d05ada563dc57c5d8704114f7ef1cafd7eb729295f46b4e4ee0e92d08eb3a594

Analysis

max time kernel
149s
max time network
124s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22/08/2024, 21:28

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General

Target

b9364176e09c7888761f6c4e02c12fe2_JaffaCakes118.dll
Size

39KB
MD5

b9364176e09c7888761f6c4e02c12fe2
SHA1

663e29bd70d67dfc48d97a97ea5bfcbc1342db6f
SHA256

d05ada563dc57c5d8704114f7ef1cafd7eb729295f46b4e4ee0e92d08eb3a594
SHA512

f42c463fc492b08f677778025d6a524757059334085f2ad59ff4c379dde1a6b3d2b17826cc66a01281d369f294425ebb564b25a134a9c7de7b33b9947c323111
SSDEEP

768:yzuoYUsoL6Qb7J2C8w2fshLPBgqGE4BkLcdoE2+hX2fVdthFqF7UOgUGz9G:yzuoYstb7JzRL5lSIcdohf53qFMFE

Score

7^/10

discovery persistence upx

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
3560	rundll32.exe
3560	rundll32.exe
1472	rundll32.exe

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3560-1-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/3560-0-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/3560-5-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/3560-13-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/3560-17-0x00000000010A0000-0x00000000010B4000-memory.dmp	upx
behavioral2/memory/1472-24-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1472-25-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/1472-26-0x0000000010000000-0x0000000010014000-memory.dmp	upx

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\MSServer = "rundll32.exe C:\\Windows\\system32\\awtustrp.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\awtustrp.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\awtustrp.dll	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{53301152-F0CB-4A4F-8281-42D2EBE39DCF}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{53301152-F0CB-4A4F-8281-42D2EBE39DCF}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{53301152-F0CB-4A4F-8281-42D2EBE39DCF}\InprocServer32\ = "C:\\Windows\\SysWow64\\awtustrp.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{53301152-F0CB-4A4F-8281-42D2EBE39DCF}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3560	rundll32.exe
3560	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe
1472	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
3560	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3560	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3560	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 5092 wrote to memory of 3560	5092	rundll32.exe	84
PID 5092 wrote to memory of 3560	5092	rundll32.exe	84
PID 5092 wrote to memory of 3560	5092	rundll32.exe	84
PID 3560 wrote to memory of 616	3560	rundll32.exe	5
PID 3560 wrote to memory of 1472	3560	rundll32.exe	97
PID 3560 wrote to memory of 1472	3560	rundll32.exe	97
PID 3560 wrote to memory of 1472	3560	rundll32.exe	97

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:616

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9364176e09c7888761f6c4e02c12fe2_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5092
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b9364176e09c7888761f6c4e02c12fe2_JaffaCakes118.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3560
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\awtustrp.dll,a
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:1472

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\awtustrp.dll

Filesize
39KB

MD5
b9364176e09c7888761f6c4e02c12fe2

SHA1
663e29bd70d67dfc48d97a97ea5bfcbc1342db6f

SHA256
d05ada563dc57c5d8704114f7ef1cafd7eb729295f46b4e4ee0e92d08eb3a594

SHA512
f42c463fc492b08f677778025d6a524757059334085f2ad59ff4c379dde1a6b3d2b17826cc66a01281d369f294425ebb564b25a134a9c7de7b33b9947c323111

Download Submit
memory/1472-26-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1472-25-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/1472-24-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/3560-0-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/3560-5-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/3560-4-0x000000001000E000-0x0000000010013000-memory.dmp

Filesize
20KB

Download
memory/3560-12-0x00000000010A0000-0x00000000010B4000-memory.dmp

Filesize
80KB

Download
memory/3560-13-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/3560-17-0x00000000010A0000-0x00000000010B4000-memory.dmp

Filesize
80KB

Download
memory/3560-3-0x0000000000F00000-0x0000000000F08000-memory.dmp

Filesize
32KB

Download
memory/3560-1-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/3560-2-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download