2c9edd0e5e5a492348a0f78ba8c99badd222423af772d945f78750d496860d02

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
09-07-2024 03:21

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General

Target

2ed1da00d9b8942bf57b193d8bea918b_JaffaCakes118.exe
Size

770KB
MD5

2ed1da00d9b8942bf57b193d8bea918b
SHA1

112398a9bb039be6a04f47e7f2d81924219f3ce6
SHA256

2c9edd0e5e5a492348a0f78ba8c99badd222423af772d945f78750d496860d02
SHA512

2cb0738d877785deb39ad7db0c95d5eaac0a8c406c16b8c8b2b0b30a25b89be6869c1a9f4a09c3baa7ef1a705c3ba5a746fb365989f8171522f94b4139c169bf
SSDEEP

12288:GWHD328+Z71u3FxsdnQSNZ9X5NIPQvQQP/3:GoD9+ZY3FSNXcPQ4QH

Score

10^/10

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"	2ed1da00d9b8942bf57b193d8bea918b_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	2ed1da00d9b8942bf57b193d8bea918b_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	2ed1da00d9b8942bf57b193d8bea918b_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}\	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}	2ed1da00d9b8942bf57b193d8bea918b_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	2ed1da00d9b8942bf57b193d8bea918b_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"	2ed1da00d9b8942bf57b193d8bea918b_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
5028	fservice.exe
1000	services.exe

Loads dropped DLL 3 IoCs

pid	Process
1000	services.exe
1000	services.exe
1000	services.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\	2ed1da00d9b8942bf57b193d8bea918b_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	2ed1da00d9b8942bf57b193d8bea918b_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	2ed1da00d9b8942bf57b193d8bea918b_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 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	2ed1da00d9b8942bf57b193d8bea918b_JaffaCakes118.exe
File opened for modification	C:\Windows\system\sservice.exe	2ed1da00d9b8942bf57b193d8bea918b_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

Runs net.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe
1000	services.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1000	services.exe
1000	services.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4728 wrote to memory of 5028	4728	2ed1da00d9b8942bf57b193d8bea918b_JaffaCakes118.exe	85
PID 4728 wrote to memory of 5028	4728	2ed1da00d9b8942bf57b193d8bea918b_JaffaCakes118.exe	85
PID 4728 wrote to memory of 5028	4728	2ed1da00d9b8942bf57b193d8bea918b_JaffaCakes118.exe	85
PID 5028 wrote to memory of 1000	5028	fservice.exe	86
PID 5028 wrote to memory of 1000	5028	fservice.exe	86
PID 5028 wrote to memory of 1000	5028	fservice.exe	86
PID 1000 wrote to memory of 4108	1000	services.exe	87
PID 1000 wrote to memory of 4108	1000	services.exe	87
PID 1000 wrote to memory of 4108	1000	services.exe	87
PID 1000 wrote to memory of 3464	1000	services.exe	88
PID 1000 wrote to memory of 3464	1000	services.exe	88
PID 1000 wrote to memory of 3464	1000	services.exe	88
PID 3464 wrote to memory of 3332	3464	NET.exe	91
PID 3464 wrote to memory of 3332	3464	NET.exe	91
PID 3464 wrote to memory of 3332	3464	NET.exe	91
PID 4108 wrote to memory of 4032	4108	NET.exe	92
PID 4108 wrote to memory of 4032	4108	NET.exe	92
PID 4108 wrote to memory of 4032	4108	NET.exe	92

C:\Users\Admin\AppData\Local\Temp\2ed1da00d9b8942bf57b193d8bea918b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\2ed1da00d9b8942bf57b193d8bea918b_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Boot or Logon Autostart Execution: Active Setup
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4728
- C:\Windows\SysWOW64\fservice.exe
  C:\Windows\system32\fservice.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:5028
- - 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
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1000
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP srservice
      4⤵
      Suspicious use of WriteProcessMemory
      PID:4108
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP srservice
        5⤵
        
        PID:4032
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP navapsvc
      4⤵
      Suspicious use of WriteProcessMemory
      PID:3464
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP navapsvc
        5⤵
        
        PID:3332

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\fservice.exe

Filesize
770KB

MD5
2ed1da00d9b8942bf57b193d8bea918b

SHA1
112398a9bb039be6a04f47e7f2d81924219f3ce6

SHA256
2c9edd0e5e5a492348a0f78ba8c99badd222423af772d945f78750d496860d02

SHA512
2cb0738d877785deb39ad7db0c95d5eaac0a8c406c16b8c8b2b0b30a25b89be6869c1a9f4a09c3baa7ef1a705c3ba5a746fb365989f8171522f94b4139c169bf

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

Filesize
36KB

MD5
d4a3f90e159ffbcbc4f9740de4b7f171

SHA1
0542f5d1e2c23dca8d90766b3a8537dc3880e5c9

SHA256
2200dd5f83d2fb8c5d3994206a4fa9ff34b4cbfe56ed39a9a03c954cf45d8f77

SHA512
5493beb50b5f7d8ec52f32718d01696916ae173456005d0c1294ce695161ce5004aff58ee3892bf5db0f9b23720146a6d3ae8ffbcbbd81f84d894fdc8cf75a94

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

Filesize
24KB

MD5
43e7d9b875c921ba6be38d45540fb9dd

SHA1
f22a73fc0d4aa3ea6c0b8f61d974b028f308acc4

SHA256
f1b2b0abe844e6ba812c7f8709a463a7f6c56fa6ac38d376a0739cc3469f795b

SHA512
2e74e23c0875b69b82319391c392132f28f4eb45aa412805130382498ae48969a06a2b3a7528b626fa7d7ddb6b006f19f0ef8d73cf73cb9a0c0df44a21077622

Download Submit
memory/1000-24-0x0000000000400000-0x00000000009D6000-memory.dmp

Filesize
5.8MB

Download
memory/1000-43-0x00000000059C0000-0x00000000059C1000-memory.dmp

Filesize
4KB

Download
memory/1000-41-0x0000000000400000-0x00000000009D6000-memory.dmp

Filesize
5.8MB

Download
memory/1000-29-0x00000000059C0000-0x00000000059C1000-memory.dmp

Filesize
4KB

Download
memory/1000-25-0x0000000002D40000-0x0000000002E30000-memory.dmp

Filesize
960KB

Download
memory/4728-13-0x0000000000400000-0x00000000009D6000-memory.dmp

Filesize
5.8MB

Download
memory/4728-14-0x0000000002980000-0x0000000002A70000-memory.dmp

Filesize
960KB

Download
memory/4728-0-0x0000000000400000-0x00000000009D6000-memory.dmp

Filesize
5.8MB

Download
memory/4728-2-0x00000000034F0000-0x00000000034F1000-memory.dmp

Filesize
4KB

Download
memory/4728-1-0x0000000002980000-0x0000000002A70000-memory.dmp

Filesize
960KB

Download
memory/5028-15-0x00000000055D0000-0x00000000055D1000-memory.dmp

Filesize
4KB

Download
memory/5028-28-0x00000000028D0000-0x00000000029C0000-memory.dmp

Filesize
960KB

Download
memory/5028-27-0x0000000000400000-0x00000000009D6000-memory.dmp

Filesize
5.8MB

Download
memory/5028-11-0x00000000028D0000-0x00000000029C0000-memory.dmp

Filesize
960KB

Download
memory/5028-10-0x0000000000400000-0x00000000009D6000-memory.dmp

Filesize
5.8MB

Download