metasploit | 90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377

General

Target

90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
Size

140KB
MD5

ecf1dccb831f5d9f64e12e69cb04be74
SHA1

c448fe8792bb8b3155f0f4fc360d3053155a64c5
SHA256

90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377
SHA512

d81cb71368738815dba2a8a14e1ce36a9f4251e97cbc177ea8ece1629fc44efe17a20e2f6c18b570f1638821a39a6ea5ee95a54f633701345fe585770d340770
SSDEEP

3072:Cp651xEpsy1ai+6oTHzoMYypJTy4RhgVbYLr8imVO:lEb19/oTHzoMYynTy4C4hm8

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
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
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

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe

Deletes itself 1 IoCs

pid	Process
4408	igfxvm32.exe

Executes dropped EXE 2 IoCs

pid	Process
2680	igfxvm32.exe
4408	igfxvm32.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 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 opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxvm32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	igfxvm32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
File opened for modification	C:\Windows\SysWOW64\igfxvm32.exe	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
File created	C:\Windows\SysWOW64\igfxvm32.exe	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
File opened for modification	C:\Windows\SysWOW64\	igfxvm32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3464 set thread context of 1532	3464	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	83
PID 2680 set thread context of 4408	2680	igfxvm32.exe	86

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1532-0-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1532-2-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1532-3-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1532-4-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1532-41-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/4408-44-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1532-45-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1532-46-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral2/memory/4408-47-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/4408-48-0x0000000000400000-0x000000000044C000-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	igfxvm32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	igfxvm32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1532	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
1532	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
1532	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
1532	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
4408	igfxvm32.exe
4408	igfxvm32.exe
4408	igfxvm32.exe
4408	igfxvm32.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3464	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3464 wrote to memory of 1532	3464	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	83
PID 3464 wrote to memory of 1532	3464	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	83
PID 3464 wrote to memory of 1532	3464	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	83
PID 3464 wrote to memory of 1532	3464	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	83
PID 3464 wrote to memory of 1532	3464	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	83
PID 3464 wrote to memory of 1532	3464	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	83
PID 3464 wrote to memory of 1532	3464	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	83
PID 1532 wrote to memory of 2680	1532	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	85
PID 1532 wrote to memory of 2680	1532	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	85
PID 1532 wrote to memory of 2680	1532	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	85
PID 2680 wrote to memory of 4408	2680	igfxvm32.exe	86
PID 2680 wrote to memory of 4408	2680	igfxvm32.exe	86
PID 2680 wrote to memory of 4408	2680	igfxvm32.exe	86
PID 2680 wrote to memory of 4408	2680	igfxvm32.exe	86
PID 2680 wrote to memory of 4408	2680	igfxvm32.exe	86
PID 2680 wrote to memory of 4408	2680	igfxvm32.exe	86
PID 2680 wrote to memory of 4408	2680	igfxvm32.exe	86
PID 4408 wrote to memory of 3504	4408	igfxvm32.exe	56
PID 4408 wrote to memory of 3504	4408	igfxvm32.exe	56

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3504
- C:\Users\Admin\AppData\Local\Temp\90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
  "C:\Users\Admin\AppData\Local\Temp\90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:3464
- - C:\Users\Admin\AppData\Local\Temp\90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
    "C:\Users\Admin\AppData\Local\Temp\90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.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:1532
  - - C:\Windows\SysWOW64\igfxvm32.exe
      "C:\Windows\SysWOW64\igfxvm32.exe" C:\Users\Admin\AppData\Local\Temp\90598B~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2680
    - - C:\Windows\SysWOW64\igfxvm32.exe
        
        "C:\Windows\SysWOW64\igfxvm32.exe" C:\Users\Admin\AppData\Local\Temp\90598B~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:4408

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\igfxvm32.exe

Filesize
140KB

MD5
ecf1dccb831f5d9f64e12e69cb04be74

SHA1
c448fe8792bb8b3155f0f4fc360d3053155a64c5

SHA256
90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377

SHA512
d81cb71368738815dba2a8a14e1ce36a9f4251e97cbc177ea8ece1629fc44efe17a20e2f6c18b570f1638821a39a6ea5ee95a54f633701345fe585770d340770

Download Submit
memory/1532-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1532-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1532-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1532-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1532-41-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1532-45-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1532-46-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/4408-44-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4408-47-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4408-48-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads