metasploit | 6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667

General

Target

6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
Size

260KB
MD5

939d220eb5f9d3b8c5d35a975e740127
SHA1

c23a5f9a876bfe496b361606759ac9f1aa602638
SHA256

6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667
SHA512

3b17b80a55571313d68fcb97668482d8c867c453a2211c00736bf321fad27bac8e8906e5284e5419d6e5ccc00bda9635c45012398bafa970f7deff8bb03e5ce7
SSDEEP

6144:qeN95oTK6nfxa2JftDnYfRa2KPY+0H1XTAgfzDDJXvr:qU95oDa2sfSPE

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:

wmprk64.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile	wmprk64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications	wmprk64.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmprk64.exe = "C:\\Windows\\SysWOW64\\wmprk64.exe:*:Enabled:Windows Home Media"	wmprk64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmprk64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	wmprk64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	wmprk64.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmprk64.exe = "C:\\Windows\\SysWOW64\\wmprk64.exe:*:Enabled:Windows Home Media"	wmprk64.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmprk64.exe

Executes dropped EXE 2 IoCs

Processes:

wmprk64.exewmprk64.exe

pid process

4932 wmprk64.exe
4564 wmprk64.exe

pid	process
4932	wmprk64.exe
4564	wmprk64.exe

Sets file execution options in registry 2 TTPs 8 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wmprk64.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe	wmprk64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe\Debugger = "CMD /C>null"	wmprk64.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpCmdRun.exe	wmprk64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpCmdRun.exe\Debugger = "CMD /C>null"	wmprk64.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\epplauncher.exe	wmprk64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\epplauncher.exe\Debugger = "CMD /C>null"	wmprk64.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MsMpEng.exe	wmprk64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MsMpEng.exe\Debugger = "CMD /C>null"	wmprk64.exe

Sets service image path in registry 2 TTPs 1 IoCs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Processes:

wmprk64.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\MsMpSvc\ImagePath = "CMD /C>null" wmprk64.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\MsMpSvc\ImagePath = "CMD /C>null"	wmprk64.exe

UPX packed file 8 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1764-133-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral2/memory/1764-135-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral2/memory/1764-136-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral2/memory/1764-137-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral2/memory/1764-138-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral2/memory/4564-148-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral2/memory/1764-149-0x0000000000400000-0x0000000000462000-memory.dmp	upx
behavioral2/memory/4564-150-0x0000000000400000-0x0000000000462000-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:

6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wmprk64.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	wmprk64.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Home Media = "C:\\Windows\\SysWOW64\\wmprk64.exe"	wmprk64.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:

6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exewmprk64.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmprk64.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	wmprk64.exe

Drops file in System32 directory 5 IoCs

Processes:

6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exewmprk64.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\wmprk64.exe	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
File created	C:\Windows\SysWOW64\wmprk64.exe	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
File opened for modification	C:\Windows\SysWOW64\	wmprk64.exe
File opened for modification	C:\Windows\SysWOW64\wmprk64.exe	wmprk64.exe
File opened for modification	C:\Windows\SysWOW64\	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exewmprk64.exe

description	pid	process	target process
PID 4260 set thread context of 1764	4260	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
PID 4932 set thread context of 4564	4932	wmprk64.exe	wmprk64.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:

6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exewmprk64.exe

pid	process
1764	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
1764	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
1764	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
1764	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe
4564	wmprk64.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exewmprk64.exewmprk64.exe

