	1668	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1668 wrote to memory of 548	1668	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1668 wrote to memory of 548	1668	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1668 wrote to memory of 548	1668	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1668 wrote to memory of 548	1668	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1668 wrote to memory of 548	1668	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1668 wrote to memory of 548	1668	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1668 wrote to memory of 548	1668	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 1668 wrote to memory of 548	1668	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 548 wrote to memory of 4824	548	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	icacls.exe
PID 548 wrote to memory of 4824	548	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	icacls.exe
PID 548 wrote to memory of 4824	548	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	icacls.exe
PID 548 wrote to memory of 2528	548	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 548 wrote to memory of 2528	548	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 548 wrote to memory of 2528	548	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2528 wrote to memory of 2076	2528	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2528 wrote to memory of 2076	2528	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2528 wrote to memory of 2076	2528	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2528 wrote to memory of 2076	2528	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2528 wrote to memory of 2076	2528	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2528 wrote to memory of 2076	2528	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2528 wrote to memory of 2076	2528	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2528 wrote to memory of 2076	2528	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2528 wrote to memory of 2076	2528	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe
PID 2528 wrote to memory of 2076	2528	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe	8ea72364aef6738debc38a72456ae875_JaffaCakes118.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads