metasploit | 3094dca10fa0eea46d0ce82555d6a6e6790716da086190f138e9fb8ae98037fd

General

Target

951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe
Size

109KB
MD5

951392f030fd30c04cfa66288eedf594
SHA1

37f99483bc893615948731653f725eeb6f702c16
SHA256

3094dca10fa0eea46d0ce82555d6a6e6790716da086190f138e9fb8ae98037fd
SHA512

9e33dad030f8c204304674eb6d28f9f41425adae2f12c0136b4097dd3ad5580ea3c163a5707f5ef0de3b6e946085a2156d0ac22bec3ee34376f0bde7876811f1
SSDEEP

1536:kCbKkK5KSe0L+jHes8GFN9dD6uEe4UuRbfBfp6NW9wbOjHz6iUH7IkAd6mWBnout:kCe5odfIuEXUuZD6DG6iUH7TAozout

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 4 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\AuthorizedApplications\List	igfxkb86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxkb86.exe = "C:\\Windows\\SysWOW64\\igfxkb86.exe:*:Enabled:Intel Backup Monitor"	igfxkb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxkb86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxkb86.exe = "C:\\Windows\\SysWOW64\\igfxkb86.exe:*:Enabled:Intel Backup Monitor"	igfxkb86.exe

Deletes itself 1 IoCs

pid	Process
2976	igfxkb86.exe

Executes dropped EXE 1 IoCs

pid	Process
2976	igfxkb86.exe

Loads dropped DLL 2 IoCs

pid	Process
2248	951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe
2248	951392f030fd30c04cfa66288eedf594_JaffaCakes118.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 Monitor = "C:\\Windows\\SysWOW64\\igfxkb86.exe"	igfxkb86.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	951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxkb86.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	igfxkb86.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\igfxkb86.exe	951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	igfxkb86.exe
File opened for modification	C:\Windows\SysWOW64\	951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\igfxkb86.exe	951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2248-0-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/files/0x00070000000120fc-4.dat	upx
behavioral1/memory/2248-12-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/2248-14-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/2976-17-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/2976-18-0x0000000000400000-0x000000000044F000-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 2 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	951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	igfxkb86.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2248	951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe
2248	951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe
2976	igfxkb86.exe
2976	igfxkb86.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2976	2248	951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe	30
PID 2248 wrote to memory of 2976	2248	951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe	30
PID 2248 wrote to memory of 2976	2248	951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe	30
PID 2248 wrote to memory of 2976	2248	951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe	30
PID 2976 wrote to memory of 1412	2976	igfxkb86.exe	21
PID 2976 wrote to memory of 1412	2976	igfxkb86.exe	21

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1412
- C:\Users\Admin\AppData\Local\Temp\951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\951392f030fd30c04cfa66288eedf594_JaffaCakes118.exe"
  2⤵
  - 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:2248
- - C:\Windows\SysWOW64\igfxkb86.exe
    "C:\Windows\SysWOW64\igfxkb86.exe" C:\Users\Admin\AppData\Local\Temp\951392~1.EXE
    3⤵
    - 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:2976

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\igfxkb86.exe

Filesize
109KB

MD5
951392f030fd30c04cfa66288eedf594

SHA1
37f99483bc893615948731653f725eeb6f702c16

SHA256
3094dca10fa0eea46d0ce82555d6a6e6790716da086190f138e9fb8ae98037fd

SHA512
9e33dad030f8c204304674eb6d28f9f41425adae2f12c0136b4097dd3ad5580ea3c163a5707f5ef0de3b6e946085a2156d0ac22bec3ee34376f0bde7876811f1

Download Submit
memory/1412-16-0x0000000002230000-0x0000000002231000-memory.dmp

Filesize
4KB

Download
memory/1412-15-0x00000000029D0000-0x00000000029EE000-memory.dmp

Filesize
120KB

Download
memory/2248-0-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2248-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2248-11-0x0000000002F20000-0x0000000002F6F000-memory.dmp

Filesize
316KB

Download
memory/2248-14-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2976-17-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2976-18-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads