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 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	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
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

Deletes itself 1 IoCs

pid	Process
2716	igfxvm32.exe

Executes dropped EXE 2 IoCs

pid	Process
2444	igfxvm32.exe
2716	igfxvm32.exe

Loads dropped DLL 3 IoCs

pid	Process
2412	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
2412	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
2444	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 2380 set thread context of 2412	2380	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	30
PID 2444 set thread context of 2716	2444	igfxvm32.exe	32

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2412-4-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2412-9-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2412-10-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2412-8-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2412-2-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2412-7-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2412-5-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2412-35-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2412-39-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral1/memory/2716-36-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/2716-40-0x0000000000400000-0x000000000044C000-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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2412	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
2412	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
2716	igfxvm32.exe
2716	igfxvm32.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2412	2380	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	30
PID 2380 wrote to memory of 2412	2380	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	30
PID 2380 wrote to memory of 2412	2380	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	30
PID 2380 wrote to memory of 2412	2380	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	30
PID 2380 wrote to memory of 2412	2380	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	30
PID 2380 wrote to memory of 2412	2380	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	30
PID 2380 wrote to memory of 2412	2380	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	30
PID 2412 wrote to memory of 2444	2412	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	31
PID 2412 wrote to memory of 2444	2412	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	31
PID 2412 wrote to memory of 2444	2412	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	31
PID 2412 wrote to memory of 2444	2412	90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe	31
PID 2444 wrote to memory of 2716	2444	igfxvm32.exe	32
PID 2444 wrote to memory of 2716	2444	igfxvm32.exe	32
PID 2444 wrote to memory of 2716	2444	igfxvm32.exe	32
PID 2444 wrote to memory of 2716	2444	igfxvm32.exe	32
PID 2444 wrote to memory of 2716	2444	igfxvm32.exe	32
PID 2444 wrote to memory of 2716	2444	igfxvm32.exe	32
PID 2444 wrote to memory of 2716	2444	igfxvm32.exe	32
PID 2716 wrote to memory of 1200	2716	igfxvm32.exe	21
PID 2716 wrote to memory of 1200	2716	igfxvm32.exe	21

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200
- 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 WriteProcessMemory
  PID:2380
- - C:\Users\Admin\AppData\Local\Temp\90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe
    "C:\Users\Admin\AppData\Local\Temp\90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377.exe"
    3⤵
    - 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:2412
  - - C:\Windows\SysWOW64\igfxvm32.exe
      "C:\Windows\SysWOW64\igfxvm32.exe" C:\Users\Admin\AppData\Local\Temp\90598B~1.EXE
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2444
    - - 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:2716

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\igfxvm32.exe

Filesize
140KB

MD5
ecf1dccb831f5d9f64e12e69cb04be74

SHA1
c448fe8792bb8b3155f0f4fc360d3053155a64c5

SHA256
90598bd93b43453acaa3d435d29f483c088752e5d457d7a9bcff49a39e41c377

SHA512
d81cb71368738815dba2a8a14e1ce36a9f4251e97cbc177ea8ece1629fc44efe17a20e2f6c18b570f1638821a39a6ea5ee95a54f633701345fe585770d340770

Download Submit
memory/1200-43-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/1200-41-0x00000000024E0000-0x00000000024FE000-memory.dmp

Filesize
120KB

Download
memory/2412-7-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2412-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2412-0-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2412-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2412-5-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2412-8-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2412-35-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2412-39-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2412-10-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2412-9-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2716-36-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2716-40-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads