metasploit | 8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b

General

Target

8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
Size

250KB
MD5

bf80b02a63eff8ff6222d97be469c9b3
SHA1

e2d5e673f47e07f9278ea88e9a47271be3aba62b
SHA256

8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b
SHA512

8a7a6115683fe9d466875ea2bbd0e57339ee116bf0afb876efc343bd23ce4f64e98736a47ec895a0420f0f7425acdaa4b6ade4c21e6aea4ac7d6385686e879c2
SSDEEP

3072:Xj99StNd3rZWTOwoIP/o7kTePQkwrzHqqL5BSbg1NEjYLg3qkbqC:z9atWS1IPkIePQlrzHqw6j1aBC

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 2 TTPs 8 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	igfxvl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	igfxvl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	igfxvl32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxvl32.exe = "C:\\Windows\\SysWOW64\\igfxvl32.exe:*:Enabled:Intel Auto Updater"	igfxvl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxvl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	igfxvl32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	igfxvl32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxvl32.exe = "C:\\Windows\\SysWOW64\\igfxvl32.exe:*:Enabled:Intel Auto Updater"	igfxvl32.exe

Executes dropped EXE 2 IoCs

pid	Process
5100	igfxvl32.exe
4056	igfxvl32.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1608-133-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/1608-135-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/1608-136-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/1608-137-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/1608-143-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/4056-146-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/4056-147-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/4056-148-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral2/memory/4056-149-0x0000000000400000-0x0000000000467000-memory.dmp	upx

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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	igfxvl32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Intel Auto Updater = "C:\\Windows\\SysWOW64\\igfxvl32.exe"	igfxvl32.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	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxvl32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	igfxvl32.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	igfxvl32.exe
File opened for modification	C:\Windows\SysWOW64\igfxvl32.exe	igfxvl32.exe
File opened for modification	C:\Windows\SysWOW64\	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
File opened for modification	C:\Windows\SysWOW64\igfxvl32.exe	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
File created	C:\Windows\SysWOW64\igfxvl32.exe	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5040 set thread context of 1608	5040	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	79
PID 5100 set thread context of 4056	5100	igfxvl32.exe	81

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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\	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
1608	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
1608	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
1608	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
1608	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe
4056	igfxvl32.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 1608	5040	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	79
PID 5040 wrote to memory of 1608	5040	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	79
PID 5040 wrote to memory of 1608	5040	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	79
PID 5040 wrote to memory of 1608	5040	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	79
PID 5040 wrote to memory of 1608	5040	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	79
PID 5040 wrote to memory of 1608	5040	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	79
PID 5040 wrote to memory of 1608	5040	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	79
PID 5040 wrote to memory of 1608	5040	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	79
PID 1608 wrote to memory of 5100	1608	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	80
PID 1608 wrote to memory of 5100	1608	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	80
PID 1608 wrote to memory of 5100	1608	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	80
PID 5100 wrote to memory of 4056	5100	igfxvl32.exe	81
PID 5100 wrote to memory of 4056	5100	igfxvl32.exe	81
PID 5100 wrote to memory of 4056	5100	igfxvl32.exe	81
PID 5100 wrote to memory of 4056	5100	igfxvl32.exe	81
PID 5100 wrote to memory of 4056	5100	igfxvl32.exe	81
PID 5100 wrote to memory of 4056	5100	igfxvl32.exe	81
PID 5100 wrote to memory of 4056	5100	igfxvl32.exe	81
PID 5100 wrote to memory of 4056	5100	igfxvl32.exe	81
PID 4056 wrote to memory of 380	4056	igfxvl32.exe	37
PID 4056 wrote to memory of 380	4056	igfxvl32.exe	37

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:380
- C:\Users\Admin\AppData\Local\Temp\8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
  "C:\Users\Admin\AppData\Local\Temp\8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:5040
- - C:\Users\Admin\AppData\Local\Temp\8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
    "C:\Users\Admin\AppData\Local\Temp\8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.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:1608
  - - C:\Windows\SysWOW64\igfxvl32.exe
      "C:\Windows\SysWOW64\igfxvl32.exe" C:\Users\Admin\AppData\Local\Temp\8A1588~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:5100
    - - C:\Windows\SysWOW64\igfxvl32.exe
        
        "C:\Windows\SysWOW64\igfxvl32.exe" C:\Users\Admin\AppData\Local\Temp\8A1588~1.EXE
        5⤵
        Modifies firewall policy service
        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:4056

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

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\igfxvl32.exe

Filesize
250KB

MD5
bf80b02a63eff8ff6222d97be469c9b3

SHA1
e2d5e673f47e07f9278ea88e9a47271be3aba62b

SHA256
8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b

SHA512
8a7a6115683fe9d466875ea2bbd0e57339ee116bf0afb876efc343bd23ce4f64e98736a47ec895a0420f0f7425acdaa4b6ade4c21e6aea4ac7d6385686e879c2

Download Submit
C:\Windows\SysWOW64\igfxvl32.exe

Filesize
250KB

MD5
bf80b02a63eff8ff6222d97be469c9b3

SHA1
e2d5e673f47e07f9278ea88e9a47271be3aba62b

SHA256
8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b

SHA512
8a7a6115683fe9d466875ea2bbd0e57339ee116bf0afb876efc343bd23ce4f64e98736a47ec895a0420f0f7425acdaa4b6ade4c21e6aea4ac7d6385686e879c2

Download Submit
C:\Windows\SysWOW64\igfxvl32.exe

Filesize
250KB

MD5
bf80b02a63eff8ff6222d97be469c9b3

SHA1
e2d5e673f47e07f9278ea88e9a47271be3aba62b

SHA256
8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b

SHA512
8a7a6115683fe9d466875ea2bbd0e57339ee116bf0afb876efc343bd23ce4f64e98736a47ec895a0420f0f7425acdaa4b6ade4c21e6aea4ac7d6385686e879c2

Download Submit
memory/1608-136-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1608-137-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1608-135-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1608-143-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1608-133-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4056-146-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4056-147-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4056-148-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/4056-149-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads