036a39a60d6447338c92ebae426124e4c93920d64ddecf73f5c1b290924a4f59

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
13/07/2024, 20:47

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General

Target

43478d28704cadc0db6571dc2e6fa96f_JaffaCakes118.exe
Size

13KB
MD5

43478d28704cadc0db6571dc2e6fa96f
SHA1

b62680eacb847f98a53af00901eafac6b287ef2b
SHA256

036a39a60d6447338c92ebae426124e4c93920d64ddecf73f5c1b290924a4f59
SHA512

ca2e5fac347ba8a03b351531787528644eae85dc032b9bfccf3e254397bddb992b33c88b2fe9de17bd23e1ae2805f5626d600ebe12fb29c98bca3b2f95edbcfc
SSDEEP

192:T2Uq4pEMfiymuqbjzDbiZFGyknlLfP1oynG0JS0ATUBb9Lru8LTP3N:KX4lfiymuqbPqFAnlb1jkUt9Lru0TP9

Score

7^/10

persistence

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2864	wsttrs.exe

Executes dropped EXE 1 IoCs

pid	Process
2864	wsttrs.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\wsttrs = "C:\\Windows\\wsttrs.exe"	wsttrs.exe

Drops file in System32 directory 1 IoCs

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

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\wsttrs.exe	43478d28704cadc0db6571dc2e6fa96f_JaffaCakes118.exe
File opened for modification	C:\Windows\wsttrs.exe	43478d28704cadc0db6571dc2e6fa96f_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2864	wsttrs.exe
2864	wsttrs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2100	43478d28704cadc0db6571dc2e6fa96f_JaffaCakes118.exe
Token: SeDebugPrivilege	2864	wsttrs.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2864	2100	43478d28704cadc0db6571dc2e6fa96f_JaffaCakes118.exe	84
PID 2100 wrote to memory of 2864	2100	43478d28704cadc0db6571dc2e6fa96f_JaffaCakes118.exe	84
PID 2100 wrote to memory of 2864	2100	43478d28704cadc0db6571dc2e6fa96f_JaffaCakes118.exe	84
PID 2864 wrote to memory of 3460	2864	wsttrs.exe	56
PID 2864 wrote to memory of 3460	2864	wsttrs.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3460
- C:\Users\Admin\AppData\Local\Temp\43478d28704cadc0db6571dc2e6fa96f_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\43478d28704cadc0db6571dc2e6fa96f_JaffaCakes118.exe"
  2⤵
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2100
- - C:\Windows\wsttrs.exe
    C:\Windows\wsttrs.exe @C:\Users\Admin\AppData\Local\Temp\43478d28704cadc0db6571dc2e6fa96f_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:2864

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\wsttrs.exe

Filesize
13KB

MD5
43478d28704cadc0db6571dc2e6fa96f

SHA1
b62680eacb847f98a53af00901eafac6b287ef2b

SHA256
036a39a60d6447338c92ebae426124e4c93920d64ddecf73f5c1b290924a4f59

SHA512
ca2e5fac347ba8a03b351531787528644eae85dc032b9bfccf3e254397bddb992b33c88b2fe9de17bd23e1ae2805f5626d600ebe12fb29c98bca3b2f95edbcfc

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