metasploit | 6ff1652d7d7721ea1d44226510ded961285d8557df8d4f2cf5cb06c36969e628

General

Target

eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe
Size

276KB
MD5

eb79e1157f523008c8f90f1d50605347
SHA1

a84a19b4fe5f27ca97a2463c3aa0b92cf00adf8d
SHA256

6ff1652d7d7721ea1d44226510ded961285d8557df8d4f2cf5cb06c36969e628
SHA512

428f01942a13be2479c9b66c89d5013333f5baad3dc60822f029faffd394997abdf437e8bfae8c8e1de8c75aada8b05f74a99ee1a12c31ac58abd6631ce97ab8
SSDEEP

6144:0yO476+p6S5uK/mTSwN/GtjxSjLmlWA3VYdm0:0T4u+p64tmTvN/GtjKS3V0

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
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxcb86.exe = "C:\\Windows\\SysWOW64\\igfxcb86.exe:*:Enabled:Intel Display Daemon"	igfxcb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxcb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	igfxcb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	igfxcb86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxcb86.exe = "C:\\Windows\\SysWOW64\\igfxcb86.exe:*:Enabled:Intel Display Daemon"	igfxcb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	igfxcb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	igfxcb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	igfxcb86.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-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4344	igfxcb86.exe

Executes dropped EXE 2 IoCs

pid	Process
4076	igfxcb86.exe
4344	igfxcb86.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2772-1-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2772-5-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2772-7-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2772-6-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2772-40-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral2/memory/2772-43-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/4344-48-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/4344-49-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/4344-50-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/4344-51-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/4344-52-0x0000000000400000-0x000000000044B000-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 Display Daemon = "C:\\Windows\\SysWOW64\\igfxcb86.exe"	igfxcb86.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	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxcb86.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	igfxcb86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\igfxcb86.exe	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	igfxcb86.exe
File opened for modification	C:\Windows\SysWOW64\	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\igfxcb86.exe	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1700 set thread context of 2772	1700	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe	82
PID 4076 set thread context of 4344	4076	igfxcb86.exe	91

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	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	igfxcb86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	igfxcb86.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2772	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe
2772	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe
2772	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe
2772	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe
4344	igfxcb86.exe
4344	igfxcb86.exe
4344	igfxcb86.exe
4344	igfxcb86.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1700	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe
4076	igfxcb86.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 2772	1700	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe	82
PID 1700 wrote to memory of 2772	1700	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe	82
PID 1700 wrote to memory of 2772	1700	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe	82
PID 1700 wrote to memory of 2772	1700	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe	82
PID 1700 wrote to memory of 2772	1700	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe	82
PID 1700 wrote to memory of 2772	1700	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe	82
PID 1700 wrote to memory of 2772	1700	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe	82
PID 2772 wrote to memory of 4076	2772	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe	90
PID 2772 wrote to memory of 4076	2772	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe	90
PID 2772 wrote to memory of 4076	2772	eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe	90
PID 4076 wrote to memory of 4344	4076	igfxcb86.exe	91
PID 4076 wrote to memory of 4344	4076	igfxcb86.exe	91
PID 4076 wrote to memory of 4344	4076	igfxcb86.exe	91
PID 4076 wrote to memory of 4344	4076	igfxcb86.exe	91
PID 4076 wrote to memory of 4344	4076	igfxcb86.exe	91
PID 4076 wrote to memory of 4344	4076	igfxcb86.exe	91
PID 4076 wrote to memory of 4344	4076	igfxcb86.exe	91
PID 4344 wrote to memory of 3536	4344	igfxcb86.exe	56
PID 4344 wrote to memory of 3536	4344	igfxcb86.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3536
- C:\Users\Admin\AppData\Local\Temp\eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:1700
- - C:\Users\Admin\AppData\Local\Temp\eb79e1157f523008c8f90f1d50605347_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\eb79e1157f523008c8f90f1d50605347_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:2772
  - - C:\Windows\SysWOW64\igfxcb86.exe
      "C:\Windows\SysWOW64\igfxcb86.exe" C:\Users\Admin\AppData\Local\Temp\EB79E1~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:4076
    - - C:\Windows\SysWOW64\igfxcb86.exe
        
        "C:\Windows\SysWOW64\igfxcb86.exe" C:\Users\Admin\AppData\Local\Temp\EB79E1~1.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:4344

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\igfxcb86.exe

Filesize
276KB

MD5
eb79e1157f523008c8f90f1d50605347

SHA1
a84a19b4fe5f27ca97a2463c3aa0b92cf00adf8d

SHA256
6ff1652d7d7721ea1d44226510ded961285d8557df8d4f2cf5cb06c36969e628

SHA512
428f01942a13be2479c9b66c89d5013333f5baad3dc60822f029faffd394997abdf437e8bfae8c8e1de8c75aada8b05f74a99ee1a12c31ac58abd6631ce97ab8

Download Submit
memory/1700-0-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1700-4-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2772-40-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2772-5-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2772-7-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2772-6-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2772-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2772-2-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2772-43-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4076-47-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/4344-48-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4344-49-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4344-50-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4344-51-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4344-52-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads