metasploit | 82b10e0f46ca7b53146f8f05fec13fc149af4e766c854ca01990b55842424994

Analysis

max time kernel
140s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
28/03/2025, 12:56

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General

Target

JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
Size

132KB
MD5

8aaf6135f756324620c10c7cff249462
SHA1

57b2110f4e7b4809a23c68299bdd9ab72b315ff7
SHA256

82b10e0f46ca7b53146f8f05fec13fc149af4e766c854ca01990b55842424994
SHA512

513b6f98fb13691abc07dbbe308429cb848655fb93cdb0d536e80f4fa3c6ffe1c7871be0b048687c7f4a126be7ba6573ac688d03a0fcc29de8915b45a937269d
SSDEEP

3072:Ou3tma0Z2lcQjpLmQt+FtOgFPGy7QTm5vOTPuf8NrGL+zS35ivT:p3tmaAkNDt+FtOgFPh7QTm5vOTUSrGLw

Score

10^/10

metasploit backdoor defense_evasion discovery persistence trojan upx

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
trojan backdoor metasploit
Metasploit family
metasploit

Modifies firewall policy service 3 TTPs 8 IoCs

defense_evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpkc32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkc32.exe = "C:\\Windows\\SysWOW64\\wmpkc32.exe:*:Enabled:WinMedia Config"	wmpkc32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpkc32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpkc32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpkc32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkc32.exe = "C:\\Windows\\SysWOW64\\wmpkc32.exe:*:Enabled:WinMedia Config"	wmpkc32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpkc32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpkc32.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
Key value queried	\REGISTRY\USER\S-1-5-21-308834014-1004923324-1191300197-1000\Control Panel\International\Geo\Nation	wmpkc32.exe

Deletes itself 1 IoCs

pid	Process
4260	wmpkc32.exe

Executes dropped EXE 4 IoCs

pid	Process
1700	wmpkc32.exe
4260	wmpkc32.exe
1744	wmpkc32.exe
3372	wmpkc32.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WinMedia Config = "C:\\Windows\\SysWOW64\\wmpkc32.exe"	wmpkc32.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Maps connected drives based on registry 3 TTPs 6 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpkc32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpkc32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpkc32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpkc32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
File opened for modification	C:\Windows\SysWOW64\wmpkc32.exe	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
File created	C:\Windows\SysWOW64\wmpkc32.exe	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
File opened for modification	C:\Windows\SysWOW64\	wmpkc32.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 5620 set thread context of 5180	5620	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	85
PID 1700 set thread context of 4260	1700	wmpkc32.exe	97
PID 1744 set thread context of 3372	1744	wmpkc32.exe	101

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5180-0-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/5180-2-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/5180-3-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/5180-4-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/5180-31-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/5180-41-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4260-47-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3372-54-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/4260-55-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3372-58-0x0000000000400000-0x0000000000451000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 7 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	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpkc32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpkc32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpkc32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpkc32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
5180	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
5180	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
5180	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
5180	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
4260	wmpkc32.exe
4260	wmpkc32.exe
4260	wmpkc32.exe
4260	wmpkc32.exe
3372	wmpkc32.exe
3372	wmpkc32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3372	wmpkc32.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 5620 wrote to memory of 5180	5620	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	85
PID 5620 wrote to memory of 5180	5620	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	85
PID 5620 wrote to memory of 5180	5620	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	85
PID 5620 wrote to memory of 5180	5620	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	85
PID 5620 wrote to memory of 5180	5620	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	85
PID 5620 wrote to memory of 5180	5620	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	85
PID 5620 wrote to memory of 5180	5620	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	85
PID 5180 wrote to memory of 1700	5180	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	94
PID 5180 wrote to memory of 1700	5180	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	94
PID 5180 wrote to memory of 1700	5180	JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe	94
PID 1700 wrote to memory of 4260	1700	wmpkc32.exe	97
PID 1700 wrote to memory of 4260	1700	wmpkc32.exe	97
PID 1700 wrote to memory of 4260	1700	wmpkc32.exe	97
PID 1700 wrote to memory of 4260	1700	wmpkc32.exe	97
PID 1700 wrote to memory of 4260	1700	wmpkc32.exe	97
PID 1700 wrote to memory of 4260	1700	wmpkc32.exe	97
PID 1700 wrote to memory of 4260	1700	wmpkc32.exe	97
PID 1144 wrote to memory of 1744	1144	cmd.exe	100
PID 1144 wrote to memory of 1744	1144	cmd.exe	100
PID 1144 wrote to memory of 1744	1144	cmd.exe	100
PID 1744 wrote to memory of 3372	1744	wmpkc32.exe	101
PID 1744 wrote to memory of 3372	1744	wmpkc32.exe	101
PID 1744 wrote to memory of 3372	1744	wmpkc32.exe	101
PID 1744 wrote to memory of 3372	1744	wmpkc32.exe	101
PID 1744 wrote to memory of 3372	1744	wmpkc32.exe	101
PID 1744 wrote to memory of 3372	1744	wmpkc32.exe	101
PID 1744 wrote to memory of 3372	1744	wmpkc32.exe	101
PID 4260 wrote to memory of 3364	4260	wmpkc32.exe	56
PID 4260 wrote to memory of 3364	4260	wmpkc32.exe	56
PID 3372 wrote to memory of 2096	3372	wmpkc32.exe	102
PID 3372 wrote to memory of 2096	3372	wmpkc32.exe	102
PID 3372 wrote to memory of 2096	3372	wmpkc32.exe	102

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3364
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5620
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8aaf6135f756324620c10c7cff249462.exe"
    3⤵
    - Checks computer location settings
    - Maps connected drives based on registry
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:5180
  - - C:\Windows\SysWOW64\wmpkc32.exe
      "C:\Windows\SysWOW64\wmpkc32.exe" C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:1700
    - - C:\Windows\SysWOW64\wmpkc32.exe
        
        "C:\Windows\SysWOW64\wmpkc32.exe" C:\Users\Admin\AppData\Local\Temp\JAFFAC~1.EXE
        5⤵
        Modifies firewall policy service
        Deletes itself
        Executes dropped EXE
        Adds Run key to start application
        Maps connected drives based on registry
        Drops file in System32 directory
        System Location Discovery: System Language Discovery
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:4260
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\SysWOW64\wmpkc32.exe
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1144
- - C:\Windows\SysWOW64\wmpkc32.exe
    C:\Windows\SysWOW64\wmpkc32.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1744
  - - C:\Windows\SysWOW64\wmpkc32.exe
      C:\Windows\SysWOW64\wmpkc32.exe
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Maps connected drives based on registry
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:3372
    - - C:\Windows\SysWOW64\cmd.exe
        
        "C:\Windows\system32\cmd.exe" /c del C:\Windows\SysWOW64\wmpkc32.exe > nul
        5⤵
        System Location Discovery: System Language Discovery
        
        PID:2096

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\wmpkc32.exe

Filesize
132KB

MD5
8aaf6135f756324620c10c7cff249462

SHA1
57b2110f4e7b4809a23c68299bdd9ab72b315ff7

SHA256
82b10e0f46ca7b53146f8f05fec13fc149af4e766c854ca01990b55842424994

SHA512
513b6f98fb13691abc07dbbe308429cb848655fb93cdb0d536e80f4fa3c6ffe1c7871be0b048687c7f4a126be7ba6573ac688d03a0fcc29de8915b45a937269d

Download Submit
memory/3372-54-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3372-58-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4260-47-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/4260-55-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/5180-0-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/5180-2-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/5180-3-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/5180-4-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/5180-31-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/5180-41-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download