metasploit | f140f371d170381886a1870bfa000ea336ea270ca3c9de09886127cecd2f0705

General

Target

e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe
Size

146KB
MD5

e351522713d034a97167b1da22a75fa1
SHA1

8d44f2f36d6c11a71cb1a58db3b5297e2dbbf78e
SHA256

f140f371d170381886a1870bfa000ea336ea270ca3c9de09886127cecd2f0705
SHA512

1e0cef960b024263b71168b2f3d356821e39869853fb93c6e75ef9191135957dff8e8e0c0a862520791f35d56444d42b33b1d8619a5504685dfc35cfa104799b
SSDEEP

3072:Rlk6bOFssBemmmEZ0VjLgWY00V/47bDW6PPT1/jvWMNrU5:zk9cmmmCmYj4S6xjuSrU5

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
Metasploit family
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\StandardProfile	igfxbk86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	igfxbk86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxbk86.exe = "C:\\Windows\\SysWOW64\\igfxbk86.exe:*:Enabled:Intel Backup Service"	igfxbk86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxbk86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	igfxbk86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	igfxbk86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxbk86.exe = "C:\\Windows\\SysWOW64\\igfxbk86.exe:*:Enabled:Intel Backup Service"	igfxbk86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	igfxbk86.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3896	igfxbk86.exe

Executes dropped EXE 2 IoCs

pid	Process
548	igfxbk86.exe
3896	igfxbk86.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\Intel Backup Service = "C:\\Windows\\SysWOW64\\igfxbk86.exe"	igfxbk86.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	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxbk86.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	igfxbk86.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\igfxbk86.exe	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	igfxbk86.exe
File opened for modification	C:\Windows\SysWOW64\	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\igfxbk86.exe	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1616 set thread context of 2028	1616	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe	83
PID 548 set thread context of 3896	548	igfxbk86.exe	91

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2028-0-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2028-2-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2028-3-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2028-4-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3896-43-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2028-42-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2028-45-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2028-46-0x0000000000400000-0x0000000000429000-memory.dmp	upx
behavioral2/memory/3896-47-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3896-48-0x0000000000400000-0x000000000044C000-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 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	igfxbk86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	igfxbk86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2028	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe
2028	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe
2028	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe
2028	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe
3896	igfxbk86.exe
3896	igfxbk86.exe
3896	igfxbk86.exe
3896	igfxbk86.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1616	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 2028	1616	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe	83
PID 1616 wrote to memory of 2028	1616	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe	83
PID 1616 wrote to memory of 2028	1616	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe	83
PID 1616 wrote to memory of 2028	1616	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe	83
PID 1616 wrote to memory of 2028	1616	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe	83
PID 1616 wrote to memory of 2028	1616	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe	83
PID 1616 wrote to memory of 2028	1616	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe	83
PID 2028 wrote to memory of 548	2028	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe	90
PID 2028 wrote to memory of 548	2028	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe	90
PID 2028 wrote to memory of 548	2028	e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe	90
PID 548 wrote to memory of 3896	548	igfxbk86.exe	91
PID 548 wrote to memory of 3896	548	igfxbk86.exe	91
PID 548 wrote to memory of 3896	548	igfxbk86.exe	91
PID 548 wrote to memory of 3896	548	igfxbk86.exe	91
PID 548 wrote to memory of 3896	548	igfxbk86.exe	91
PID 548 wrote to memory of 3896	548	igfxbk86.exe	91
PID 548 wrote to memory of 3896	548	igfxbk86.exe	91
PID 3896 wrote to memory of 3432	3896	igfxbk86.exe	56
PID 3896 wrote to memory of 3432	3896	igfxbk86.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3432
- C:\Users\Admin\AppData\Local\Temp\e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:1616
- - C:\Users\Admin\AppData\Local\Temp\e351522713d034a97167b1da22a75fa1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\e351522713d034a97167b1da22a75fa1_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:2028
  - - C:\Windows\SysWOW64\igfxbk86.exe
      "C:\Windows\SysWOW64\igfxbk86.exe" C:\Users\Admin\AppData\Local\Temp\E35152~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:548
    - - C:\Windows\SysWOW64\igfxbk86.exe
        
        "C:\Windows\SysWOW64\igfxbk86.exe" C:\Users\Admin\AppData\Local\Temp\E35152~1.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:3896

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\igfxbk86.exe

Filesize
146KB

MD5
e351522713d034a97167b1da22a75fa1

SHA1
8d44f2f36d6c11a71cb1a58db3b5297e2dbbf78e

SHA256
f140f371d170381886a1870bfa000ea336ea270ca3c9de09886127cecd2f0705

SHA512
1e0cef960b024263b71168b2f3d356821e39869853fb93c6e75ef9191135957dff8e8e0c0a862520791f35d56444d42b33b1d8619a5504685dfc35cfa104799b

Download Submit
memory/2028-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2028-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2028-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2028-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2028-42-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2028-45-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2028-46-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3896-43-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3896-47-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3896-48-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads