djvu | d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee

General

Target

JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
Size

847KB
MD5

431817479eef8167eee6154a9a20cf35
SHA1

f03240d8764d7f069b219c26057c4a5b4b28c904
SHA256

d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee
SHA512

7f9410c46268862490e2ebd7bdbd5b04d2db381dd76163c10565cc4b38b9e3ca9e4aac4d8d11f67f64f6f3dbd18720d84e92ddd9ff2e9799b0511207d1bc2de7
SSDEEP

24576:4N1UOIkbHMb2o6K1LqTj/3/S2Kj2wR+2:4j/Ikbsb2YLqTD0N

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.udla
offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
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/2392-2-0x0000000002440000-0x000000000255B000-memory.dmp	family_djvu
behavioral2/memory/3152-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3152-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3152-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3152-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/3152-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4428-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4428-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4428-22-0x0000000000400000-0x0000000000537000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3232	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\057a1198-c955-45a6-93b2-6aa9285b6219\\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe\" --AutoStart"	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.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
15	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2392 set thread context of 3152	2392	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	82
PID 3508 set thread context of 4428	3508	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.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
3032	4428	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_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3152	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
3152	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 3152	2392	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	82
PID 2392 wrote to memory of 3152	2392	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	82
PID 2392 wrote to memory of 3152	2392	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	82
PID 2392 wrote to memory of 3152	2392	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	82
PID 2392 wrote to memory of 3152	2392	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	82
PID 2392 wrote to memory of 3152	2392	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	82
PID 2392 wrote to memory of 3152	2392	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	82
PID 2392 wrote to memory of 3152	2392	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	82
PID 2392 wrote to memory of 3152	2392	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	82
PID 2392 wrote to memory of 3152	2392	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	82
PID 3152 wrote to memory of 3232	3152	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	83
PID 3152 wrote to memory of 3232	3152	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	83
PID 3152 wrote to memory of 3232	3152	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	83
PID 3152 wrote to memory of 3508	3152	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	84
PID 3152 wrote to memory of 3508	3152	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	84
PID 3152 wrote to memory of 3508	3152	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	84
PID 3508 wrote to memory of 4428	3508	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	86
PID 3508 wrote to memory of 4428	3508	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	86
PID 3508 wrote to memory of 4428	3508	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	86
PID 3508 wrote to memory of 4428	3508	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	86
PID 3508 wrote to memory of 4428	3508	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	86
PID 3508 wrote to memory of 4428	3508	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	86
PID 3508 wrote to memory of 4428	3508	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	86
PID 3508 wrote to memory of 4428	3508	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	86
PID 3508 wrote to memory of 4428	3508	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	86
PID 3508 wrote to memory of 4428	3508	JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2392
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.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:3152
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\057a1198-c955-45a6-93b2-6aa9285b6219" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3232
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3508
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:4428
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4428 -s 584
        5⤵
        Program crash
        
        PID:3032

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4428 -ip 4428
1⤵
PID:3440

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\057a1198-c955-45a6-93b2-6aa9285b6219\JaffaCakes118_d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee.exe

Filesize
847KB

MD5
431817479eef8167eee6154a9a20cf35

SHA1
f03240d8764d7f069b219c26057c4a5b4b28c904

SHA256
d3f848e862f61248e2d261eccb575866e4e743de3680bec76e2dc5b05fa20bee

SHA512
7f9410c46268862490e2ebd7bdbd5b04d2db381dd76163c10565cc4b38b9e3ca9e4aac4d8d11f67f64f6f3dbd18720d84e92ddd9ff2e9799b0511207d1bc2de7

Download Submit
memory/2392-1-0x00000000023A0000-0x0000000002438000-memory.dmp

Filesize
608KB

Download
memory/2392-2-0x0000000002440000-0x000000000255B000-memory.dmp

Filesize
1.1MB

Download
memory/3152-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3152-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3152-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3152-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3152-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/3508-19-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/3508-25-0x0000000000400000-0x000000000051A000-memory.dmp

Filesize
1.1MB

Download
memory/4428-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4428-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4428-22-0x0000000000400000-0x0000000000537000-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