9401e9b02b4ab5c9c4c99f5f16ce4a6b34df0361686d50b52469a49a07731a5f

General

Target

96e00df0a1d6f0f507f416b1c7f13742_JaffaCakes118.exe
Size

31KB
MD5

96e00df0a1d6f0f507f416b1c7f13742
SHA1

cf661fb661f1a8ad45536cb4e4086e48b0848ac9
SHA256

9401e9b02b4ab5c9c4c99f5f16ce4a6b34df0361686d50b52469a49a07731a5f
SHA512

72b8ab2c5f3fa3e619e075689389be82ef6e9f3f5a72502848e0388f07d318ec5201cf3c251ea860ac239aec0843fa19ef2f6e58fcda695aae4c083e0134ecb3
SSDEEP

768:IUdoOCnz6m1rw77Fm0hLvcyjiB7h8lkSZTZcz3D:I6oOUR1r6Fpw7ylRZcv

Score

7^/10

bootkit defense_evasion discovery persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2736	wuaucldt.exe
1720	wuaucldt.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\wuaucldt = "c:\\windows\\system32\\wuaucldt.exe"	wuaucldt.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wuaucldt = "c:\\users\\admin\\wuaucldt.exe"	wuaucldt.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	svchost.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	\??\c:\windows\SysWOW64\wuaucldt.exe	wuaucldt.exe
File created	\??\c:\windows\SysWOW64\wuaucldt.exe	96e00df0a1d6f0f507f416b1c7f13742_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1720 set thread context of 2104	1720	wuaucldt.exe	88

System Location Discovery: System Language Discovery 1 TTPs 6 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	96e00df0a1d6f0f507f416b1c7f13742_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuaucldt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wuaucldt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4656 wrote to memory of 2736	4656	96e00df0a1d6f0f507f416b1c7f13742_JaffaCakes118.exe	84
PID 4656 wrote to memory of 2736	4656	96e00df0a1d6f0f507f416b1c7f13742_JaffaCakes118.exe	84
PID 4656 wrote to memory of 2736	4656	96e00df0a1d6f0f507f416b1c7f13742_JaffaCakes118.exe	84
PID 2736 wrote to memory of 1720	2736	wuaucldt.exe	85
PID 2736 wrote to memory of 1720	2736	wuaucldt.exe	85
PID 2736 wrote to memory of 1720	2736	wuaucldt.exe	85
PID 1720 wrote to memory of 2104	1720	wuaucldt.exe	88
PID 1720 wrote to memory of 2104	1720	wuaucldt.exe	88
PID 1720 wrote to memory of 2104	1720	wuaucldt.exe	88
PID 1720 wrote to memory of 2104	1720	wuaucldt.exe	88
PID 1720 wrote to memory of 2104	1720	wuaucldt.exe	88
PID 4656 wrote to memory of 1496	4656	96e00df0a1d6f0f507f416b1c7f13742_JaffaCakes118.exe	90
PID 4656 wrote to memory of 1496	4656	96e00df0a1d6f0f507f416b1c7f13742_JaffaCakes118.exe	90
PID 4656 wrote to memory of 1496	4656	96e00df0a1d6f0f507f416b1c7f13742_JaffaCakes118.exe	90
PID 2736 wrote to memory of 2120	2736	wuaucldt.exe	92
PID 2736 wrote to memory of 2120	2736	wuaucldt.exe	92
PID 2736 wrote to memory of 2120	2736	wuaucldt.exe	92

C:\Users\Admin\AppData\Local\Temp\96e00df0a1d6f0f507f416b1c7f13742_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\96e00df0a1d6f0f507f416b1c7f13742_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4656
- \??\c:\windows\SysWOW64\wuaucldt.exe
  c:\windows\system32\wuaucldt.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2736
- - \??\c:\users\admin\wuaucldt.exe
    c:\users\admin\wuaucldt.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1720
  - - C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      4⤵
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      PID:2104
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del c:\windows\syswow64\wuaucldt.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2120
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del c:\users\admin\appdata\local\temp\96E00D~1.EXE
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1496

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

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

Pre-OS Boot

T1542

Bootkit

1

T1542.003

Credential Access

Discovery

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:\Windows\SysWOW64\wuaucldt.exe

Filesize
31KB

MD5
96e00df0a1d6f0f507f416b1c7f13742

SHA1
cf661fb661f1a8ad45536cb4e4086e48b0848ac9

SHA256
9401e9b02b4ab5c9c4c99f5f16ce4a6b34df0361686d50b52469a49a07731a5f

SHA512
72b8ab2c5f3fa3e619e075689389be82ef6e9f3f5a72502848e0388f07d318ec5201cf3c251ea860ac239aec0843fa19ef2f6e58fcda695aae4c083e0134ecb3

Download Submit
memory/1720-17-0x0000000070000000-0x000000007000B000-memory.dmp

Filesize
44KB

Download
memory/2104-20-0x0000000000180000-0x0000000000189000-memory.dmp

Filesize
36KB

Download
memory/2104-24-0x0000000000180000-0x0000000000189000-memory.dmp

Filesize
36KB

Download
memory/2104-26-0x0000000000180000-0x0000000000189000-memory.dmp

Filesize
36KB

Download
memory/2104-25-0x0000000000180000-0x0000000000189000-memory.dmp

Filesize
36KB

Download
memory/2104-22-0x0000000000180000-0x0000000000189000-memory.dmp

Filesize
36KB

Download
memory/2104-19-0x0000000000180000-0x0000000000189000-memory.dmp

Filesize
36KB

Download
memory/2104-21-0x0000000000180000-0x0000000000189000-memory.dmp

Filesize
36KB

Download
memory/2736-14-0x0000000070000000-0x000000007000B000-memory.dmp

Filesize
44KB

Download
memory/4656-0-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/4656-1-0x0000000009000000-0x0000000009009000-memory.dmp

Filesize
36KB

Download
memory/4656-3-0x0000000070000000-0x000000007000B000-memory.dmp

Filesize
44KB

Download
memory/4656-2-0x0000000009000000-0x0000000009009000-memory.dmp

Filesize
36KB

Download
memory/4656-56-0x0000000070000000-0x000000007000B000-memory.dmp

Filesize
44KB

Download
memory/4656-55-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads