metasploit | a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa

General

Target

a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
Size

251KB
MD5

99ec3cf0ec503d95714a87a69ec7269e
SHA1

c694585b2b51824328ae2431f507a0e41d4af0e9
SHA256

a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa
SHA512

d9c63074b36005347b74db258f554619f7cbc67dc66f0053dc2330916a8fa8820107571a407a4c81798a54094881819478577c6b4cfa7c580c3c46506d14c6e4
SSDEEP

6144:JTkwIQVIcEd/haua5r5whMKH2I0CWZZs4oyk/C9AuEn:JgzgIcEdehWrJ0CesdZ/

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:

wmphn32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmphn32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmphn32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmphn32.exe = "C:\\Windows\\SysWOW64\\wmphn32.exe:*:Enabled:Windows Host Controller"	wmphn32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmphn32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmphn32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmphn32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmphn32.exe = "C:\\Windows\\SysWOW64\\wmphn32.exe:*:Enabled:Windows Host Controller"	wmphn32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmphn32.exe

Executes dropped EXE 2 IoCs

Processes:

wmphn32.exewmphn32.exe

pid process

4924 wmphn32.exe
4844 wmphn32.exe

pid	process
4924	wmphn32.exe
4844	wmphn32.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1964-133-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1964-135-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1964-136-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/1964-137-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral2/memory/1964-146-0x0000000000400000-0x0000000000446000-memory.dmp	upx
behavioral2/memory/4844-148-0x0000000000400000-0x000000000044C000-memory.dmp	upx
behavioral2/memory/4844-149-0x0000000000400000-0x000000000044C000-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:

a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wmphn32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	wmphn32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Host Controller = "C:\\Windows\\SysWOW64\\wmphn32.exe"	wmphn32.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:

a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exewmphn32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmphn32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmphn32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe

Drops file in System32 directory 4 IoCs

Processes:

a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exewmphn32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
File opened for modification	C:\Windows\SysWOW64\wmphn32.exe	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
File created	C:\Windows\SysWOW64\wmphn32.exe	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
File opened for modification	C:\Windows\SysWOW64\	wmphn32.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exewmphn32.exe

description	pid	process	target process
PID 4460 set thread context of 1964	4460	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
PID 4924 set thread context of 4844	4924	wmphn32.exe	wmphn32.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:

a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exewmphn32.exe

pid	process
1964	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
1964	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
1964	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
1964	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
4844	wmphn32.exe
4844	wmphn32.exe
4844	wmphn32.exe
4844	wmphn32.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe

pid process

4460 a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe

pid	process
4460	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exea729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exewmphn32.exewmphn32.exe

description	pid	process	target process
PID 4460 wrote to memory of 1964	4460	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
PID 4460 wrote to memory of 1964	4460	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
PID 4460 wrote to memory of 1964	4460	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
PID 4460 wrote to memory of 1964	4460	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
PID 4460 wrote to memory of 1964	4460	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
PID 4460 wrote to memory of 1964	4460	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
PID 4460 wrote to memory of 1964	4460	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
PID 1964 wrote to memory of 4924	1964	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe	wmphn32.exe
PID 1964 wrote to memory of 4924	1964	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe	wmphn32.exe
PID 1964 wrote to memory of 4924	1964	a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe	wmphn32.exe
PID 4924 wrote to memory of 4844	4924	wmphn32.exe	wmphn32.exe
PID 4924 wrote to memory of 4844	4924	wmphn32.exe	wmphn32.exe
PID 4924 wrote to memory of 4844	4924	wmphn32.exe	wmphn32.exe
PID 4924 wrote to memory of 4844	4924	wmphn32.exe	wmphn32.exe
PID 4924 wrote to memory of 4844	4924	wmphn32.exe	wmphn32.exe
PID 4924 wrote to memory of 4844	4924	wmphn32.exe	wmphn32.exe
PID 4924 wrote to memory of 4844	4924	wmphn32.exe	wmphn32.exe
PID 4844 wrote to memory of 2640	4844	wmphn32.exe	Explorer.EXE
PID 4844 wrote to memory of 2640	4844	wmphn32.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2640

C:\Users\Admin\AppData\Local\Temp\a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
"C:\Users\Admin\AppData\Local\Temp\a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4460

C:\Users\Admin\AppData\Local\Temp\a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.exe
"C:\Users\Admin\AppData\Local\Temp\a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa.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:1964

C:\Windows\SysWOW64\wmphn32.exe
"C:\Windows\SysWOW64\wmphn32.exe" C:\Users\Admin\AppData\Local\Temp\A729FC~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4924

C:\Windows\SysWOW64\wmphn32.exe
"C:\Windows\SysWOW64\wmphn32.exe" C:\Users\Admin\AppData\Local\Temp\A729FC~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:4844

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\wmphn32.exe
Filesize
251KB

MD5
99ec3cf0ec503d95714a87a69ec7269e

SHA1
c694585b2b51824328ae2431f507a0e41d4af0e9

SHA256
a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa

SHA512
d9c63074b36005347b74db258f554619f7cbc67dc66f0053dc2330916a8fa8820107571a407a4c81798a54094881819478577c6b4cfa7c580c3c46506d14c6e4

Download Submit
C:\Windows\SysWOW64\wmphn32.exe
Filesize
251KB

MD5
99ec3cf0ec503d95714a87a69ec7269e

SHA1
c694585b2b51824328ae2431f507a0e41d4af0e9

SHA256
a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa

SHA512
d9c63074b36005347b74db258f554619f7cbc67dc66f0053dc2330916a8fa8820107571a407a4c81798a54094881819478577c6b4cfa7c580c3c46506d14c6e4

Download Submit
C:\Windows\SysWOW64\wmphn32.exe
Filesize
251KB

MD5
99ec3cf0ec503d95714a87a69ec7269e

SHA1
c694585b2b51824328ae2431f507a0e41d4af0e9

SHA256
a729fcdadbaeb2b4dd8a0e3672eabc174fac2c543a17c6438d3999509a6691aa

SHA512
d9c63074b36005347b74db258f554619f7cbc67dc66f0053dc2330916a8fa8820107571a407a4c81798a54094881819478577c6b4cfa7c580c3c46506d14c6e4

Download Submit
memory/1964-136-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1964-137-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/1964-135-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1964-133-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1964-132-0x0000000000000000-mapping.dmp

Download
memory/1964-146-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4844-141-0x0000000000000000-mapping.dmp

Download
memory/4844-148-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4844-149-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4924-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads