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 4 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
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
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
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	igfxvl32.exe

Executes dropped EXE 2 IoCs

pid	Process
2012	igfxvl32.exe
1812	igfxvl32.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1208-55-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1208-57-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1208-58-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1208-60-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1208-64-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1208-65-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1208-66-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1208-67-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1208-68-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1208-84-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1812-88-0x0000000000400000-0x0000000000467000-memory.dmp	upx
behavioral1/memory/1812-89-0x0000000000400000-0x0000000000467000-memory.dmp	upx

Deletes itself 1 IoCs

pid	Process
1812	igfxvl32.exe

Loads dropped DLL 5 IoCs

pid	Process
1208	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
1208	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
1992	WerFault.exe
1992	WerFault.exe
1992	WerFault.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 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe

Drops file in System32 directory 4 IoCs

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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1232 set thread context of 1208	1232	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	28
PID 2012 set thread context of 1812	2012	igfxvl32.exe	30

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1992	1812	WerFault.exe	30

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1208	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
1208	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
1812	igfxvl32.exe
1812	igfxvl32.exe
1812	igfxvl32.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 1208	1232	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	28
PID 1232 wrote to memory of 1208	1232	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	28
PID 1232 wrote to memory of 1208	1232	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	28
PID 1232 wrote to memory of 1208	1232	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	28
PID 1232 wrote to memory of 1208	1232	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	28
PID 1232 wrote to memory of 1208	1232	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	28
PID 1232 wrote to memory of 1208	1232	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	28
PID 1232 wrote to memory of 1208	1232	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	28
PID 1208 wrote to memory of 2012	1208	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	29
PID 1208 wrote to memory of 2012	1208	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	29
PID 1208 wrote to memory of 2012	1208	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	29
PID 1208 wrote to memory of 2012	1208	8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe	29
PID 2012 wrote to memory of 1812	2012	igfxvl32.exe	30
PID 2012 wrote to memory of 1812	2012	igfxvl32.exe	30
PID 2012 wrote to memory of 1812	2012	igfxvl32.exe	30
PID 2012 wrote to memory of 1812	2012	igfxvl32.exe	30
PID 2012 wrote to memory of 1812	2012	igfxvl32.exe	30
PID 2012 wrote to memory of 1812	2012	igfxvl32.exe	30
PID 2012 wrote to memory of 1812	2012	igfxvl32.exe	30
PID 2012 wrote to memory of 1812	2012	igfxvl32.exe	30
PID 1812 wrote to memory of 1276	1812	igfxvl32.exe	10
PID 1812 wrote to memory of 1276	1812	igfxvl32.exe	10
PID 1812 wrote to memory of 1992	1812	igfxvl32.exe	32
PID 1812 wrote to memory of 1992	1812	igfxvl32.exe	32
PID 1812 wrote to memory of 1992	1812	igfxvl32.exe	32
PID 1812 wrote to memory of 1992	1812	igfxvl32.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1276
- 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:1232
- - C:\Users\Admin\AppData\Local\Temp\8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe
    "C:\Users\Admin\AppData\Local\Temp\8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b.exe"
    3⤵
    - Loads dropped DLL
    - Maps connected drives based on registry
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1208
  - - 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:2012
    - - 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
        Deletes itself
        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:1812
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1812 -s 728
        6⤵
        Loads dropped DLL
        Program crash
        
        PID:1992

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

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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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
\Windows\SysWOW64\igfxvl32.exe

Filesize
250KB

MD5
bf80b02a63eff8ff6222d97be469c9b3

SHA1
e2d5e673f47e07f9278ea88e9a47271be3aba62b

SHA256
8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b

SHA512
8a7a6115683fe9d466875ea2bbd0e57339ee116bf0afb876efc343bd23ce4f64e98736a47ec895a0420f0f7425acdaa4b6ade4c21e6aea4ac7d6385686e879c2

Download Submit
\Windows\SysWOW64\igfxvl32.exe

Filesize
250KB

MD5
bf80b02a63eff8ff6222d97be469c9b3

SHA1
e2d5e673f47e07f9278ea88e9a47271be3aba62b

SHA256
8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b

SHA512
8a7a6115683fe9d466875ea2bbd0e57339ee116bf0afb876efc343bd23ce4f64e98736a47ec895a0420f0f7425acdaa4b6ade4c21e6aea4ac7d6385686e879c2

Download Submit
\Windows\SysWOW64\igfxvl32.exe

Filesize
250KB

MD5
bf80b02a63eff8ff6222d97be469c9b3

SHA1
e2d5e673f47e07f9278ea88e9a47271be3aba62b

SHA256
8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b

SHA512
8a7a6115683fe9d466875ea2bbd0e57339ee116bf0afb876efc343bd23ce4f64e98736a47ec895a0420f0f7425acdaa4b6ade4c21e6aea4ac7d6385686e879c2

Download Submit
\Windows\SysWOW64\igfxvl32.exe

Filesize
250KB

MD5
bf80b02a63eff8ff6222d97be469c9b3

SHA1
e2d5e673f47e07f9278ea88e9a47271be3aba62b

SHA256
8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b

SHA512
8a7a6115683fe9d466875ea2bbd0e57339ee116bf0afb876efc343bd23ce4f64e98736a47ec895a0420f0f7425acdaa4b6ade4c21e6aea4ac7d6385686e879c2

Download Submit
\Windows\SysWOW64\igfxvl32.exe

Filesize
250KB

MD5
bf80b02a63eff8ff6222d97be469c9b3

SHA1
e2d5e673f47e07f9278ea88e9a47271be3aba62b

SHA256
8a1588400910c0c05beb3b4f59c0392ad541bbca9aad50e9fbf4d220e1af115b

SHA512
8a7a6115683fe9d466875ea2bbd0e57339ee116bf0afb876efc343bd23ce4f64e98736a47ec895a0420f0f7425acdaa4b6ade4c21e6aea4ac7d6385686e879c2

Download Submit
memory/1208-63-0x0000000075F51000-0x0000000075F53000-memory.dmp

Filesize
8KB

Download
memory/1208-60-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1208-67-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1208-68-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1208-65-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1208-64-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1208-55-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1208-54-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1208-66-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1208-57-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1208-84-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1208-58-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1276-90-0x0000000002A90000-0x0000000002AAE000-memory.dmp

Filesize
120KB

Download
memory/1812-89-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download
memory/1812-88-0x0000000000400000-0x0000000000467000-memory.dmp

Filesize
412KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads