68dc368efa8927c196812266f95f11b061d8e846e075e25fb782e43644fe8965

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
27/06/2024, 10:43

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General

Target

15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe
Size

13KB
MD5

15b25974cd9e4f1488de4de049cb9ee1
SHA1

50f7892486da237f7695695f83551f1ba9abfdd2
SHA256

68dc368efa8927c196812266f95f11b061d8e846e075e25fb782e43644fe8965
SHA512

d53cf01bec2abd2898dace5e0c2c55553d935eddf0a119953df26da6693fc40ccfe6c3e74d6d8f2445032bf497ec57f47e288cd9c09a661761cb96bb75d91ce4
SSDEEP

384:yi8HP3ODB8fFAXk2NzLeD2T8GKzV9JCinm3odyeJA+1:yia3OF8fFukweDW+V9tm4dyeW8

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 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\ShellServiceObjectDelayLoad\ksuserfy.dll = "{C4C78494-4D05-4614-8CF2-03F1C4276C8A}"	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe

Loads dropped DLL 1 IoCs

pid	Process
2040	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ksuserfy.tmp	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\ksuserfy.tmp	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\ksuserfy.nls	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C4C78494-4D05-4614-8CF2-03F1C4276C8A}\InProcServer32	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C4C78494-4D05-4614-8CF2-03F1C4276C8A}\InProcServer32\ = "C:\\Windows\\SysWow64\\ksuserfy.dll"	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C4C78494-4D05-4614-8CF2-03F1C4276C8A}\InProcServer32\ThreadingModel = "Apartment"	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C4C78494-4D05-4614-8CF2-03F1C4276C8A}	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2040	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe
2040	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2040	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe
2040	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe
2040	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 536	2040	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe	94
PID 2040 wrote to memory of 536	2040	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe	94
PID 2040 wrote to memory of 536	2040	15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe	94

C:\Users\Admin\AppData\Local\Temp\15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\15b25974cd9e4f1488de4de049cb9ee1_JaffaCakes118.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\B1DB.tmp.bat
  2⤵
  PID:536

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\B1DB.tmp.bat

Filesize
207B

MD5
94be9e3e8b6b8bc5b784dac99b1edcb4

SHA1
ef8e7b5657b2959d3e9854c5023261eb78b8255a

SHA256
4230feb27fe670aad4d270df89447a7b5d9cf61664b686ace5f78e6167cf51f1

SHA512
60af0aba3a640196454d6c0673dd9363e17e6e1f00a200f8b3b87e2c06c992addb9faff96402b15afb328cc072502670f9311f1ff3ba76b0e8fbbdcdb9f2d437

Download Submit
C:\Windows\SysWOW64\ksuserfy.tmp

Filesize
2.1MB

MD5
65d7730bf7fee4c13b3dd8bf67f4f469

SHA1
73806660cffacd40a6fef0cf4fb0ed2e86b46d76

SHA256
6811b993b6ee46b99f193e196e037adf1d4456fadf2793029fe6dbb55daf73d6

SHA512
cae6a37164d1b36dabb6c1897e79704caa3caf0ea34cf75a401fa208354e3764ee58c4ef5d6a9f78f2cec5ca41b78e31c41711a9b7c08411ab92b3c971ef6a0e

Download Submit
memory/2040-13-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download
memory/2040-17-0x0000000010000000-0x0000000010008000-memory.dmp

Filesize
32KB

Download