djvu | 578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e

General

Target

JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe
Size

839KB
MD5

074601f894c2231c4bf70bfe86b380c5
SHA1

097913be833b7f9f9fbacbfee76cccc3e4e2f3d3
SHA256

578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e
SHA512

589b3d32ffad4524cf532f7aa889d59ca1741fedd304eafe22e4f6448634d01cce38f4a213f7577fcba19c3406a59dddc4367b5e4a1de4482da7f3ce61d913a4
SSDEEP

24576:JDSPE4iYI6kBSjULV3LU0Fi33S96UVOCsB:VahG1UmiSgUg

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.dwqs
offline_id
PfLhykvDxmCghCq8peuxBtQ3c0QBuANi8WUkuet1
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/1004-2-0x0000000002340000-0x000000000245B000-memory.dmp	family_djvu
behavioral2/memory/4820-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4820-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4820-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4820-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4820-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2912-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2912-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2912-25-0x0000000000400000-0x0000000000537000-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_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3060	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\\6c9afac4-42ad-459f-ae34-37420d61e5f4\\JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe\" --AutoStart"	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.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
13	api.2ip.ua
14	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1004 set thread context of 4820	1004	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	82
PID 2192 set thread context of 2912	2192	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.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
3548	2912	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_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4820	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe
4820	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1004 wrote to memory of 4820	1004	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	82
PID 1004 wrote to memory of 4820	1004	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	82
PID 1004 wrote to memory of 4820	1004	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	82
PID 1004 wrote to memory of 4820	1004	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	82
PID 1004 wrote to memory of 4820	1004	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	82
PID 1004 wrote to memory of 4820	1004	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	82
PID 1004 wrote to memory of 4820	1004	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	82
PID 1004 wrote to memory of 4820	1004	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	82
PID 1004 wrote to memory of 4820	1004	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	82
PID 1004 wrote to memory of 4820	1004	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	82
PID 4820 wrote to memory of 3060	4820	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	83
PID 4820 wrote to memory of 3060	4820	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	83
PID 4820 wrote to memory of 3060	4820	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	83
PID 4820 wrote to memory of 2192	4820	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	84
PID 4820 wrote to memory of 2192	4820	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	84
PID 4820 wrote to memory of 2192	4820	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	84
PID 2192 wrote to memory of 2912	2192	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	86
PID 2192 wrote to memory of 2912	2192	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	86
PID 2192 wrote to memory of 2912	2192	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	86
PID 2192 wrote to memory of 2912	2192	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	86
PID 2192 wrote to memory of 2912	2192	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	86
PID 2192 wrote to memory of 2912	2192	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	86
PID 2192 wrote to memory of 2912	2192	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	86
PID 2192 wrote to memory of 2912	2192	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	86
PID 2192 wrote to memory of 2912	2192	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	86
PID 2192 wrote to memory of 2912	2192	JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1004
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.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:4820
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\6c9afac4-42ad-459f-ae34-37420d61e5f4" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3060
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2192
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:2912
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2912 -s 568
        5⤵
        Program crash
        
        PID:3548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2912 -ip 2912
1⤵
PID:4116

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\6c9afac4-42ad-459f-ae34-37420d61e5f4\JaffaCakes118_578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e.exe

Filesize
839KB

MD5
074601f894c2231c4bf70bfe86b380c5

SHA1
097913be833b7f9f9fbacbfee76cccc3e4e2f3d3

SHA256
578771ff3fba7e5d2707e6e013742afb398fe0192951d168b65be0ad9221544e

SHA512
589b3d32ffad4524cf532f7aa889d59ca1741fedd304eafe22e4f6448634d01cce38f4a213f7577fcba19c3406a59dddc4367b5e4a1de4482da7f3ce61d913a4

Download Submit
memory/1004-2-0x0000000002340000-0x000000000245B000-memory.dmp

Filesize
1.1MB

Download
memory/1004-1-0x00000000022A0000-0x0000000002335000-memory.dmp

Filesize
596KB

Download
memory/2192-24-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/2192-19-0x0000000000400000-0x00000000004DD000-memory.dmp

Filesize
884KB

Download
memory/2912-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2912-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2912-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4820-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4820-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4820-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4820-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4820-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads