36510a5c3f13af50228d0a37dc7c6f3d564dcbaeb1852633df2776bab5157d02

Analysis

max time kernel
140s
max time network
120s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
05/05/2024, 08:03

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General

Target

16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe
Size

1.9MB
MD5

16bae080cc321c88aa0a527c14881b6d
SHA1

60cc6a48984fec36f8724c836c5a15565af291d3
SHA256

36510a5c3f13af50228d0a37dc7c6f3d564dcbaeb1852633df2776bab5157d02
SHA512

464179c016eee5d6b0dda83157bfec8d7daa0eedefcdc623c31c69ed927bdc1a7f9e0dd50bba6ae88e06ca800e415a9d6e8374076b711618a76f33b6a7707da6
SSDEEP

12288:RFfwcHcu8pMkZ3Fn9d+Vd3SUZ+7EeI1x7f7V3+hT6DaRWz58kc+1xy8SyGF4Oc:RJcu8pl9d+VdCUhN1SsNK+1pSyA4f

Score

10^/10

aspackv2 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"	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	services.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	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	16bae080cc321c88aa0a527c14881b6d_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

Modifies Installed Components in the registry 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
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}	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	16bae080cc321c88aa0a527c14881b6d_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"	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x000700000001418c-24.dat	aspack_v212_v242

Deletes itself 1 IoCs

pid	Process
856	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2248	fservice.exe
2484	services.exe

Loads dropped DLL 7 IoCs

pid	Process
2240	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe
2240	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe
2484	services.exe
2484	services.exe
2248	fservice.exe
2240	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe
2376	WerFault.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\	16bae080cc321c88aa0a527c14881b6d_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	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	16bae080cc321c88aa0a527c14881b6d_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	fservice.exe
File opened for modification	C:\Windows\system\sservice.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	services.exe
File created	C:\Windows\system\sservice.exe	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe
File opened for modification	C:\Windows\system\sservice.exe	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe
File created	C:\Windows\services.exe	fservice.exe
File opened for modification	C:\Windows\services.exe	fservice.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2376	2484	WerFault.exe	29

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2484	services.exe
2484	services.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2484	services.exe
2484	services.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 2248	2240	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe	28
PID 2240 wrote to memory of 2248	2240	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe	28
PID 2240 wrote to memory of 2248	2240	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe	28
PID 2240 wrote to memory of 2248	2240	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe	28
PID 2248 wrote to memory of 2484	2248	fservice.exe	29
PID 2248 wrote to memory of 2484	2248	fservice.exe	29
PID 2248 wrote to memory of 2484	2248	fservice.exe	29
PID 2248 wrote to memory of 2484	2248	fservice.exe	29
PID 2484 wrote to memory of 2620	2484	services.exe	30
PID 2484 wrote to memory of 2620	2484	services.exe	30
PID 2484 wrote to memory of 2620	2484	services.exe	30
PID 2484 wrote to memory of 2620	2484	services.exe	30
PID 2484 wrote to memory of 2584	2484	services.exe	31
PID 2484 wrote to memory of 2584	2484	services.exe	31
PID 2484 wrote to memory of 2584	2484	services.exe	31
PID 2484 wrote to memory of 2584	2484	services.exe	31
PID 2620 wrote to memory of 2688	2620	NET.exe	34
PID 2620 wrote to memory of 2688	2620	NET.exe	34
PID 2620 wrote to memory of 2688	2620	NET.exe	34
PID 2620 wrote to memory of 2688	2620	NET.exe	34
PID 2584 wrote to memory of 2408	2584	NET.exe	35
PID 2584 wrote to memory of 2408	2584	NET.exe	35
PID 2584 wrote to memory of 2408	2584	NET.exe	35
PID 2584 wrote to memory of 2408	2584	NET.exe	35
PID 2484 wrote to memory of 2376	2484	services.exe	36
PID 2484 wrote to memory of 2376	2484	services.exe	36
PID 2484 wrote to memory of 2376	2484	services.exe	36
PID 2484 wrote to memory of 2376	2484	services.exe	36
PID 2240 wrote to memory of 856	2240	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe	37
PID 2240 wrote to memory of 856	2240	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe	37
PID 2240 wrote to memory of 856	2240	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe	37
PID 2240 wrote to memory of 856	2240	16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe	37

