djvu | 04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897

General

Target

JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
Size

786KB
MD5

19a0f771712c1c4f3ec34f6e15c88065
SHA1

da2c4ca1f4023d6f296daa0cf7017f84fd3ff6f5
SHA256

04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897
SHA512

690dce35069dc0ef4040f8d9da9ce6105efcc6c9c4ba06e25dfe7ed4d9029eca28a8be8410e38a58bdc4c72c1fcc9627c94103b942723741c59749d85ae3a152
SSDEEP

12288:EsEp5370ATojAyLvD6IahFn3eDLwm140c41xdHDLorRy5N0Fm+pdgItvfTiz76Z9:EHLmAY7o3ej47GDvNOdsUH5Fua

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.wdlo
offline_id
i0fXrUHVihm5xsI9Icg243YMPJqd748Ocimkyjt1
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/316-2-0x0000000002330000-0x000000000244B000-memory.dmp	family_djvu
behavioral2/memory/3012-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3012-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3012-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3012-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3012-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3588-23-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3588-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3588-25-0x0000000000400000-0x0000000000537000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
2308	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\6b8228ff-d960-4fa2-9c18-d571ff279fbd\\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe\" --AutoStart"	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.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
7	api.2ip.ua
6	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 316 set thread context of 3012	316	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	82
PID 4640 set thread context of 3588	4640	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	87

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
3980	3588	WerFault.exe	87

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	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3012	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
3012	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 316 wrote to memory of 3012	316	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	82
PID 316 wrote to memory of 3012	316	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	82
PID 316 wrote to memory of 3012	316	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	82
PID 316 wrote to memory of 3012	316	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	82
PID 316 wrote to memory of 3012	316	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	82
PID 316 wrote to memory of 3012	316	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	82
PID 316 wrote to memory of 3012	316	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	82
PID 316 wrote to memory of 3012	316	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	82
PID 316 wrote to memory of 3012	316	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	82
PID 316 wrote to memory of 3012	316	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	82
PID 3012 wrote to memory of 2308	3012	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	84
PID 3012 wrote to memory of 2308	3012	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	84
PID 3012 wrote to memory of 2308	3012	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	84
PID 3012 wrote to memory of 4640	3012	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	85
PID 3012 wrote to memory of 4640	3012	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	85
PID 3012 wrote to memory of 4640	3012	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	85
PID 4640 wrote to memory of 3588	4640	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	87
PID 4640 wrote to memory of 3588	4640	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	87
PID 4640 wrote to memory of 3588	4640	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	87
PID 4640 wrote to memory of 3588	4640	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	87
PID 4640 wrote to memory of 3588	4640	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	87
PID 4640 wrote to memory of 3588	4640	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	87
PID 4640 wrote to memory of 3588	4640	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	87
PID 4640 wrote to memory of 3588	4640	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	87
PID 4640 wrote to memory of 3588	4640	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	87
PID 4640 wrote to memory of 3588	4640	JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:316
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.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:3012
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\6b8228ff-d960-4fa2-9c18-d571ff279fbd" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:2308
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4640
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:3588
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3588 -s 584
        5⤵
        Program crash
        
        PID:3980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3588 -ip 3588
1⤵
PID:4944

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\6b8228ff-d960-4fa2-9c18-d571ff279fbd\JaffaCakes118_04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897.exe

Filesize
786KB

MD5
19a0f771712c1c4f3ec34f6e15c88065

SHA1
da2c4ca1f4023d6f296daa0cf7017f84fd3ff6f5

SHA256
04cfe027c699682bd48f382988098d0275f680bc84104d25f1a590ddfa0de897

SHA512
690dce35069dc0ef4040f8d9da9ce6105efcc6c9c4ba06e25dfe7ed4d9029eca28a8be8410e38a58bdc4c72c1fcc9627c94103b942723741c59749d85ae3a152

Download Submit
memory/316-1-0x0000000000640000-0x00000000006DA000-memory.dmp

Filesize
616KB

Download
memory/316-2-0x0000000002330000-0x000000000244B000-memory.dmp

Filesize
1.1MB

Download
memory/3012-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3012-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3588-23-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3588-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3588-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4640-19-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download
memory/4640-22-0x0000000000400000-0x00000000004F0000-memory.dmp

Filesize
960KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads