cfdaadf7260f935a12d77ba95e4dbbda3273b8b3914efdf03681539ad7a60de8

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
10/07/2024, 03:07

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General

Target

33137b2c2583d336f58e2d36b2223ad7_JaffaCakes118.exe
Size

13KB
MD5

33137b2c2583d336f58e2d36b2223ad7
SHA1

7ba4164d1eb6ba6abbce100dcf5b2f5f3c3dd6b7
SHA256

cfdaadf7260f935a12d77ba95e4dbbda3273b8b3914efdf03681539ad7a60de8
SHA512

294338c85b5e2e08beb05ff48a8e828f1752508edc76c293702a12fba18e77502959baf2cbda94ba7f27b0e0734306206894ea820f4536f2b0e3b7423850a5f7
SSDEEP

384:H0wW2OrRZtRZrtHnUd1z//VfoR6FLkoR:H0j2OrRZtFnUjz//VgR6FLko

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
4392	msccrt.exe

Executes dropped EXE 1 IoCs

pid	Process
4392	msccrt.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\msccrt = "C:\\Windows\\msccrt.exe"	msccrt.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\msccrt.dll	msccrt.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\msccrt.exe	33137b2c2583d336f58e2d36b2223ad7_JaffaCakes118.exe
File opened for modification	C:\Windows\msccrt.exe	33137b2c2583d336f58e2d36b2223ad7_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4392	msccrt.exe
4392	msccrt.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2100	33137b2c2583d336f58e2d36b2223ad7_JaffaCakes118.exe
Token: SeDebugPrivilege	4392	msccrt.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 4392	2100	33137b2c2583d336f58e2d36b2223ad7_JaffaCakes118.exe	82
PID 2100 wrote to memory of 4392	2100	33137b2c2583d336f58e2d36b2223ad7_JaffaCakes118.exe	82
PID 2100 wrote to memory of 4392	2100	33137b2c2583d336f58e2d36b2223ad7_JaffaCakes118.exe	82
PID 4392 wrote to memory of 3520	4392	msccrt.exe	56
PID 4392 wrote to memory of 3520	4392	msccrt.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3520
- C:\Users\Admin\AppData\Local\Temp\33137b2c2583d336f58e2d36b2223ad7_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\33137b2c2583d336f58e2d36b2223ad7_JaffaCakes118.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2100
- - C:\Windows\msccrt.exe
    C:\Windows\msccrt.exe @C:\Users\Admin\AppData\Local\Temp\33137b2c2583d336f58e2d36b2223ad7_JaffaCakes118.exe@2100
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Adds Run key to start application
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4392

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\msccrt.exe

Filesize
13KB

MD5
33137b2c2583d336f58e2d36b2223ad7

SHA1
7ba4164d1eb6ba6abbce100dcf5b2f5f3c3dd6b7

SHA256
cfdaadf7260f935a12d77ba95e4dbbda3273b8b3914efdf03681539ad7a60de8

SHA512
294338c85b5e2e08beb05ff48a8e828f1752508edc76c293702a12fba18e77502959baf2cbda94ba7f27b0e0734306206894ea820f4536f2b0e3b7423850a5f7

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