metasploit | 80e0bcab1019f4f7f155297fd9dc7b064bb113135303a97a2833e2439117d8d9

General

Target

45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe
Size

180KB
MD5

45d914aa33dab28da680b540fe6881b9
SHA1

ffebf349459c66e756b434003d2b156041d321b5
SHA256

80e0bcab1019f4f7f155297fd9dc7b064bb113135303a97a2833e2439117d8d9
SHA512

dcc66ebf801b428aa6a7ee51934c815a580090597852c88ba99e66b797f87c225d55d5d0c9091c89dee06d39a009f8719f9a8931cb4c1094ff4597c3fb01bdba
SSDEEP

3072:ib1J/ykAEd6Ja3l7lP1lnKlNgOCV1cmbNeUNKV56lwzhbmmsv2eCjvPyAu:k1hDATJel7lPKi/cmZLduhbE4Nu

Score

10^/10

metasploit backdoor 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
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkl32.exe = "C:\\Windows\\SysWOW64\\wmpkl32.exe:*:Enabled:WinMedia Services"	wmpkl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpkl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmpkl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmpkl32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkl32.exe = "C:\\Windows\\SysWOW64\\wmpkl32.exe:*:Enabled:WinMedia Services"	wmpkl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpkl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmpkl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmpkl32.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-1-5-21-2636447293-1148739154-93880854-1000\Control Panel\International\Geo\Nation	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3000	wmpkl32.exe

Executes dropped EXE 2 IoCs

pid	Process
228	wmpkl32.exe
3000	wmpkl32.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3744-0-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3744-2-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3744-3-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3744-4-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3744-40-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3000-46-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3000-45-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3000-48-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/3000-49-0x0000000000400000-0x0000000000451000-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 Services = "C:\\Windows\\SysWOW64\\wmpkl32.exe"	wmpkl32.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 value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpkl32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmpkl32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\wmpkl32.exe	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\wmpkl32.exe	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	wmpkl32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4884 set thread context of 3744	4884	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe	86
PID 228 set thread context of 3000	228	wmpkl32.exe	88

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3744	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe
3744	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe
3744	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe
3744	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe
3000	wmpkl32.exe
3000	wmpkl32.exe
3000	wmpkl32.exe
3000	wmpkl32.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 4884 wrote to memory of 3744	4884	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe	86
PID 4884 wrote to memory of 3744	4884	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe	86
PID 4884 wrote to memory of 3744	4884	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe	86
PID 4884 wrote to memory of 3744	4884	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe	86
PID 4884 wrote to memory of 3744	4884	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe	86
PID 4884 wrote to memory of 3744	4884	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe	86
PID 4884 wrote to memory of 3744	4884	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe	86
PID 3744 wrote to memory of 228	3744	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe	87
PID 3744 wrote to memory of 228	3744	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe	87
PID 3744 wrote to memory of 228	3744	45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe	87
PID 228 wrote to memory of 3000	228	wmpkl32.exe	88
PID 228 wrote to memory of 3000	228	wmpkl32.exe	88
PID 228 wrote to memory of 3000	228	wmpkl32.exe	88
PID 228 wrote to memory of 3000	228	wmpkl32.exe	88
PID 228 wrote to memory of 3000	228	wmpkl32.exe	88
PID 228 wrote to memory of 3000	228	wmpkl32.exe	88
PID 228 wrote to memory of 3000	228	wmpkl32.exe	88
PID 3000 wrote to memory of 3452	3000	wmpkl32.exe	55
PID 3000 wrote to memory of 3452	3000	wmpkl32.exe	55

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3452
- C:\Users\Admin\AppData\Local\Temp\45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4884
- - C:\Users\Admin\AppData\Local\Temp\45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\45d914aa33dab28da680b540fe6881b9_JaffaCakes118.exe"
    3⤵
    - Checks computer location settings
    - Maps connected drives based on registry
    - Drops file in System32 directory
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3744
  - - C:\Windows\SysWOW64\wmpkl32.exe
      "C:\Windows\SysWOW64\wmpkl32.exe" C:\Users\Admin\AppData\Local\Temp\45D914~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:228
    - - C:\Windows\SysWOW64\wmpkl32.exe
        
        "C:\Windows\SysWOW64\wmpkl32.exe" C:\Users\Admin\AppData\Local\Temp\45D914~1.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
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of WriteProcessMemory
        
        PID:3000

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\wmpkl32.exe

Filesize
180KB

MD5
45d914aa33dab28da680b540fe6881b9

SHA1
ffebf349459c66e756b434003d2b156041d321b5

SHA256
80e0bcab1019f4f7f155297fd9dc7b064bb113135303a97a2833e2439117d8d9

SHA512
dcc66ebf801b428aa6a7ee51934c815a580090597852c88ba99e66b797f87c225d55d5d0c9091c89dee06d39a009f8719f9a8931cb4c1094ff4597c3fb01bdba

Download Submit
memory/3000-46-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3000-45-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3000-48-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3000-49-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3744-0-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3744-2-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3744-3-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3744-4-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/3744-40-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads