metasploit | b7d3046bf47466ae1240e4ff4e02d0c95cc0a48ae330ce0bf335a296ae06ca49

General

Target
78e3ab7007a3dae96afccd388c869933.exe
Size 266KB
Sample240127-blmkesabe4
SHA256 b7d3046bf47466ae1240e4ff4e02d0c95cc0a48ae330ce0bf335a296ae06ca49
MD5 78e3ab7007a3dae96afccd388c869933
SHA1 cb5c9c74004506500a6c4e5cb431e246bb8c0352
SHA512 c07fa9c94e0f59b795b821760ee2b72490af2b62bc4913c99c1ba17655be389ee91fa347de2ee3d8309911681ec0cab037fdc5417516b693cca45556a8b7c659
SSDEEP 6144:LWQXbSjopWSmLvQzfhtFrvb8xu0moP/SHD9LufoJ:aAmspWSmLvChtFrvDDjRn
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\AuthorizedApplications\List	igfxsvc86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	igfxsvc86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	igfxsvc86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxsvc86.exe = "C:\\Windows\\SysWOW64\\igfxsvc86.exe:*:Enabled:Intel Service Manager"	igfxsvc86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxsvc86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	igfxsvc86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	igfxsvc86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxsvc86.exe = "C:\\Windows\\SysWOW64\\igfxsvc86.exe:*:Enabled:Intel Service Manager"	igfxsvc86.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation	78e3ab7007a3dae96afccd388c869933.exe

Deletes itself 1 IoCs

pid	Process
1620	igfxsvc86.exe

Executes dropped EXE 2 IoCs

pid	Process
1724	igfxsvc86.exe
1620	igfxsvc86.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4520-0-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4520-2-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4520-4-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4520-3-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1620-43-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/4520-44-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1620-46-0x0000000000400000-0x0000000000453000-memory.dmp	upx
behavioral2/memory/1620-47-0x0000000000400000-0x0000000000453000-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 Service Manager = "C:\\Windows\\SysWOW64\\igfxsvc86.exe"	igfxsvc86.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	78e3ab7007a3dae96afccd388c869933.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxsvc86.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	igfxsvc86.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	78e3ab7007a3dae96afccd388c869933.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	igfxsvc86.exe
File opened for modification	C:\Windows\SysWOW64\	78e3ab7007a3dae96afccd388c869933.exe
File opened for modification	C:\Windows\SysWOW64\igfxsvc86.exe	78e3ab7007a3dae96afccd388c869933.exe
File created	C:\Windows\SysWOW64\igfxsvc86.exe	78e3ab7007a3dae96afccd388c869933.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4268 set thread context of 4520	4268	78e3ab7007a3dae96afccd388c869933.exe	85
PID 1724 set thread context of 1620	1724	igfxsvc86.exe	94

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\	78e3ab7007a3dae96afccd388c869933.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4520	78e3ab7007a3dae96afccd388c869933.exe
4520	78e3ab7007a3dae96afccd388c869933.exe
4520	78e3ab7007a3dae96afccd388c869933.exe
4520	78e3ab7007a3dae96afccd388c869933.exe
1620	igfxsvc86.exe
1620	igfxsvc86.exe
1620	igfxsvc86.exe
1620	igfxsvc86.exe
1620	igfxsvc86.exe
1620	igfxsvc86.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4268 wrote to memory of 4520	4268	78e3ab7007a3dae96afccd388c869933.exe	85
PID 4268 wrote to memory of 4520	4268	78e3ab7007a3dae96afccd388c869933.exe	85
PID 4268 wrote to memory of 4520	4268	78e3ab7007a3dae96afccd388c869933.exe	85
PID 4268 wrote to memory of 4520	4268	78e3ab7007a3dae96afccd388c869933.exe	85
PID 4268 wrote to memory of 4520	4268	78e3ab7007a3dae96afccd388c869933.exe	85
PID 4268 wrote to memory of 4520	4268	78e3ab7007a3dae96afccd388c869933.exe	85
PID 4268 wrote to memory of 4520	4268	78e3ab7007a3dae96afccd388c869933.exe	85
PID 4268 wrote to memory of 4520	4268	78e3ab7007a3dae96afccd388c869933.exe	85
PID 4520 wrote to memory of 1724	4520	78e3ab7007a3dae96afccd388c869933.exe	93
PID 4520 wrote to memory of 1724	4520	78e3ab7007a3dae96afccd388c869933.exe	93
PID 4520 wrote to memory of 1724	4520	78e3ab7007a3dae96afccd388c869933.exe	93
PID 1724 wrote to memory of 1620	1724	igfxsvc86.exe	94
PID 1724 wrote to memory of 1620	1724	igfxsvc86.exe	94
PID 1724 wrote to memory of 1620	1724	igfxsvc86.exe	94
PID 1724 wrote to memory of 1620	1724	igfxsvc86.exe	94
PID 1724 wrote to memory of 1620	1724	igfxsvc86.exe	94
PID 1724 wrote to memory of 1620	1724	igfxsvc86.exe	94
PID 1724 wrote to memory of 1620	1724	igfxsvc86.exe	94
PID 1724 wrote to memory of 1620	1724	igfxsvc86.exe	94
PID 1620 wrote to memory of 3488	1620	igfxsvc86.exe	43
PID 1620 wrote to memory of 3488	1620	igfxsvc86.exe	43

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3488
- C:\Users\Admin\AppData\Local\Temp\78e3ab7007a3dae96afccd388c869933.exe
  "C:\Users\Admin\AppData\Local\Temp\78e3ab7007a3dae96afccd388c869933.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4268
- - C:\Users\Admin\AppData\Local\Temp\78e3ab7007a3dae96afccd388c869933.exe
    "C:\Users\Admin\AppData\Local\Temp\78e3ab7007a3dae96afccd388c869933.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:4520
  - - C:\Windows\SysWOW64\igfxsvc86.exe
      "C:\Windows\SysWOW64\igfxsvc86.exe" C:\Users\Admin\AppData\Local\Temp\78E3AB~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:1724
    - - C:\Windows\SysWOW64\igfxsvc86.exe
        
        "C:\Windows\SysWOW64\igfxsvc86.exe" C:\Users\Admin\AppData\Local\Temp\78E3AB~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:1620

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

Replay Monitor

Loading Replay Monitor...

Downloads

igfxsvc86.exe

Path C:\Windows\SysWOW64\igfxsvc86.exe
Size 266KB
SHA256 b7d3046bf47466ae1240e4ff4e02d0c95cc0a48ae330ce0bf335a296ae06ca49
MD5 78e3ab7007a3dae96afccd388c869933
SHA1 cb5c9c74004506500a6c4e5cb431e246bb8c0352
SHA512 c07fa9c94e0f59b795b821760ee2b72490af2b62bc4913c99c1ba17655be389ee91fa347de2ee3d8309911681ec0cab037fdc5417516b693cca45556a8b7c659
SSDEEP 6144:LWQXbSjopWSmLvQzfhtFrvb8xu0moP/SHD9LufoJ:aAmspWSmLvChtFrvDDjRn
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1620-43-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/1620-46-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/1620-47-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/4520-0-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/4520-2-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/4520-4-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/4520-3-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/4520-44-0x0000000000400000-0x0000000000453000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads