metasploit | a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1

General

Target

a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe
Size

264KB
MD5

5cb6698f8beca5f0f6a5697a825f1856
SHA1

a4ab06814739c25478cbbb70696435e8689c7276
SHA256

a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1
SHA512

8ef40af9657b0267702ee545c93a94582d5d0bf3f37a6938244ee5af4c32f8ca0e85278fc211d646855bccdbf448883022f64f87482353a9f04b03ccaf1fe2bd
SSDEEP

6144:n+k07EMlgS0w9VSVgrzt0Sj7IXFrLKhA9YrqDj7IXFrL:n+k0wLvwci

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	igfxtd64.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxtd64.exe = "C:\\Windows\\SysWOW64\\igfxtd64.exe:*:Enabled:Intel Task Daemon"	igfxtd64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxtd64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	igfxtd64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	igfxtd64.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxtd64.exe = "C:\\Windows\\SysWOW64\\igfxtd64.exe:*:Enabled:Intel Task Daemon"	igfxtd64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	igfxtd64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	igfxtd64.exe

Executes dropped EXE 2 IoCs

pid	Process
1504	igfxtd64.exe
420	igfxtd64.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2040-133-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/2040-135-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/2040-136-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/2040-137-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/2040-141-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/420-148-0x0000000000400000-0x0000000000464000-memory.dmp	upx
behavioral2/memory/420-149-0x0000000000400000-0x0000000000464000-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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.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	igfxtd64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Intel Task Daemon = "C:\\Windows\\SysWOW64\\igfxtd64.exe"	igfxtd64.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	igfxtd64.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	igfxtd64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe

Drops file in System32 directory 5 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\igfxtd64.exe	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe
File opened for modification	C:\Windows\SysWOW64\	igfxtd64.exe
File opened for modification	C:\Windows\SysWOW64\igfxtd64.exe	igfxtd64.exe
File opened for modification	C:\Windows\SysWOW64\	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe
File opened for modification	C:\Windows\SysWOW64\igfxtd64.exe	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4764 set thread context of 2040	4764	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe	80
PID 1504 set thread context of 420	1504	igfxtd64.exe	82

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\	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
2040	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe
2040	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe
2040	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe
2040	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe
420	igfxtd64.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4764 wrote to memory of 2040	4764	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe	80
PID 4764 wrote to memory of 2040	4764	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe	80
PID 4764 wrote to memory of 2040	4764	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe	80
PID 4764 wrote to memory of 2040	4764	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe	80
PID 4764 wrote to memory of 2040	4764	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe	80
PID 4764 wrote to memory of 2040	4764	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe	80
PID 4764 wrote to memory of 2040	4764	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe	80
PID 4764 wrote to memory of 2040	4764	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe	80
PID 2040 wrote to memory of 1504	2040	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe	81
PID 2040 wrote to memory of 1504	2040	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe	81
PID 2040 wrote to memory of 1504	2040	a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe	81
PID 1504 wrote to memory of 420	1504	igfxtd64.exe	82
PID 1504 wrote to memory of 420	1504	igfxtd64.exe	82
PID 1504 wrote to memory of 420	1504	igfxtd64.exe	82
PID 1504 wrote to memory of 420	1504	igfxtd64.exe	82
PID 1504 wrote to memory of 420	1504	igfxtd64.exe	82
PID 1504 wrote to memory of 420	1504	igfxtd64.exe	82
PID 1504 wrote to memory of 420	1504	igfxtd64.exe	82
PID 1504 wrote to memory of 420	1504	igfxtd64.exe	82
PID 420 wrote to memory of 2576	420	igfxtd64.exe	53
PID 420 wrote to memory of 2576	420	igfxtd64.exe	53

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2576
- C:\Users\Admin\AppData\Local\Temp\a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe
  "C:\Users\Admin\AppData\Local\Temp\a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4764
- - C:\Users\Admin\AppData\Local\Temp\a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.exe
    "C:\Users\Admin\AppData\Local\Temp\a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1.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:2040
  - - C:\Windows\SysWOW64\igfxtd64.exe
      "C:\Windows\SysWOW64\igfxtd64.exe" C:\Users\Admin\AppData\Local\Temp\A835BB~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:1504
    - - C:\Windows\SysWOW64\igfxtd64.exe
        
        "C:\Windows\SysWOW64\igfxtd64.exe" C:\Users\Admin\AppData\Local\Temp\A835BB~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:420

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\igfxtd64.exe

Filesize
264KB

MD5
5cb6698f8beca5f0f6a5697a825f1856

SHA1
a4ab06814739c25478cbbb70696435e8689c7276

SHA256
a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1

SHA512
8ef40af9657b0267702ee545c93a94582d5d0bf3f37a6938244ee5af4c32f8ca0e85278fc211d646855bccdbf448883022f64f87482353a9f04b03ccaf1fe2bd

Download Submit
C:\Windows\SysWOW64\igfxtd64.exe

Filesize
264KB

MD5
5cb6698f8beca5f0f6a5697a825f1856

SHA1
a4ab06814739c25478cbbb70696435e8689c7276

SHA256
a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1

SHA512
8ef40af9657b0267702ee545c93a94582d5d0bf3f37a6938244ee5af4c32f8ca0e85278fc211d646855bccdbf448883022f64f87482353a9f04b03ccaf1fe2bd

Download Submit
C:\Windows\SysWOW64\igfxtd64.exe

Filesize
264KB

MD5
5cb6698f8beca5f0f6a5697a825f1856

SHA1
a4ab06814739c25478cbbb70696435e8689c7276

SHA256
a835bb2568775c32106ac4ef8b376910bc09849b6e5611d8f28609cf7a4fefc1

SHA512
8ef40af9657b0267702ee545c93a94582d5d0bf3f37a6938244ee5af4c32f8ca0e85278fc211d646855bccdbf448883022f64f87482353a9f04b03ccaf1fe2bd

Download Submit
memory/420-148-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/420-149-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2040-137-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2040-136-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2040-135-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2040-141-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download
memory/2040-133-0x0000000000400000-0x0000000000464000-memory.dmp

Filesize
400KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads