metasploit | 4a64560a729bcf9bf115449533d1f4b316a4f11bc398c45043c7bf91d7833e42

General

Target

e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe
Size

166KB
MD5

e789546a9101fc93ff458fa70fa6b8cd
SHA1

313e4522372ed861ed3f29205d87cb3d786b099e
SHA256

4a64560a729bcf9bf115449533d1f4b316a4f11bc398c45043c7bf91d7833e42
SHA512

ea9cb9e513edf25dc0db61cadcae6ab8b27165d9bafda2d598ff15927856fca8be8318198dd5a374c4111f346638a396bab150432779cbd17bc9b02e9bf9af10
SSDEEP

3072:EG5bIr0kj9Uj25CDsewtDtgbs4TQNryGhr1NveBKWOAsu:95KjVemP/N2Gh7WBqfu

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\AuthorizedApplications	igfxpf86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxpf86.exe = "C:\\Windows\\SysWOW64\\igfxpf86.exe:*:Enabled:Intel Packet Monitor"	igfxpf86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	igfxpf86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	igfxpf86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	igfxpf86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxpf86.exe = "C:\\Windows\\SysWOW64\\igfxpf86.exe:*:Enabled:Intel Packet Monitor"	igfxpf86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxpf86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	igfxpf86.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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
1916	igfxpf86.exe

Executes dropped EXE 2 IoCs

pid	Process
4696	igfxpf86.exe
1916	igfxpf86.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3336-0-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/3336-2-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/3336-3-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/3336-4-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/3336-43-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/1916-44-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/3336-45-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/3336-46-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/1916-47-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/1916-48-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/1916-49-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/1916-50-0x0000000000400000-0x000000000044B000-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\Intel Packet Monitor = "C:\\Windows\\SysWOW64\\igfxpf86.exe"	igfxpf86.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	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxpf86.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	igfxpf86.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\igfxpf86.exe	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\igfxpf86.exe	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	igfxpf86.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 436 set thread context of 3336	436	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe	82
PID 4696 set thread context of 1916	4696	igfxpf86.exe	86

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	igfxpf86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	igfxpf86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3336	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe
3336	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe
3336	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe
3336	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe
1916	igfxpf86.exe
1916	igfxpf86.exe
1916	igfxpf86.exe
1916	igfxpf86.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
436	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 436 wrote to memory of 3336	436	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe	82
PID 436 wrote to memory of 3336	436	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe	82
PID 436 wrote to memory of 3336	436	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe	82
PID 436 wrote to memory of 3336	436	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe	82
PID 436 wrote to memory of 3336	436	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe	82
PID 436 wrote to memory of 3336	436	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe	82
PID 436 wrote to memory of 3336	436	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe	82
PID 3336 wrote to memory of 4696	3336	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe	85
PID 3336 wrote to memory of 4696	3336	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe	85
PID 3336 wrote to memory of 4696	3336	e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe	85
PID 4696 wrote to memory of 1916	4696	igfxpf86.exe	86
PID 4696 wrote to memory of 1916	4696	igfxpf86.exe	86
PID 4696 wrote to memory of 1916	4696	igfxpf86.exe	86
PID 4696 wrote to memory of 1916	4696	igfxpf86.exe	86
PID 4696 wrote to memory of 1916	4696	igfxpf86.exe	86
PID 4696 wrote to memory of 1916	4696	igfxpf86.exe	86
PID 4696 wrote to memory of 1916	4696	igfxpf86.exe	86
PID 1916 wrote to memory of 3548	1916	igfxpf86.exe	56
PID 1916 wrote to memory of 3548	1916	igfxpf86.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3548
- C:\Users\Admin\AppData\Local\Temp\e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:436
- - C:\Users\Admin\AppData\Local\Temp\e789546a9101fc93ff458fa70fa6b8cd_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e789546a9101fc93ff458fa70fa6b8cd_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:3336
  - - C:\Windows\SysWOW64\igfxpf86.exe
      "C:\Windows\SysWOW64\igfxpf86.exe" C:\Users\Admin\AppData\Local\Temp\E78954~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:4696
    - - C:\Windows\SysWOW64\igfxpf86.exe
        
        "C:\Windows\SysWOW64\igfxpf86.exe" C:\Users\Admin\AppData\Local\Temp\E78954~1.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:1916

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\igfxpf86.exe

Filesize
166KB

MD5
e789546a9101fc93ff458fa70fa6b8cd

SHA1
313e4522372ed861ed3f29205d87cb3d786b099e

SHA256
4a64560a729bcf9bf115449533d1f4b316a4f11bc398c45043c7bf91d7833e42

SHA512
ea9cb9e513edf25dc0db61cadcae6ab8b27165d9bafda2d598ff15927856fca8be8318198dd5a374c4111f346638a396bab150432779cbd17bc9b02e9bf9af10

Download Submit
memory/1916-47-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1916-44-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1916-48-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1916-49-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1916-50-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3336-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3336-4-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3336-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3336-43-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3336-45-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3336-46-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3336-0-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads