17e3cd4e87366dd49b48163a452dd8e3e850a52131673fcc275cf460fa199eaa

Analysis

max time kernel
149s
max time network
110s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
06/09/2024, 17:23

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General

Target

d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe
Size

1.9MB
MD5

d01067729fa1115d8d5bbf38b3f4ec3d
SHA1

d7cfbdea47d7fb75ee250fb67fe4c3b42c4ce98c
SHA256

17e3cd4e87366dd49b48163a452dd8e3e850a52131673fcc275cf460fa199eaa
SHA512

bc035368f0584a8179e63e7cf3c1cd2e5f7dc2a02c8b2ce4921c9ea215f99904dd090f7a171aad3d596dc0f61147a1f7dfb83bbe69fc9df79239fb0a11740031
SSDEEP

12288:RFfwcHcu8pMkZ3Fn9d+Vd3SUZ+7EeI1x7f7V3+hT6DaRWz58kc+1xy8SyGU4lD1:RJcu8pl9d+VdCUhN1SsNK+1pSyx4/

Score

10^/10

aspackv2 discovery persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	services.exe

Boot or Logon Autostart Execution: Active Setup 2 TTPs 5 IoCs

Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

persistence

Active Setup

T1547.014

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	services.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x0007000000023457-19.dat	aspack_v212_v242

Executes dropped EXE 2 IoCs

pid	Process
3476	fservice.exe
2780	services.exe

Loads dropped DLL 5 IoCs

pid	Process
2780	services.exe
2780	services.exe
2780	services.exe
3476	fservice.exe
4196	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	services.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\fservice.exe	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File created	C:\Windows\SysWOW64\winkey.dll	services.exe
File created	C:\Windows\SysWOW64\reginv.dll	services.exe

Drops file in Windows directory 7 IoCs

description	ioc	Process
File created	C:\Windows\system\sservice.exe	services.exe
File created	C:\Windows\system\sservice.exe	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe
File opened for modification	C:\Windows\system\sservice.exe	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe
File created	C:\Windows\services.exe	fservice.exe
File opened for modification	C:\Windows\services.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	fservice.exe
File opened for modification	C:\Windows\system\sservice.exe	fservice.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	NET.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NET.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fservice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	services.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe
2780	services.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2780	services.exe
2780	services.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4196 wrote to memory of 3476	4196	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe	83
PID 4196 wrote to memory of 3476	4196	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe	83
PID 4196 wrote to memory of 3476	4196	d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe	83
PID 3476 wrote to memory of 2780	3476	fservice.exe	86
PID 3476 wrote to memory of 2780	3476	fservice.exe	86
PID 3476 wrote to memory of 2780	3476	fservice.exe	86
PID 2780 wrote to memory of 4172	2780	services.exe	88
PID 2780 wrote to memory of 4172	2780	services.exe	88
PID 2780 wrote to memory of 4172	2780	services.exe	88
PID 2780 wrote to memory of 4608	2780	services.exe	89
PID 2780 wrote to memory of 4608	2780	services.exe	89
PID 2780 wrote to memory of 4608	2780	services.exe	89
PID 4172 wrote to memory of 2600	4172	NET.exe	93
PID 4172 wrote to memory of 2600	4172	NET.exe	93
PID 4172 wrote to memory of 2600	4172	NET.exe	93
PID 4608 wrote to memory of 668	4608	NET.exe	92
PID 4608 wrote to memory of 668	4608	NET.exe	92
PID 4608 wrote to memory of 668	4608	NET.exe	92

C:\Users\Admin\AppData\Local\Temp\d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d01067729fa1115d8d5bbf38b3f4ec3d_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Boot or Logon Autostart Execution: Active Setup
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4196
- C:\Windows\SysWOW64\fservice.exe
  C:\Windows\system32\fservice.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3476
- - C:\Windows\services.exe
    C:\Windows\services.exe -XP
    3⤵
    - Modifies WinLogon for persistence
    - Adds policy Run key to start application
    - Boot or Logon Autostart Execution: Active Setup
    - Executes dropped EXE
    - Loads dropped DLL
    - Modifies WinLogon
    - Drops file in System32 directory
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2780
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP srservice
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4172
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP srservice
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2600
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP navapsvc
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4608
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP navapsvc
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:668

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Active Setup

T1547.014

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

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

Replay Monitor

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Downloads

C:\Windows\SysWOW64\fservice.exe

Filesize
1.9MB

MD5
d01067729fa1115d8d5bbf38b3f4ec3d

SHA1
d7cfbdea47d7fb75ee250fb67fe4c3b42c4ce98c

SHA256
17e3cd4e87366dd49b48163a452dd8e3e850a52131673fcc275cf460fa199eaa

SHA512
bc035368f0584a8179e63e7cf3c1cd2e5f7dc2a02c8b2ce4921c9ea215f99904dd090f7a171aad3d596dc0f61147a1f7dfb83bbe69fc9df79239fb0a11740031

Download Submit
C:\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
C:\Windows\SysWOW64\winkey.dll

Filesize
13KB

MD5
b4c72da9fd1a0dcb0698b7da97daa0cd

SHA1
b25a79e8ea4c723c58caab83aed6ea48de7ed759

SHA256
45d266269634ba2de70f179a26d7224111e677e66b38dff2802851b71ce4458f

SHA512
f5f184416c5381d275bc093c9275e9fdb35c58e2c401d188aef097950013de6e43269da5d4dd5e7baea34735bd7de664d15fe487b2292fd66926c9845b0cd066

Download Submit
memory/2780-37-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2780-41-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2780-17-0x00000000025B0000-0x00000000025B1000-memory.dmp

Filesize
4KB

Download
memory/2780-61-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2780-59-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2780-57-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2780-34-0x00000000025B0000-0x00000000025B1000-memory.dmp

Filesize
4KB

Download
memory/2780-36-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/2780-35-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2780-55-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2780-39-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2780-21-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/2780-43-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2780-45-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2780-47-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2780-49-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2780-51-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2780-53-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/3476-32-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/3476-8-0x0000000000BD0000-0x0000000000BD1000-memory.dmp

Filesize
4KB

Download
memory/4196-0-0x00000000025C0000-0x00000000025C1000-memory.dmp

Filesize
4KB

Download
memory/4196-33-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download