C:\Users\Admin\AppData\Local\Temp\16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Modifies Installed Components in the registry
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2240
- 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
  - Suspicious use of WriteProcessMemory
  PID:2248
- - C:\Windows\services.exe
    C:\Windows\services.exe -XP
    3⤵
    - Modifies WinLogon for persistence
    - Adds policy Run key to start application
    - Modifies Installed Components in the registry
    - Executes dropped EXE
    - Loads dropped DLL
    - Modifies WinLogon
    - Drops file in System32 directory
    - Drops file in Windows directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2484
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP srservice
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2620
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP srservice
        5⤵
        
        PID:2688
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP navapsvc
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2584
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP navapsvc
        5⤵
        
        PID:2408
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2484 -s 600
      4⤵
      Loads dropped DLL
      Program crash
      PID:2376
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  PID:856

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

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\16bae080cc321c88aa0a527c14881b6d_JaffaCakes118.exe.bat

Filesize
133B

MD5
30ccff6daab0d697786f17c2d412d859

SHA1
5b9dc3a53b57afa5f9b393cf2b846cfa4c70f7d4

SHA256
b4b8c470c38c637ff863c06cdf284e6ff421768a5bdc59d896d3da54ffec5e87

SHA512
e7f6e1b14035eacdeac359eae32fb31b32c82cbe2d1dfbc95bed037a9ee9b1ac945cc4f01b70f1a2fc4d9d4e7ba7ade874aaee9424f94858f5975ec37bb8eca3

Download Submit
\Windows\SysWOW64\fservice.exe

Filesize
1.9MB

MD5
16bae080cc321c88aa0a527c14881b6d

SHA1
60cc6a48984fec36f8724c836c5a15565af291d3

SHA256
36510a5c3f13af50228d0a37dc7c6f3d564dcbaeb1852633df2776bab5157d02

SHA512
464179c016eee5d6b0dda83157bfec8d7daa0eedefcdc623c31c69ed927bdc1a7f9e0dd50bba6ae88e06ca800e415a9d6e8374076b711618a76f33b6a7707da6

Download Submit
\Windows\SysWOW64\reginv.dll

Filesize
36KB

MD5
562e0d01d6571fa2251a1e9f54c6cc69

SHA1
83677ad3bc630aa6327253c7b3deffbd4a8ce905

SHA256
c5b1d800c86d550c0b68c57c0d9911c1dd21df9e5e37e9e7bc032b5e66fdebe6

SHA512
166e132432eca24061f7e7d0c58c0b286e971ae2bc50f7c890b7707dd5dede19fcd83a5f79b6fd3f93dd691e07ad9bc1bd05fe82ccaade1610282188571585ea

Download Submit
\Windows\SysWOW64\winkey.dll

Filesize
13KB

MD5
b4c72da9fd1a0dcb0698b7da97daa0cd

SHA1
b25a79e8ea4c723c58caab83aed6ea48de7ed759

SHA256
45d266269634ba2de70f179a26d7224111e677e66b38dff2802851b71ce4458f

SHA512
f5f184416c5381d275bc093c9275e9fdb35c58e2c401d188aef097950013de6e43269da5d4dd5e7baea34735bd7de664d15fe487b2292fd66926c9845b0cd066

Download Submit
memory/2240-0-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2240-47-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2240-37-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2248-12-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2248-33-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2484-22-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2484-38-0x0000000000400000-0x00000000005F8000-memory.dmp

Filesize
2.0MB

Download
memory/2484-39-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/2484-26-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/2484-51-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download