1e3d69d6f9ebf78d3b5e56aca294efdfef3ab58d6dafe72a46ff708bdaefbeac

Analysis

max time kernel
149s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2024, 07:08

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General

Target

38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe
Size

480KB
MD5

38f2a8285c0b00b6a7f0bc886a53c343
SHA1

1b6596648566e7a56d06df152cbb063ab699dd30
SHA256

1e3d69d6f9ebf78d3b5e56aca294efdfef3ab58d6dafe72a46ff708bdaefbeac
SHA512

c1bf1abbdf47005a62d5f81460be7a5eef86d8f29a0760e25047ad0e604fc1a0a3382d6d0c89e764636ab67ae9ee75846275fb14665ed54791ae63e508d2202a
SSDEEP

6144:lYb5LrTtMEcnztMYkqy/lEYdx+aj1tU++bzl8X4icn/L+TooFG6rQKN8Q2ZGStEj:gTPSPNTY/EDEyLiooorKWvEHD

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"	38f2a8285c0b00b6a7f0bc886a53c343_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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	services.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	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}	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	38f2a8285c0b00b6a7f0bc886a53c343_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"	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x0008000000023cc2-35.dat	aspack_v212_v242

Executes dropped EXE 2 IoCs

pid	Process
3700	fservice.exe
228	services.exe

Loads dropped DLL 3 IoCs

pid	Process
228	services.exe
228	services.exe
228	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\	38f2a8285c0b00b6a7f0bc886a53c343_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\winkey.dll	services.exe
File created	C:\Windows\SysWOW64\reginv.dll	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	fservice.exe

Drops file in Windows directory 7 IoCs

description	ioc	Process
File created	C:\Windows\system\sservice.exe	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe
File opened for modification	C:\Windows\system\sservice.exe	38f2a8285c0b00b6a7f0bc886a53c343_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
File created	C:\Windows\system\sservice.exe	services.exe

System Location Discovery: System Language Discovery 1 TTPs 8 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	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fservice.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	services.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
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

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	fservice.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	fservice.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	services.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	fservice.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe
228	services.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
228	services.exe
228	services.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1088 wrote to memory of 3700	1088	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe	86
PID 1088 wrote to memory of 3700	1088	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe	86
PID 1088 wrote to memory of 3700	1088	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe	86
PID 3700 wrote to memory of 228	3700	fservice.exe	87
PID 3700 wrote to memory of 228	3700	fservice.exe	87
PID 3700 wrote to memory of 228	3700	fservice.exe	87
PID 1088 wrote to memory of 4060	1088	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe	88
PID 1088 wrote to memory of 4060	1088	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe	88
PID 1088 wrote to memory of 4060	1088	38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe	88
PID 228 wrote to memory of 1640	228	services.exe	90
PID 228 wrote to memory of 1640	228	services.exe	90
PID 228 wrote to memory of 1640	228	services.exe	90
PID 228 wrote to memory of 5068	228	services.exe	91
PID 228 wrote to memory of 5068	228	services.exe	91
PID 228 wrote to memory of 5068	228	services.exe	91
PID 1640 wrote to memory of 3816	1640	NET.exe	94
PID 1640 wrote to memory of 3816	1640	NET.exe	94
PID 1640 wrote to memory of 3816	1640	NET.exe	94
PID 5068 wrote to memory of 2508	5068	NET.exe	95
PID 5068 wrote to memory of 2508	5068	NET.exe	95
PID 5068 wrote to memory of 2508	5068	NET.exe	95

C:\Users\Admin\AppData\Local\Temp\38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\38f2a8285c0b00b6a7f0bc886a53c343_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
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1088
- C:\Windows\SysWOW64\fservice.exe
  C:\Windows\system32\fservice.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3700
- - 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
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:228
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP srservice
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1640
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP srservice
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:3816
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP navapsvc
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:5068
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP navapsvc
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2508
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe.bat
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4060

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:\Users\Admin\AppData\Local\Temp\38f2a8285c0b00b6a7f0bc886a53c343_JaffaCakes118.exe.bat

Filesize
133B

MD5
500a10dd1699bdb0e3c6f27f43f347c3

SHA1
0a7b286437c685267a45da6393e827ca87274966

SHA256
01c42b3757ab6a2a96f3019e0e6283651b1f5ba97a116a6bb7d37609328fa4ac

SHA512
8887034f2cab8a1ca95cbfc818492fcdb63b0d86ae98d495ac1555f7e3c6382ffa2bcccce07d0bcde90b4f5df863ee2f82ca423d437ec21e8eca4f3671a4a16b

Download Submit
C:\Windows\SysWOW64\fservice.exe

Filesize
480KB

MD5
38f2a8285c0b00b6a7f0bc886a53c343

SHA1
1b6596648566e7a56d06df152cbb063ab699dd30

SHA256
1e3d69d6f9ebf78d3b5e56aca294efdfef3ab58d6dafe72a46ff708bdaefbeac

SHA512
c1bf1abbdf47005a62d5f81460be7a5eef86d8f29a0760e25047ad0e604fc1a0a3382d6d0c89e764636ab67ae9ee75846275fb14665ed54791ae63e508d2202a

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/228-52-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-56-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-72-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-70-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-68-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-66-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-64-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-62-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-60-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-58-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-32-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-54-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-50-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-37-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/228-48-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-45-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/228-47-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/228-46-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/1088-31-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/1088-2-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/1088-0-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/1088-3-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/1088-5-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/1088-26-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/1088-1-0x00000000005F8000-0x00000000005F9000-memory.dmp

Filesize
4KB

Download
memory/1088-10-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/1088-4-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/1088-12-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/3700-27-0x0000000000400000-0x0000000000615000-memory.dmp

Filesize
2.1MB

Download
memory/3700-28-0x0000000000AD0000-0x0000000000B00000-memory.dmp

Filesize
192KB

Download
memory/3700-29-0x0000000000B40000-0x0000000000B43000-memory.dmp

Filesize
12KB

Download