metasploit | dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174

General

Target

dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
Size

224KB
MD5

3afe6fa198d0191ad4470a79126f333e
SHA1

959b9639f05989dfef918070c0bb4aef34047e92
SHA256

dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174
SHA512

f9eb3320d19681f7e728100e1209995210696f5eb28c5c240efcde90ca8788f8b487dcfe4df7310a2d892e79658d5ddfc8262e95ef67ee9a33a9dccd48a5692d
SSDEEP

3072:OyyL6e5KJOUM8GXLimIxlLUQtVWSjFLrjF0TSUSj74JgO0GgGsgWAWUsN4dtv:OrWe8oiGiBrFLXF0mA70GWZU9tv

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

Processes:

igfxcb86.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	igfxcb86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxcb86.exe = "C:\\Windows\\SysWOW64\\igfxcb86.exe:*:Enabled:Intel Display Daemon"	igfxcb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	igfxcb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	igfxcb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	igfxcb86.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\igfxcb86.exe = "C:\\Windows\\SysWOW64\\igfxcb86.exe:*:Enabled:Intel Display Daemon"	igfxcb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	igfxcb86.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	igfxcb86.exe

Executes dropped EXE 2 IoCs

Processes:

igfxcb86.exeigfxcb86.exe

pid process

2816 igfxcb86.exe
4336 igfxcb86.exe

pid	process
2816	igfxcb86.exe
4336	igfxcb86.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2208-133-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2208-135-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2208-136-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/2208-137-0x0000000000400000-0x000000000043D000-memory.dmp	upx
behavioral2/memory/4336-147-0x0000000000400000-0x000000000044B000-memory.dmp	upx
behavioral2/memory/4336-148-0x0000000000400000-0x000000000044B000-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

Processes:

dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

igfxcb86.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Intel Display Daemon = "C:\\Windows\\SysWOW64\\igfxcb86.exe"	igfxcb86.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	igfxcb86.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

Processes:

dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exeigfxcb86.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	igfxcb86.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	igfxcb86.exe

Drops file in System32 directory 4 IoCs

Processes:

dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exeigfxcb86.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\igfxcb86.exe	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
File created	C:\Windows\SysWOW64\igfxcb86.exe	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
File opened for modification	C:\Windows\SysWOW64\	igfxcb86.exe
File opened for modification	C:\Windows\SysWOW64\	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exeigfxcb86.exe

description	pid	process	target process
PID 4424 set thread context of 2208	4424	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
PID 2816 set thread context of 4336	2816	igfxcb86.exe	igfxcb86.exe

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

Processes:

dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exeigfxcb86.exe

pid	process
2208	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
2208	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
2208	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
2208	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
4336	igfxcb86.exe
4336	igfxcb86.exe
4336	igfxcb86.exe
4336	igfxcb86.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe

pid process

4424 dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe

pid	process
4424	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exedfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exeigfxcb86.exeigfxcb86.exe

description	pid	process	target process
PID 4424 wrote to memory of 2208	4424	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
PID 4424 wrote to memory of 2208	4424	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
PID 4424 wrote to memory of 2208	4424	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
PID 4424 wrote to memory of 2208	4424	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
PID 4424 wrote to memory of 2208	4424	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
PID 4424 wrote to memory of 2208	4424	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
PID 4424 wrote to memory of 2208	4424	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
PID 2208 wrote to memory of 2816	2208	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe	igfxcb86.exe
PID 2208 wrote to memory of 2816	2208	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe	igfxcb86.exe
PID 2208 wrote to memory of 2816	2208	dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe	igfxcb86.exe
PID 2816 wrote to memory of 4336	2816	igfxcb86.exe	igfxcb86.exe
PID 2816 wrote to memory of 4336	2816	igfxcb86.exe	igfxcb86.exe
PID 2816 wrote to memory of 4336	2816	igfxcb86.exe	igfxcb86.exe
PID 2816 wrote to memory of 4336	2816	igfxcb86.exe	igfxcb86.exe
PID 2816 wrote to memory of 4336	2816	igfxcb86.exe	igfxcb86.exe
PID 2816 wrote to memory of 4336	2816	igfxcb86.exe	igfxcb86.exe
PID 2816 wrote to memory of 4336	2816	igfxcb86.exe	igfxcb86.exe
PID 4336 wrote to memory of 2708	4336	igfxcb86.exe	Explorer.EXE
PID 4336 wrote to memory of 2708	4336	igfxcb86.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2708

C:\Users\Admin\AppData\Local\Temp\dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
"C:\Users\Admin\AppData\Local\Temp\dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4424

C:\Users\Admin\AppData\Local\Temp\dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.exe
"C:\Users\Admin\AppData\Local\Temp\dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174.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:2208

C:\Windows\SysWOW64\igfxcb86.exe
"C:\Windows\SysWOW64\igfxcb86.exe" C:\Users\Admin\AppData\Local\Temp\DFEF17~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2816

C:\Windows\SysWOW64\igfxcb86.exe
"C:\Windows\SysWOW64\igfxcb86.exe" C:\Users\Admin\AppData\Local\Temp\DFEF17~1.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:4336

Network

MITRE ATT&CK Matrix ATT&CK 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

Query Registry

2

T1012

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\SysWOW64\igfxcb86.exe
Filesize
224KB

MD5
3afe6fa198d0191ad4470a79126f333e

SHA1
959b9639f05989dfef918070c0bb4aef34047e92

SHA256
dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174

SHA512
f9eb3320d19681f7e728100e1209995210696f5eb28c5c240efcde90ca8788f8b487dcfe4df7310a2d892e79658d5ddfc8262e95ef67ee9a33a9dccd48a5692d

Download Submit
C:\Windows\SysWOW64\igfxcb86.exe
Filesize
224KB

MD5
3afe6fa198d0191ad4470a79126f333e

SHA1
959b9639f05989dfef918070c0bb4aef34047e92

SHA256
dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174

SHA512
f9eb3320d19681f7e728100e1209995210696f5eb28c5c240efcde90ca8788f8b487dcfe4df7310a2d892e79658d5ddfc8262e95ef67ee9a33a9dccd48a5692d

Download Submit
C:\Windows\SysWOW64\igfxcb86.exe
Filesize
224KB

MD5
3afe6fa198d0191ad4470a79126f333e

SHA1
959b9639f05989dfef918070c0bb4aef34047e92

SHA256
dfef17deee08ed6bc8405d0da7b46263ab88a77580a48efaf11bc317bbd9e174

SHA512
f9eb3320d19681f7e728100e1209995210696f5eb28c5c240efcde90ca8788f8b487dcfe4df7310a2d892e79658d5ddfc8262e95ef67ee9a33a9dccd48a5692d

Download Submit
memory/2208-132-0x0000000000000000-mapping.dmp

Download
memory/2208-133-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2208-135-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2208-136-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2208-137-0x0000000000400000-0x000000000043D000-memory.dmp

Filesize
244KB

Download
memory/2816-138-0x0000000000000000-mapping.dmp

Download
memory/4336-141-0x0000000000000000-mapping.dmp

Download
memory/4336-147-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4336-148-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads