metasploit | 33dceac539b2a81f97477eb7f2c140adcabaae7a8a920f10db3593fca147dd54

General

Target

346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe
Size

140KB
MD5

346904d8e0bb829b043f2a83977700d1
SHA1

274f6a0f70e06b818047ed1f74d2f96c53c5afef
SHA256

33dceac539b2a81f97477eb7f2c140adcabaae7a8a920f10db3593fca147dd54
SHA512

ad7c3015bd37ccd31016b97f3c9a3a37afffdc7ddb0fa1ce813b5a2e36c5eed93bd265b16568eb08ad0c7371d120b38d128e3254f945b5987707d3d152a0fac5
SSDEEP

3072:Eb6598JqTHvNcAvuSD97v1bXwJ8m34xWL5pG4BYf:qo7NJz91MJ8BxOpJBYf

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\igfxvm32.exe = "C:\\Windows\\SysWOW64\\igfxvm32.exe:*:Enabled:Intel Virtual Machine"	igfxvm32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxvm32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	igfxvm32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	igfxvm32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxvm32.exe = "C:\\Windows\\SysWOW64\\igfxvm32.exe:*:Enabled:Intel Virtual Machine"	igfxvm32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	igfxvm32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	igfxvm32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	igfxvm32.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-1-5-21-3419463127-3903270268-2580331543-1000\Control Panel\International\Geo\Nation	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3156	igfxvm32.exe

Executes dropped EXE 2 IoCs

pid	Process
2796	igfxvm32.exe
3156	igfxvm32.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1820-1-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1820-5-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1820-3-0x0000000000400000-0x0000000000438000-memory.dmp	upx
behavioral2/memory/1820-7-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1820-6-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1820-38-0x0000000000400000-0x0000000000438000-memory.dmp	upx
behavioral2/memory/3156-49-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1820-50-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3156-52-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/3156-53-0x0000000000400000-0x000000000044C000-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 Virtual Machine = "C:\\Windows\\SysWOW64\\igfxvm32.exe"	igfxvm32.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	igfxvm32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxvm32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\igfxvm32.exe	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\igfxvm32.exe	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\	igfxvm32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2964 set thread context of 1820	2964	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe	83
PID 2796 set thread context of 3156	2796	igfxvm32.exe	87

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\	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1820	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe
1820	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe
1820	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe
1820	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe
3156	igfxvm32.exe
3156	igfxvm32.exe
3156	igfxvm32.exe
3156	igfxvm32.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
2964	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2964 wrote to memory of 1820	2964	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe	83
PID 2964 wrote to memory of 1820	2964	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe	83
PID 2964 wrote to memory of 1820	2964	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe	83
PID 2964 wrote to memory of 1820	2964	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe	83
PID 2964 wrote to memory of 1820	2964	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe	83
PID 2964 wrote to memory of 1820	2964	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe	83
PID 2964 wrote to memory of 1820	2964	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe	83
PID 1820 wrote to memory of 2796	1820	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe	86
PID 1820 wrote to memory of 2796	1820	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe	86
PID 1820 wrote to memory of 2796	1820	346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe	86
PID 2796 wrote to memory of 3156	2796	igfxvm32.exe	87
PID 2796 wrote to memory of 3156	2796	igfxvm32.exe	87
PID 2796 wrote to memory of 3156	2796	igfxvm32.exe	87
PID 2796 wrote to memory of 3156	2796	igfxvm32.exe	87
PID 2796 wrote to memory of 3156	2796	igfxvm32.exe	87
PID 2796 wrote to memory of 3156	2796	igfxvm32.exe	87
PID 2796 wrote to memory of 3156	2796	igfxvm32.exe	87
PID 3156 wrote to memory of 3408	3156	igfxvm32.exe	56
PID 3156 wrote to memory of 3408	3156	igfxvm32.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3408
- C:\Users\Admin\AppData\Local\Temp\346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:2964
- - C:\Users\Admin\AppData\Local\Temp\346904d8e0bb829b043f2a83977700d1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\346904d8e0bb829b043f2a83977700d1_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:1820
  - - C:\Windows\SysWOW64\igfxvm32.exe
      "C:\Windows\SysWOW64\igfxvm32.exe" C:\Users\Admin\AppData\Local\Temp\346904~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:2796
    - - C:\Windows\SysWOW64\igfxvm32.exe
        
        "C:\Windows\SysWOW64\igfxvm32.exe" C:\Users\Admin\AppData\Local\Temp\346904~1.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:3156

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\igfxvm32.exe

Filesize
140KB

MD5
346904d8e0bb829b043f2a83977700d1

SHA1
274f6a0f70e06b818047ed1f74d2f96c53c5afef

SHA256
33dceac539b2a81f97477eb7f2c140adcabaae7a8a920f10db3593fca147dd54

SHA512
ad7c3015bd37ccd31016b97f3c9a3a37afffdc7ddb0fa1ce813b5a2e36c5eed93bd265b16568eb08ad0c7371d120b38d128e3254f945b5987707d3d152a0fac5

Download Submit
memory/1820-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1820-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1820-5-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1820-3-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1820-7-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1820-50-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1820-1-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2796-42-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2796-46-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2964-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2964-0-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3156-49-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3156-52-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/3156-53-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads