metasploit | 05f9502ece7f6c33dac6c13a39a7eb16fce2c05f0a63302df810feba495a38bd

General

Target

e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
Size

133KB
MD5

e70595d1e2d9a242b313c700b2279c41
SHA1

0caa6a68b2a70edf1b0116595284fa891b11aa4e
SHA256

05f9502ece7f6c33dac6c13a39a7eb16fce2c05f0a63302df810feba495a38bd
SHA512

0d150bffc685da2e4954f2b270d18803a8a6387c2501f3cde4c951945377f06fc81e6c52f1a50c5c2a7f55a7ae02ae20a83af4e31c445e5848456299af825abe
SSDEEP

3072:oHpOlnsIoD65dt5Ej3Yv9Z4I5/cBNdCLz2G:o/zUt63Yv92I5/cEiG

Score

10^/10

metasploit backdoor discovery evasion 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

Modifies firewall policy service 3 TTPs 8 IoCs

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\DomainProfile	wmpkh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpkh32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkh32.exe = "C:\\Windows\\SysWOW64\\wmpkh32.exe:*:Enabled:WinMedia Server"	wmpkh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpkh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpkh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpkh32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkh32.exe = "C:\\Windows\\SysWOW64\\wmpkh32.exe:*:Enabled:WinMedia Server"	wmpkh32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpkh32.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3316	wmpkh32.exe

Executes dropped EXE 2 IoCs

pid	Process
2772	wmpkh32.exe
3316	wmpkh32.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1892-0-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1892-2-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1892-3-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1892-4-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1892-31-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3316-44-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/1892-45-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3316-47-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3316-48-0x0000000000400000-0x0000000000451000-memory.dmp	upx

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 Server = "C:\\Windows\\SysWOW64\\wmpkh32.exe"	wmpkh32.exe

Maps connected drives based on registry 3 TTPs 4 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	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpkh32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpkh32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmpkh32.exe	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmpkh32.exe	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	wmpkh32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 184 set thread context of 1892	184	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	82
PID 2772 set thread context of 3316	2772	wmpkh32.exe	89

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 4 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	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpkh32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wmpkh32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1892	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
1892	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
1892	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
1892	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
3316	wmpkh32.exe
3316	wmpkh32.exe
3316	wmpkh32.exe
3316	wmpkh32.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 184 wrote to memory of 1892	184	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	82
PID 184 wrote to memory of 1892	184	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	82
PID 184 wrote to memory of 1892	184	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	82
PID 184 wrote to memory of 1892	184	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	82
PID 184 wrote to memory of 1892	184	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	82
PID 184 wrote to memory of 1892	184	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	82
PID 184 wrote to memory of 1892	184	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	82
PID 1892 wrote to memory of 2772	1892	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	88
PID 1892 wrote to memory of 2772	1892	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	88
PID 1892 wrote to memory of 2772	1892	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	88
PID 2772 wrote to memory of 3316	2772	wmpkh32.exe	89
PID 2772 wrote to memory of 3316	2772	wmpkh32.exe	89
PID 2772 wrote to memory of 3316	2772	wmpkh32.exe	89
PID 2772 wrote to memory of 3316	2772	wmpkh32.exe	89
PID 2772 wrote to memory of 3316	2772	wmpkh32.exe	89
PID 2772 wrote to memory of 3316	2772	wmpkh32.exe	89
PID 2772 wrote to memory of 3316	2772	wmpkh32.exe	89
PID 3316 wrote to memory of 3440	3316	wmpkh32.exe	56
PID 3316 wrote to memory of 3440	3316	wmpkh32.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3440
- C:\Users\Admin\AppData\Local\Temp\e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:184
- - C:\Users\Admin\AppData\Local\Temp\e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.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:1892
  - - C:\Windows\SysWOW64\wmpkh32.exe
      "C:\Windows\SysWOW64\wmpkh32.exe" C:\Users\Admin\AppData\Local\Temp\E70595~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2772
    - - C:\Windows\SysWOW64\wmpkh32.exe
        
        "C:\Windows\SysWOW64\wmpkh32.exe" C:\Users\Admin\AppData\Local\Temp\E70595~1.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:3316

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\wmpkh32.exe

Filesize
133KB

MD5
e70595d1e2d9a242b313c700b2279c41

SHA1
0caa6a68b2a70edf1b0116595284fa891b11aa4e

SHA256
05f9502ece7f6c33dac6c13a39a7eb16fce2c05f0a63302df810feba495a38bd

SHA512
0d150bffc685da2e4954f2b270d18803a8a6387c2501f3cde4c951945377f06fc81e6c52f1a50c5c2a7f55a7ae02ae20a83af4e31c445e5848456299af825abe

Download Submit
memory/1892-0-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1892-2-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1892-3-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1892-4-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1892-31-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1892-45-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3316-44-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3316-47-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3316-48-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads