djvu | f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c

General

Target

JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
Size

767KB
MD5

d625f0deefebe3fce34deb6437f4df96
SHA1

57709bd0f7bf40ff26978a32419abbe14cf880a5
SHA256

f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c
SHA512

a35ccd19a7f3b7a8e3db44b0cbac5210721f941d671b105b613dcdc103f37ccc1f1cd57681863821840352499e9b7912be29872048799b42dc2aecf0bdbab879
SSDEEP

12288:snTpZMYbuAnGaCQsHdfHfd/3AYlQ7JtvL4WgX7FzGeuzYajHyf:CZMg+p/dR2tvL4W4P0HG

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/1260-2-0x0000000002300000-0x000000000241B000-memory.dmp	family_djvu
behavioral2/memory/1988-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1988-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1988-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1988-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1988-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1016-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1016-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/1016-21-0x0000000000400000-0x0000000000537000-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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
4716	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\\581f683b-f983-49e6-bfc2-67e771c5c16f\\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe\" --AutoStart"	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.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
6	api.2ip.ua
5	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1260 set thread context of 1988	1260	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	82
PID 2008 set thread context of 1016	2008	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.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
1100	1016	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_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1988	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
1988	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1260 wrote to memory of 1988	1260	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	82
PID 1260 wrote to memory of 1988	1260	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	82
PID 1260 wrote to memory of 1988	1260	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	82
PID 1260 wrote to memory of 1988	1260	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	82
PID 1260 wrote to memory of 1988	1260	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	82
PID 1260 wrote to memory of 1988	1260	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	82
PID 1260 wrote to memory of 1988	1260	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	82
PID 1260 wrote to memory of 1988	1260	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	82
PID 1260 wrote to memory of 1988	1260	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	82
PID 1260 wrote to memory of 1988	1260	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	82
PID 1988 wrote to memory of 4716	1988	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	83
PID 1988 wrote to memory of 4716	1988	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	83
PID 1988 wrote to memory of 4716	1988	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	83
PID 1988 wrote to memory of 2008	1988	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	84
PID 1988 wrote to memory of 2008	1988	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	84
PID 1988 wrote to memory of 2008	1988	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	84
PID 2008 wrote to memory of 1016	2008	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	86
PID 2008 wrote to memory of 1016	2008	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	86
PID 2008 wrote to memory of 1016	2008	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	86
PID 2008 wrote to memory of 1016	2008	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	86
PID 2008 wrote to memory of 1016	2008	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	86
PID 2008 wrote to memory of 1016	2008	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	86
PID 2008 wrote to memory of 1016	2008	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	86
PID 2008 wrote to memory of 1016	2008	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	86
PID 2008 wrote to memory of 1016	2008	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	86
PID 2008 wrote to memory of 1016	2008	JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1260
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.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:1988
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\581f683b-f983-49e6-bfc2-67e771c5c16f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:4716
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2008
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      PID:1016
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1016 -s 568
        5⤵
        Program crash
        
        PID:1100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1016 -ip 1016
1⤵
PID:1136

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\581f683b-f983-49e6-bfc2-67e771c5c16f\JaffaCakes118_f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c.exe

Filesize
767KB

MD5
d625f0deefebe3fce34deb6437f4df96

SHA1
57709bd0f7bf40ff26978a32419abbe14cf880a5

SHA256
f3915f092365f34a08a568eb0f8f6eb56c0bfb2ca95d74aa87c20806cb55186c

SHA512
a35ccd19a7f3b7a8e3db44b0cbac5210721f941d671b105b613dcdc103f37ccc1f1cd57681863821840352499e9b7912be29872048799b42dc2aecf0bdbab879

Download Submit
memory/1016-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1016-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1016-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1260-2-0x0000000002300000-0x000000000241B000-memory.dmp

Filesize
1.1MB

Download
memory/1260-1-0x0000000002260000-0x00000000022FD000-memory.dmp

Filesize
628KB

Download
memory/1988-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1988-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1988-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1988-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/1988-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2008-19-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2008-25-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads