djvu | a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51

General

Target

JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe
Size

794KB
MD5

43a54331fd7de4f56a2c17941f346637
SHA1

238938de018a0e38c19a2d2a38287ac10ea92209
SHA256

a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51
SHA512

0d3dfb1913a0633ed42aec834fb6fec33c05b4f91ca21ad0689572a7c3eedaa42d435ae0913f0de547fd8c20a8bedd7e58eec5e63c95b43666d370728bfecc53
SSDEEP

12288:phZ/cYe2dxXbiJbjlUo77KOcY4iwb7ay5f3puUj8Ny0eiJRaSEWvgwY:tze2zuWoHp4iPc31Aw0bljvv

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes

extension
.nnuz
offline_id
vBBkNb2o254Xzi3oCcyyfpBNyU9yOZKLh1HH5Mt1
payload_url
http://zerit.top/dl/build2.exe

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

Signatures

Detected Djvu ransomware 9 IoCs

resource	yara_rule
behavioral2/memory/632-2-0x0000000002270000-0x000000000238B000-memory.dmp	family_djvu
behavioral2/memory/1752-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1752-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1752-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1752-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1752-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4760-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4760-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4760-24-0x0000000000400000-0x0000000000537000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3852	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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\2b196995-1225-4230-9d95-a29d0a111e14\\JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe\" --AutoStart"	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.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
8	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 632 set thread context of 1752	632	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	82
PID 4268 set thread context of 4760	4268	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.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
1468	4760	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_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1752	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe
1752	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 632 wrote to memory of 1752	632	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	82
PID 632 wrote to memory of 1752	632	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	82
PID 632 wrote to memory of 1752	632	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	82
PID 632 wrote to memory of 1752	632	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	82
PID 632 wrote to memory of 1752	632	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	82
PID 632 wrote to memory of 1752	632	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	82
PID 632 wrote to memory of 1752	632	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	82
PID 632 wrote to memory of 1752	632	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	82
PID 632 wrote to memory of 1752	632	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	82
PID 632 wrote to memory of 1752	632	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	82
PID 1752 wrote to memory of 3852	1752	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	83
PID 1752 wrote to memory of 3852	1752	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	83
PID 1752 wrote to memory of 3852	1752	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	83
PID 1752 wrote to memory of 4268	1752	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	84
PID 1752 wrote to memory of 4268	1752	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	84
PID 1752 wrote to memory of 4268	1752	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	84
PID 4268 wrote to memory of 4760	4268	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	86
PID 4268 wrote to memory of 4760	4268	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	86
PID 4268 wrote to memory of 4760	4268	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	86
PID 4268 wrote to memory of 4760	4268	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	86
PID 4268 wrote to memory of 4760	4268	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	86
PID 4268 wrote to memory of 4760	4268	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	86
PID 4268 wrote to memory of 4760	4268	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	86
PID 4268 wrote to memory of 4760	4268	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	86
PID 4268 wrote to memory of 4760	4268	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	86
PID 4268 wrote to memory of 4760	4268	JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:632
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.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:1752
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\2b196995-1225-4230-9d95-a29d0a111e14" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3852
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4268
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:4760
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 568
        5⤵
        Program crash
        
        PID:1468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4760 -ip 4760
1⤵
PID:1888

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\2b196995-1225-4230-9d95-a29d0a111e14\JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51.exe

Filesize
794KB

MD5
43a54331fd7de4f56a2c17941f346637

SHA1
238938de018a0e38c19a2d2a38287ac10ea92209

SHA256
a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51

SHA512
0d3dfb1913a0633ed42aec834fb6fec33c05b4f91ca21ad0689572a7c3eedaa42d435ae0913f0de547fd8c20a8bedd7e58eec5e63c95b43666d370728bfecc53

Download Submit
memory/632-1-0x0000000000830000-0x00000000008D0000-memory.dmp

Filesize
640KB

Download
memory/632-2-0x0000000002270000-0x000000000238B000-memory.dmp

Filesize
1.1MB

Download
memory/1752-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1752-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1752-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1752-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1752-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4268-19-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/4268-25-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/4760-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4760-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4760-24-0x0000000000400000-0x0000000000537000-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