metasploit | 7fd37b7079c2098d7bc22cb6eb1b80d3a35c0a92059e6bda0715ae52a9fd40de

General

Target
61249a0cc6af21b109adf17dcae2ed76.exe
Size 214KB
Sample240116-3d9tjacfep
SHA256 7fd37b7079c2098d7bc22cb6eb1b80d3a35c0a92059e6bda0715ae52a9fd40de
MD5 61249a0cc6af21b109adf17dcae2ed76
SHA1 60d1048ba33260f88e7741eba18b99728925d3da
SHA512 18a506dea8740dd84fd841293aa349b4bc2988d6d4d50be657c09631f2e3bd90f89caf7b6be24097d40f073b225b8e6c0e025e194b224dd29d2727d2db948467
SSDEEP 6144:zN2xrOAbA8+LL8G5MTfBj+glD3ddYORul:zYdOgA9LfmTfjlD3dd5Ul
MD5 SHA1 SHA512 SSDEEP

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

Windows Service

T1543.003

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	igfxbt86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	igfxbt86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxbt86.exe = "C:\\Windows\\SysWOW64\\igfxbt86.exe:*:Enabled:Intel Backup Monitor"	igfxbt86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxbt86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	igfxbt86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	igfxbt86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxbt86.exe = "C:\\Windows\\SysWOW64\\igfxbt86.exe:*:Enabled:Intel Backup Monitor"	igfxbt86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	igfxbt86.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-1-5-21-1232405761-1209240240-3206092754-1000\Control Panel\International\Geo\Nation	61249a0cc6af21b109adf17dcae2ed76.exe

Deletes itself 1 IoCs

pid	Process
1264	igfxbt86.exe

Executes dropped EXE 2 IoCs

pid	Process
1552	igfxbt86.exe
1264	igfxbt86.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2376-0-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2376-2-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2376-4-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1264-43-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2376-44-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/2376-45-0x0000000000400000-0x0000000000444000-memory.dmp	upx
behavioral2/memory/1264-46-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1264-47-0x0000000000400000-0x000000000044C000-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 Backup Monitor = "C:\\Windows\\SysWOW64\\igfxbt86.exe"	igfxbt86.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	61249a0cc6af21b109adf17dcae2ed76.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	61249a0cc6af21b109adf17dcae2ed76.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxbt86.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	igfxbt86.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	61249a0cc6af21b109adf17dcae2ed76.exe
File opened for modification	C:\Windows\SysWOW64\igfxbt86.exe	61249a0cc6af21b109adf17dcae2ed76.exe
File created	C:\Windows\SysWOW64\igfxbt86.exe	61249a0cc6af21b109adf17dcae2ed76.exe
File opened for modification	C:\Windows\SysWOW64\	igfxbt86.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3728 set thread context of 2376	3728	61249a0cc6af21b109adf17dcae2ed76.exe	86
PID 1552 set thread context of 1264	1552	igfxbt86.exe	97

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\	61249a0cc6af21b109adf17dcae2ed76.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2376	61249a0cc6af21b109adf17dcae2ed76.exe
2376	61249a0cc6af21b109adf17dcae2ed76.exe
2376	61249a0cc6af21b109adf17dcae2ed76.exe
2376	61249a0cc6af21b109adf17dcae2ed76.exe
1264	igfxbt86.exe
1264	igfxbt86.exe
1264	igfxbt86.exe
1264	igfxbt86.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3728	61249a0cc6af21b109adf17dcae2ed76.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3728 wrote to memory of 2376	3728	61249a0cc6af21b109adf17dcae2ed76.exe	86
PID 3728 wrote to memory of 2376	3728	61249a0cc6af21b109adf17dcae2ed76.exe	86
PID 3728 wrote to memory of 2376	3728	61249a0cc6af21b109adf17dcae2ed76.exe	86
PID 3728 wrote to memory of 2376	3728	61249a0cc6af21b109adf17dcae2ed76.exe	86
PID 3728 wrote to memory of 2376	3728	61249a0cc6af21b109adf17dcae2ed76.exe	86
PID 3728 wrote to memory of 2376	3728	61249a0cc6af21b109adf17dcae2ed76.exe	86
PID 3728 wrote to memory of 2376	3728	61249a0cc6af21b109adf17dcae2ed76.exe	86
PID 2376 wrote to memory of 1552	2376	61249a0cc6af21b109adf17dcae2ed76.exe	96
PID 2376 wrote to memory of 1552	2376	61249a0cc6af21b109adf17dcae2ed76.exe	96
PID 2376 wrote to memory of 1552	2376	61249a0cc6af21b109adf17dcae2ed76.exe	96
PID 1552 wrote to memory of 1264	1552	igfxbt86.exe	97
PID 1552 wrote to memory of 1264	1552	igfxbt86.exe	97
PID 1552 wrote to memory of 1264	1552	igfxbt86.exe	97
PID 1552 wrote to memory of 1264	1552	igfxbt86.exe	97
PID 1552 wrote to memory of 1264	1552	igfxbt86.exe	97
PID 1552 wrote to memory of 1264	1552	igfxbt86.exe	97
PID 1552 wrote to memory of 1264	1552	igfxbt86.exe	97
PID 1264 wrote to memory of 3504	1264	igfxbt86.exe	47
PID 1264 wrote to memory of 3504	1264	igfxbt86.exe	47

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3504
- C:\Users\Admin\AppData\Local\Temp\61249a0cc6af21b109adf17dcae2ed76.exe
  "C:\Users\Admin\AppData\Local\Temp\61249a0cc6af21b109adf17dcae2ed76.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:3728
- - C:\Users\Admin\AppData\Local\Temp\61249a0cc6af21b109adf17dcae2ed76.exe
    "C:\Users\Admin\AppData\Local\Temp\61249a0cc6af21b109adf17dcae2ed76.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:2376
  - - C:\Windows\SysWOW64\igfxbt86.exe
      "C:\Windows\SysWOW64\igfxbt86.exe" C:\Users\Admin\AppData\Local\Temp\61249A~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:1552
    - - C:\Windows\SysWOW64\igfxbt86.exe
        
        "C:\Windows\SysWOW64\igfxbt86.exe" C:\Users\Admin\AppData\Local\Temp\61249A~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:1264

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

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

igfxbt86.exe

Path C:\Windows\SysWOW64\igfxbt86.exe
Size 214KB
SHA256 7fd37b7079c2098d7bc22cb6eb1b80d3a35c0a92059e6bda0715ae52a9fd40de
MD5 61249a0cc6af21b109adf17dcae2ed76
SHA1 60d1048ba33260f88e7741eba18b99728925d3da
SHA512 18a506dea8740dd84fd841293aa349b4bc2988d6d4d50be657c09631f2e3bd90f89caf7b6be24097d40f073b225b8e6c0e025e194b224dd29d2727d2db948467
SSDEEP 6144:zN2xrOAbA8+LL8G5MTfBj+glD3ddYORul:zYdOgA9LfmTfjlD3dd5Ul
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1264-43-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/1264-46-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/1264-47-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/2376-0-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/2376-2-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/2376-4-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/2376-44-0x0000000000400000-0x000000000044C000-memory.dmp

Download

memory/2376-45-0x0000000000400000-0x0000000000444000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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