description	pid	process	target process
PID 4260 wrote to memory of 1764	4260	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
PID 4260 wrote to memory of 1764	4260	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
PID 4260 wrote to memory of 1764	4260	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
PID 4260 wrote to memory of 1764	4260	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
PID 4260 wrote to memory of 1764	4260	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
PID 4260 wrote to memory of 1764	4260	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
PID 4260 wrote to memory of 1764	4260	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
PID 4260 wrote to memory of 1764	4260	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
PID 1764 wrote to memory of 4932	1764	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe	wmprk64.exe
PID 1764 wrote to memory of 4932	1764	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe	wmprk64.exe
PID 1764 wrote to memory of 4932	1764	6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe	wmprk64.exe
PID 4932 wrote to memory of 4564	4932	wmprk64.exe	wmprk64.exe
PID 4932 wrote to memory of 4564	4932	wmprk64.exe	wmprk64.exe
PID 4932 wrote to memory of 4564	4932	wmprk64.exe	wmprk64.exe
PID 4932 wrote to memory of 4564	4932	wmprk64.exe	wmprk64.exe
PID 4932 wrote to memory of 4564	4932	wmprk64.exe	wmprk64.exe
PID 4932 wrote to memory of 4564	4932	wmprk64.exe	wmprk64.exe
PID 4932 wrote to memory of 4564	4932	wmprk64.exe	wmprk64.exe
PID 4932 wrote to memory of 4564	4932	wmprk64.exe	wmprk64.exe
PID 4564 wrote to memory of 3044	4564	wmprk64.exe	Explorer.EXE
PID 4564 wrote to memory of 3044	4564	wmprk64.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3044

C:\Users\Admin\AppData\Local\Temp\6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
"C:\Users\Admin\AppData\Local\Temp\6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4260

C:\Users\Admin\AppData\Local\Temp\6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.exe
"C:\Users\Admin\AppData\Local\Temp\6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667.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:1764

C:\Windows\SysWOW64\wmprk64.exe
"C:\Windows\SysWOW64\wmprk64.exe" C:\Users\Admin\AppData\Local\Temp\6DDCDE~1.EXE
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4932

C:\Windows\SysWOW64\wmprk64.exe
"C:\Windows\SysWOW64\wmprk64.exe" C:\Users\Admin\AppData\Local\Temp\6DDCDE~1.EXE
5⤵
- Modifies firewall policy service
- Executes dropped EXE
- Sets file execution options in registry
- Sets service image path in registry
- 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:4564

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

3

T1060

Privilege Escalation

Defense Evasion

Modify Registry

4

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\wmprk64.exe
Filesize
260KB

MD5
939d220eb5f9d3b8c5d35a975e740127

SHA1
c23a5f9a876bfe496b361606759ac9f1aa602638

SHA256
6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667

SHA512
3b17b80a55571313d68fcb97668482d8c867c453a2211c00736bf321fad27bac8e8906e5284e5419d6e5ccc00bda9635c45012398bafa970f7deff8bb03e5ce7

Download Submit
C:\Windows\SysWOW64\wmprk64.exe
Filesize
260KB

MD5
939d220eb5f9d3b8c5d35a975e740127

SHA1
c23a5f9a876bfe496b361606759ac9f1aa602638

SHA256
6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667

SHA512
3b17b80a55571313d68fcb97668482d8c867c453a2211c00736bf321fad27bac8e8906e5284e5419d6e5ccc00bda9635c45012398bafa970f7deff8bb03e5ce7

Download Submit
C:\Windows\SysWOW64\wmprk64.exe
Filesize
260KB

MD5
939d220eb5f9d3b8c5d35a975e740127

SHA1
c23a5f9a876bfe496b361606759ac9f1aa602638

SHA256
6ddcdecc111152874195e0f43fbd533672361077b6e3365c44efa4ca57390667

SHA512
3b17b80a55571313d68fcb97668482d8c867c453a2211c00736bf321fad27bac8e8906e5284e5419d6e5ccc00bda9635c45012398bafa970f7deff8bb03e5ce7

Download Submit
memory/1764-136-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1764-137-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1764-138-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1764-132-0x0000000000000000-mapping.dmp

Download
memory/1764-135-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1764-133-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1764-149-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4564-142-0x0000000000000000-mapping.dmp

Download
memory/4564-148-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4564-150-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4932-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads