f81f93078d2c7da5bf3c9543a81541ed3d99a6125a9a70da350922aee9372cb8

Analysis

max time kernel
149s
max time network
120s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
29/08/2024, 14:40

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General

Target

c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe
Size

342KB
MD5

c906017549ff4943c2b278c3f6622065
SHA1

bddf8afe3c6138a2de2b15866bc4ad3b72f597ed
SHA256

f81f93078d2c7da5bf3c9543a81541ed3d99a6125a9a70da350922aee9372cb8
SHA512

7e3cd2709e26d5d9f13c1eeaaf7f5543a4c727421293fd7c4a2684399f3bb4dcebdd8be7039080cbf83320cc65dcb911666287e06b9fe79690e56f8832c84d5b
SSDEEP

6144:cRqmpp+amNOGokzLyM9tsLAitQo6tzOKkzIt8gKyfjxfR9D2j4y4/0ws:4qmpplpGoGL3etQoMiXM8gxf/Sj4yks

Score

10^/10

aspackv2 discovery persistence upx

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"	c906017549ff4943c2b278c3f6622065_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"	c906017549ff4943c2b278c3f6622065_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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	c906017549ff4943c2b278c3f6622065_JaffaCakes118.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}	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	c906017549ff4943c2b278c3f6622065_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"	c906017549ff4943c2b278c3f6622065_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

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x00090000000174a8-27.dat	aspack_v212_v242

Deletes itself 1 IoCs

pid	Process
2664	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2456	fservice.exe
1224	services.exe

Loads dropped DLL 6 IoCs

pid	Process
308	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe
308	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe
1224	services.exe
1224	services.exe
2456	fservice.exe
308	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe

UPX packed file 22 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/308-0-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/files/0x000f000000013423-6.dat	upx
behavioral1/memory/308-13-0x0000000003540000-0x000000000373C000-memory.dmp	upx
behavioral1/memory/2456-21-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-26-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/2456-47-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/308-49-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-52-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-53-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-56-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-58-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-60-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-62-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-64-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-66-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-68-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-70-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-72-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-74-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-76-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-78-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1224-80-0x0000000000400000-0x00000000005FC000-memory.dmp	upx

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\	services.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	c906017549ff4943c2b278c3f6622065_JaffaCakes118.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	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	c906017549ff4943c2b278c3f6622065_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 8 IoCs

description	ioc	Process
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
File opened for modification	C:\Windows\system\sservice.exe	services.exe
File created	C:\Windows\system\sservice.exe	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe
File opened for modification	C:\Windows\system\sservice.exe	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe
File created	C:\Windows\services.exe	fservice.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	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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c906017549ff4943c2b278c3f6622065_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	NET.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe
1224	services.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1224	services.exe
1224	services.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 308 wrote to memory of 2456	308	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe	31
PID 308 wrote to memory of 2456	308	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe	31
PID 308 wrote to memory of 2456	308	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe	31
PID 308 wrote to memory of 2456	308	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe	31
PID 2456 wrote to memory of 1224	2456	fservice.exe	32
PID 2456 wrote to memory of 1224	2456	fservice.exe	32
PID 2456 wrote to memory of 1224	2456	fservice.exe	32
PID 2456 wrote to memory of 1224	2456	fservice.exe	32
PID 1224 wrote to memory of 2720	1224	services.exe	33
PID 1224 wrote to memory of 2720	1224	services.exe	33
PID 1224 wrote to memory of 2720	1224	services.exe	33
PID 1224 wrote to memory of 2720	1224	services.exe	33
PID 1224 wrote to memory of 2096	1224	services.exe	34
PID 1224 wrote to memory of 2096	1224	services.exe	34
PID 1224 wrote to memory of 2096	1224	services.exe	34
PID 1224 wrote to memory of 2096	1224	services.exe	34
PID 2096 wrote to memory of 2740	2096	NET.exe	38
PID 2096 wrote to memory of 2740	2096	NET.exe	38
PID 2096 wrote to memory of 2740	2096	NET.exe	38
PID 2096 wrote to memory of 2740	2096	NET.exe	38
PID 2720 wrote to memory of 2776	2720	NET.exe	37
PID 2720 wrote to memory of 2776	2720	NET.exe	37
PID 2720 wrote to memory of 2776	2720	NET.exe	37
PID 2720 wrote to memory of 2776	2720	NET.exe	37
PID 308 wrote to memory of 2664	308	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe	39
PID 308 wrote to memory of 2664	308	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe	39
PID 308 wrote to memory of 2664	308	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe	39
PID 308 wrote to memory of 2664	308	c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe	39

C:\Users\Admin\AppData\Local\Temp\c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c906017549ff4943c2b278c3f6622065_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:308
- 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:2456
- - 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:1224
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP srservice
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2720
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP srservice
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2776
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP navapsvc
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2096
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP navapsvc
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2740
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2664

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\c906017549ff4943c2b278c3f6622065_JaffaCakes118.exe.bat

Filesize
133B

MD5
c5e3c3d21dbf7dc36504ec029913ecd9

SHA1
3eb7c907e6698c69271c8c4d0634dc7ffb1a1d1e

SHA256
46b93547853aca958ce0c8dd2472c7fe8629314989be8b620d6c6375cccd0ffa

SHA512
ad5ce91b49e4a60f4290f3dace25e02fefdcf3bd74c9d97da6f633f07087777d85c8c5ed7bb89abf41ea839c917747bd5212ac3ac859d142f226850679288e45

Download Submit
\Windows\SysWOW64\fservice.exe

Filesize
342KB

MD5
c906017549ff4943c2b278c3f6622065

SHA1
bddf8afe3c6138a2de2b15866bc4ad3b72f597ed

SHA256
f81f93078d2c7da5bf3c9543a81541ed3d99a6125a9a70da350922aee9372cb8

SHA512
7e3cd2709e26d5d9f13c1eeaaf7f5543a4c727421293fd7c4a2684399f3bb4dcebdd8be7039080cbf83320cc65dcb911666287e06b9fe79690e56f8832c84d5b

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/308-1-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/308-13-0x0000000003540000-0x000000000373C000-memory.dmp

Filesize
2.0MB

Download
memory/308-0-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/308-49-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-55-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1224-66-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-30-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1224-31-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/1224-80-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-26-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-78-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-52-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-76-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-54-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/1224-53-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-56-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-58-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-60-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-62-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-64-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-74-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-68-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-70-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1224-72-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/2456-29-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2456-21-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/2456-24-0x0000000003290000-0x000000000348C000-memory.dmp

Filesize
2.0MB

Download
memory/2456-47-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download