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 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
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
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

Deletes itself 1 IoCs

pid	Process
2068	wmpkh32.exe

Executes dropped EXE 2 IoCs

pid	Process
2884	wmpkh32.exe
2068	wmpkh32.exe

Loads dropped DLL 3 IoCs

pid	Process
1312	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
1312	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
2884	wmpkh32.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1312-6-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1312-10-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1312-9-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1312-8-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1312-4-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1312-2-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1312-11-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1312-12-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2068-33-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1312-32-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1312-39-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2068-40-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2068-44-0x0000000000400000-0x0000000000451000-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 1328 set thread context of 1312	1328	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	30
PID 2884 set thread context of 2068	2884	wmpkh32.exe	32

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1312	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
1312	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
2068	wmpkh32.exe
2068	wmpkh32.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1328 wrote to memory of 1312	1328	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	30
PID 1328 wrote to memory of 1312	1328	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	30
PID 1328 wrote to memory of 1312	1328	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	30
PID 1328 wrote to memory of 1312	1328	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	30
PID 1328 wrote to memory of 1312	1328	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	30
PID 1328 wrote to memory of 1312	1328	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	30
PID 1328 wrote to memory of 1312	1328	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	30
PID 1312 wrote to memory of 2884	1312	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	31
PID 1312 wrote to memory of 2884	1312	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	31
PID 1312 wrote to memory of 2884	1312	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	31
PID 1312 wrote to memory of 2884	1312	e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe	31
PID 2884 wrote to memory of 2068	2884	wmpkh32.exe	32
PID 2884 wrote to memory of 2068	2884	wmpkh32.exe	32
PID 2884 wrote to memory of 2068	2884	wmpkh32.exe	32
PID 2884 wrote to memory of 2068	2884	wmpkh32.exe	32
PID 2884 wrote to memory of 2068	2884	wmpkh32.exe	32
PID 2884 wrote to memory of 2068	2884	wmpkh32.exe	32
PID 2884 wrote to memory of 2068	2884	wmpkh32.exe	32
PID 2068 wrote to memory of 1188	2068	wmpkh32.exe	21
PID 2068 wrote to memory of 1188	2068	wmpkh32.exe	21

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1188
- 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:1328
- - C:\Users\Admin\AppData\Local\Temp\e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e70595d1e2d9a242b313c700b2279c41_JaffaCakes118.exe"
    3⤵
    - Loads dropped DLL
    - 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:1312
  - - C:\Windows\SysWOW64\wmpkh32.exe
      "C:\Windows\SysWOW64\wmpkh32.exe" C:\Users\Admin\AppData\Local\Temp\E70595~1.EXE
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2884
    - - 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:2068

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

2

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

\Windows\SysWOW64\wmpkh32.exe

Filesize
133KB

MD5
e70595d1e2d9a242b313c700b2279c41

SHA1
0caa6a68b2a70edf1b0116595284fa891b11aa4e

SHA256
05f9502ece7f6c33dac6c13a39a7eb16fce2c05f0a63302df810feba495a38bd

SHA512
0d150bffc685da2e4954f2b270d18803a8a6387c2501f3cde4c951945377f06fc81e6c52f1a50c5c2a7f55a7ae02ae20a83af4e31c445e5848456299af825abe

Download Submit
memory/1188-41-0x00000000024E0000-0x00000000024FE000-memory.dmp

Filesize
120KB

Download
memory/1188-43-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/1312-12-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1312-10-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1312-4-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1312-2-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1312-11-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1312-0-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1312-9-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1312-8-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1312-32-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1312-39-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1312-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2068-33-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2068-40-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2068-44-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads