456038b64af80973556ecaaff2ce1e8cebd414bc5c48a7831e5f86518c796680

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
14-07-2024 22:24

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General

Target

47093246c10caddd3263a32b8b4b3adc_JaffaCakes118.dll
Size

27KB
MD5

47093246c10caddd3263a32b8b4b3adc
SHA1

b27a7a35a2abd34d5348c34072ecb4064533ed16
SHA256

456038b64af80973556ecaaff2ce1e8cebd414bc5c48a7831e5f86518c796680
SHA512

b0c1df2473c6529f24a6e9659b14c77e74968f21465fe762ea2eb16f926a90455c21aba76579f8a08358fd25e28de957e4bff05acdc08a7c31e3877f8e44416c
SSDEEP

384:/9myvbGcCLojkfpOlCQNh/edOTMQUbInFCUvkGg/eRJ4VeU46skH:VDK3LoofUXNhmKMQU8nFCmIqeeU3n

Score

7^/10

persistence upx

Malware Config

Signatures

Loads dropped DLL 3 IoCs

pid	Process
4392	rundll32.exe
4392	rundll32.exe
3424	rundll32.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4392-0-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4392-1-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4392-5-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/4392-14-0x0000000000A60000-0x0000000000A74000-memory.dmp	upx
behavioral2/memory/3424-23-0x0000000010000000-0x0000000010014000-memory.dmp	upx
behavioral2/memory/3424-24-0x0000000010000000-0x0000000010014000-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\\cbXPjJcY.dll,#1"	rundll32.exe

Drops file in System32 directory 2 IoCs

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

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{55737035-1B75-48DD-A4D8-66155D8AC7A3}	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{55737035-1B75-48DD-A4D8-66155D8AC7A3}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{55737035-1B75-48DD-A4D8-66155D8AC7A3}\InprocServer32\ = "C:\\Windows\\SysWow64\\cbXPjJcY.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{55737035-1B75-48DD-A4D8-66155D8AC7A3}\InprocServer32\ThreadingModel = "Both"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4392	rundll32.exe
4392	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe
3424	rundll32.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
4392	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4392	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4392	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1036 wrote to memory of 4392	1036	rundll32.exe	83
PID 1036 wrote to memory of 4392	1036	rundll32.exe	83
PID 1036 wrote to memory of 4392	1036	rundll32.exe	83
PID 4392 wrote to memory of 628	4392	rundll32.exe	5
PID 4392 wrote to memory of 3424	4392	rundll32.exe	91
PID 4392 wrote to memory of 3424	4392	rundll32.exe	91
PID 4392 wrote to memory of 3424	4392	rundll32.exe	91

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:628

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\47093246c10caddd3263a32b8b4b3adc_JaffaCakes118.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1036
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\47093246c10caddd3263a32b8b4b3adc_JaffaCakes118.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: RenamesItself
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4392
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\cbXPjJcY.dll,a
    3⤵
    - Loads dropped DLL
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    PID:3424

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\cbXPjJcY.dll

Filesize
27KB

MD5
47093246c10caddd3263a32b8b4b3adc

SHA1
b27a7a35a2abd34d5348c34072ecb4064533ed16

SHA256
456038b64af80973556ecaaff2ce1e8cebd414bc5c48a7831e5f86518c796680

SHA512
b0c1df2473c6529f24a6e9659b14c77e74968f21465fe762ea2eb16f926a90455c21aba76579f8a08358fd25e28de957e4bff05acdc08a7c31e3877f8e44416c

Download Submit
memory/3424-23-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/3424-24-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4392-0-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4392-3-0x00000000007A0000-0x00000000007A6000-memory.dmp

Filesize
24KB

Download
memory/4392-1-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4392-2-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4392-4-0x000000001000E000-0x0000000010013000-memory.dmp

Filesize
20KB

Download
memory/4392-5-0x0000000010000000-0x0000000010014000-memory.dmp

Filesize
80KB

Download
memory/4392-14-0x0000000000A60000-0x0000000000A74000-memory.dmp

Filesize
80KB

Download