djvu | 3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b

General

Target

JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe
Size

725KB
MD5

1e7a62de18e36209e055edb94e41876c
SHA1

c749d197e238fa0b95084a2a63f3b5a2995c610e
SHA256

3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b
SHA512

f200602242a1e242b408fd31ee044c6277405d2812ef2caf0bdf848983fad8cd115ffd180bead2eff76eae4ad2f7e9d851f1abc48d4462130e44d073010c6634
SSDEEP

12288:OorN9++HKupf+XovQkyKHketoU1FG1koRPPhTNR7cgZDK9n6lK2qyOFqW12J2LNk:Oobcup2XsQkyKNDG1lNbAznMK2xgqW1w

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.msjd
offline_id
Xe4NOamOTHZrARTiL9dfVzAylFrEWLGGbr2dngt1
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/4836-2-0x0000000000AB0000-0x0000000000BCB000-memory.dmp	family_djvu
behavioral2/memory/4332-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4332-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4332-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4332-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4332-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5060-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5060-25-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/5060-21-0x0000000000400000-0x0000000000537000-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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
1632	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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\0cd827b2-fe5b-4ee8-98e5-853a982ff8b9\\JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe\" --AutoStart"	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.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
15	api.2ip.ua
16	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4836 set thread context of 4332	4836	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	83
PID 1696 set thread context of 5060	1696	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	90

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
3612	5060	WerFault.exe	90

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_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4332	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe
4332	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 4836 wrote to memory of 4332	4836	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	83
PID 4836 wrote to memory of 4332	4836	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	83
PID 4836 wrote to memory of 4332	4836	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	83
PID 4836 wrote to memory of 4332	4836	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	83
PID 4836 wrote to memory of 4332	4836	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	83
PID 4836 wrote to memory of 4332	4836	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	83
PID 4836 wrote to memory of 4332	4836	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	83
PID 4836 wrote to memory of 4332	4836	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	83
PID 4836 wrote to memory of 4332	4836	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	83
PID 4836 wrote to memory of 4332	4836	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	83
PID 4332 wrote to memory of 1632	4332	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	84
PID 4332 wrote to memory of 1632	4332	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	84
PID 4332 wrote to memory of 1632	4332	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	84
PID 4332 wrote to memory of 1696	4332	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	85
PID 4332 wrote to memory of 1696	4332	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	85
PID 4332 wrote to memory of 1696	4332	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	85
PID 1696 wrote to memory of 5060	1696	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	90
PID 1696 wrote to memory of 5060	1696	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	90
PID 1696 wrote to memory of 5060	1696	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	90
PID 1696 wrote to memory of 5060	1696	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	90
PID 1696 wrote to memory of 5060	1696	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	90
PID 1696 wrote to memory of 5060	1696	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	90
PID 1696 wrote to memory of 5060	1696	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	90
PID 1696 wrote to memory of 5060	1696	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	90
PID 1696 wrote to memory of 5060	1696	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	90
PID 1696 wrote to memory of 5060	1696	JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4836
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.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:4332
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\0cd827b2-fe5b-4ee8-98e5-853a982ff8b9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:1632
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1696
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:5060
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 5060 -s 572
        5⤵
        Program crash
        
        PID:3612

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5060 -ip 5060
1⤵
PID:3952

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\0cd827b2-fe5b-4ee8-98e5-853a982ff8b9\JaffaCakes118_3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b.exe

Filesize
725KB

MD5
1e7a62de18e36209e055edb94e41876c

SHA1
c749d197e238fa0b95084a2a63f3b5a2995c610e

SHA256
3eb8195cf102a896825166c43243f0dea98a8e4e1ab7e57eec412b7bb7f63d0b

SHA512
f200602242a1e242b408fd31ee044c6277405d2812ef2caf0bdf848983fad8cd115ffd180bead2eff76eae4ad2f7e9d851f1abc48d4462130e44d073010c6634

Download Submit
memory/1696-23-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/1696-19-0x0000000000400000-0x00000000004BF000-memory.dmp

Filesize
764KB

Download
memory/4332-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4332-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4332-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4332-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4332-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4836-1-0x0000000000990000-0x0000000000A30000-memory.dmp

Filesize
640KB

Download
memory/4836-2-0x0000000000AB0000-0x0000000000BCB000-memory.dmp

Filesize
1.1MB

Download
memory/5060-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5060-25-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/5060-21-0x0000000000400000-0x0000000000537000-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