6e4bf336fc01eba39f056b922d8ea03eb05906b0e120254435178102d99fe824

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
09/09/2024, 23:06

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General

Target

d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe
Size

342KB
MD5

d73e045afd9fd7ddf3c3d1eae97a0e9e
SHA1

2639d570d2bf97a275b15de7817570d30f85b4b5
SHA256

6e4bf336fc01eba39f056b922d8ea03eb05906b0e120254435178102d99fe824
SHA512

d5ebd606858db729934707b1dd2a75e545e407c18f9cf26156e70d49faa13377780b9a22cfce766594ecd9db3c46aae7aa34de748c933497a756b966a3ced6ff
SSDEEP

6144:IRqmpp+amNOGokzLyM9tsLAitQo6tzOKkzIt8gKyfjxfR9D2j4y+SEaH:sqmpplpGoGL3etQoMiXM8gxf/Sj4y+SV

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"	d73e045afd9fd7ddf3c3d1eae97a0e9e_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	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	d73e045afd9fd7ddf3c3d1eae97a0e9e_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}	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	d73e045afd9fd7ddf3c3d1eae97a0e9e_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"	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x0009000000017349-29.dat	aspack_v212_v242

Deletes itself 1 IoCs

pid	Process
2772	cmd.exe

Executes dropped EXE 2 IoCs

pid	Process
2160	fservice.exe
1980	services.exe

Loads dropped DLL 6 IoCs

pid	Process
2424	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe
2424	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe
1980	services.exe
1980	services.exe
2160	fservice.exe
2424	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe

UPX packed file 21 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2424-0-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/files/0x000a0000000120d5-7.dat	upx
behavioral1/memory/2160-24-0x0000000003340000-0x000000000353C000-memory.dmp	upx
behavioral1/memory/1980-25-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/2160-46-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/2424-49-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-52-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-54-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-56-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-58-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-60-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-62-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-64-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-66-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-68-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-70-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-72-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-74-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-76-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-78-0x0000000000400000-0x00000000005FC000-memory.dmp	upx
behavioral1/memory/1980-80-0x0000000000400000-0x00000000005FC000-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\	d73e045afd9fd7ddf3c3d1eae97a0e9e_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\reginv.dll	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	d73e045afd9fd7ddf3c3d1eae97a0e9e_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

Drops file in Windows directory 8 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\sservice.exe	services.exe
File created	C:\Windows\system\sservice.exe	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe
File opened for modification	C:\Windows\system\sservice.exe	d73e045afd9fd7ddf3c3d1eae97a0e9e_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	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d73e045afd9fd7ddf3c3d1eae97a0e9e_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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NET.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe
1980	services.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1980	services.exe
1980	services.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2424 wrote to memory of 2160	2424	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe	30
PID 2424 wrote to memory of 2160	2424	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe	30
PID 2424 wrote to memory of 2160	2424	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe	30
PID 2424 wrote to memory of 2160	2424	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe	30
PID 2160 wrote to memory of 1980	2160	fservice.exe	31
PID 2160 wrote to memory of 1980	2160	fservice.exe	31
PID 2160 wrote to memory of 1980	2160	fservice.exe	31
PID 2160 wrote to memory of 1980	2160	fservice.exe	31
PID 1980 wrote to memory of 2508	1980	services.exe	32
PID 1980 wrote to memory of 2508	1980	services.exe	32
PID 1980 wrote to memory of 2508	1980	services.exe	32
PID 1980 wrote to memory of 2508	1980	services.exe	32
PID 1980 wrote to memory of 2704	1980	services.exe	33
PID 1980 wrote to memory of 2704	1980	services.exe	33
PID 1980 wrote to memory of 2704	1980	services.exe	33
PID 1980 wrote to memory of 2704	1980	services.exe	33
PID 2424 wrote to memory of 2772	2424	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe	36
PID 2424 wrote to memory of 2772	2424	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe	36
PID 2424 wrote to memory of 2772	2424	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe	36
PID 2424 wrote to memory of 2772	2424	d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe	36
PID 2508 wrote to memory of 2824	2508	NET.exe	37
PID 2508 wrote to memory of 2824	2508	NET.exe	37
PID 2508 wrote to memory of 2824	2508	NET.exe	37
PID 2508 wrote to memory of 2824	2508	NET.exe	37
PID 2704 wrote to memory of 2804	2704	NET.exe	38
PID 2704 wrote to memory of 2804	2704	NET.exe	38
PID 2704 wrote to memory of 2804	2704	NET.exe	38
PID 2704 wrote to memory of 2804	2704	NET.exe	38

C:\Users\Admin\AppData\Local\Temp\d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d73e045afd9fd7ddf3c3d1eae97a0e9e_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:2424
- 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:2160
- - 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:1980
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP srservice
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2508
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP srservice
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2824
  - - C:\Windows\SysWOW64\NET.exe
      NET STOP navapsvc
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2704
    - - C:\Windows\SysWOW64\net1.exe
        
        C:\Windows\system32\net1 STOP navapsvc
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2804
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Users\Admin\AppData\Local\Temp\d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe.bat
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2772

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\d73e045afd9fd7ddf3c3d1eae97a0e9e_JaffaCakes118.exe.bat

Filesize
133B

MD5
b373e5b297ab17e5efa2d27d802017c4

SHA1
8b294dfed3ecc13f0c62ee0652117e9356b6ea92

SHA256
1c1a144c1036bbeae13287bfe1c6a317c489484907c4c5aeaa77fbfe9e035b76

SHA512
fae8087d1e6486c6a785bd2ecbc8dc75e7d5e190de7facce94a657081bf1758956a32c9366de2644a503b4ec99e34442537e811634b4267b5b5622355dd937ce

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

Filesize
342KB

MD5
d73e045afd9fd7ddf3c3d1eae97a0e9e

SHA1
2639d570d2bf97a275b15de7817570d30f85b4b5

SHA256
6e4bf336fc01eba39f056b922d8ea03eb05906b0e120254435178102d99fe824

SHA512
d5ebd606858db729934707b1dd2a75e545e407c18f9cf26156e70d49faa13377780b9a22cfce766594ecd9db3c46aae7aa34de748c933497a756b966a3ced6ff

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/1980-62-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-66-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-80-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-28-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1980-78-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-25-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-31-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/1980-76-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-74-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-72-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-70-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-52-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-53-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1980-54-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-56-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-58-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-60-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-68-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/1980-64-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/2160-24-0x0000000003340000-0x000000000353C000-memory.dmp

Filesize
2.0MB

Download
memory/2160-46-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/2160-26-0x0000000003340000-0x000000000353C000-memory.dmp

Filesize
2.0MB

Download
memory/2160-14-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2424-0-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/2424-49-0x0000000000400000-0x00000000005FC000-memory.dmp

Filesize
2.0MB

Download
memory/2424-1-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2424-12-0x00000000033C0000-0x00000000035BC000-memory.dmp

Filesize
2.0MB

Download