metasploit | 9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4

General

Target

9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
Size

253KB
MD5

ba6ae46526460efae73f8381a1b6ce7b
SHA1

d3b871a018ffa4bc7fc4f4ef95beb8ddd987ea78
SHA256

9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4
SHA512

ee4323b2faf93ab1aabf8b87b413d9b2a08a80bf277af7fc737d0880d419a148bd1e36471043846d53bdda44e8014ed308d157aad22b78cbdb9212469d8402b6
SSDEEP

3072:mbCGx5WySeR9vfG+pXBc0TZlpCGKGPJhD6QkkrR9vjKNL1lk+m0nbqKE:Epx5LSeR9vlpxxP3D6HkrTgLQ+m0nbq9

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 4 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkb32.exe = "C:\\Windows\\SysWOW64\\wmpkb32.exe:*:Enabled:Windows Recovery Service"	wmpkb32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	wmpkb32.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Windows\SysWOW64\wmpkb32.exe = "C:\\Windows\\SysWOW64\\wmpkb32.exe:*:Enabled:Windows Recovery Service"	wmpkb32.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List	wmpkb32.exe

Executes dropped EXE 2 IoCs

pid	Process
1076	wmpkb32.exe
792	wmpkb32.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1292-55-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1292-57-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1292-58-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1292-62-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1292-63-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1292-64-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1292-65-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1292-82-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/792-83-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/792-84-0x0000000000400000-0x0000000000451000-memory.dmp	upx

Deletes itself 1 IoCs

pid	Process
792	wmpkb32.exe

Loads dropped DLL 2 IoCs

pid	Process
1292	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
1292	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.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	wmpkb32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Recovery Service = "C:\\Windows\\SysWOW64\\wmpkb32.exe"	wmpkb32.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	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	wmpkb32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	wmpkb32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
File opened for modification	C:\Windows\SysWOW64\wmpkb32.exe	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
File created	C:\Windows\SysWOW64\wmpkb32.exe	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
File opened for modification	C:\Windows\SysWOW64\	wmpkb32.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1416 set thread context of 1292	1416	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	26
PID 1076 set thread context of 792	1076	wmpkb32.exe	28

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1292	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
1292	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
792	wmpkb32.exe
792	wmpkb32.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1416 wrote to memory of 1292	1416	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	26
PID 1416 wrote to memory of 1292	1416	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	26
PID 1416 wrote to memory of 1292	1416	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	26
PID 1416 wrote to memory of 1292	1416	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	26
PID 1416 wrote to memory of 1292	1416	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	26
PID 1416 wrote to memory of 1292	1416	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	26
PID 1416 wrote to memory of 1292	1416	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	26
PID 1292 wrote to memory of 1076	1292	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	27
PID 1292 wrote to memory of 1076	1292	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	27
PID 1292 wrote to memory of 1076	1292	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	27
PID 1292 wrote to memory of 1076	1292	9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe	27
PID 1076 wrote to memory of 792	1076	wmpkb32.exe	28
PID 1076 wrote to memory of 792	1076	wmpkb32.exe	28
PID 1076 wrote to memory of 792	1076	wmpkb32.exe	28
PID 1076 wrote to memory of 792	1076	wmpkb32.exe	28
PID 1076 wrote to memory of 792	1076	wmpkb32.exe	28
PID 1076 wrote to memory of 792	1076	wmpkb32.exe	28
PID 1076 wrote to memory of 792	1076	wmpkb32.exe	28
PID 792 wrote to memory of 1248	792	wmpkb32.exe	13
PID 792 wrote to memory of 1248	792	wmpkb32.exe	13

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1248
- C:\Users\Admin\AppData\Local\Temp\9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
  "C:\Users\Admin\AppData\Local\Temp\9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1416
- - C:\Users\Admin\AppData\Local\Temp\9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe
    "C:\Users\Admin\AppData\Local\Temp\9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4.exe"
    3⤵
    - Loads dropped DLL
    - Maps connected drives based on registry
    - Drops file in System32 directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1292
  - - C:\Windows\SysWOW64\wmpkb32.exe
      "C:\Windows\SysWOW64\wmpkb32.exe" C:\Users\Admin\AppData\Local\Temp\9DE03C~1.EXE
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:1076
    - - C:\Windows\SysWOW64\wmpkb32.exe
        
        "C:\Windows\SysWOW64\wmpkb32.exe" C:\Users\Admin\AppData\Local\Temp\9DE03C~1.EXE
        5⤵
        Modifies firewall policy service
        Executes dropped EXE
        Deletes itself
        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:792

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

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\wmpkb32.exe

Filesize
253KB

MD5
ba6ae46526460efae73f8381a1b6ce7b

SHA1
d3b871a018ffa4bc7fc4f4ef95beb8ddd987ea78

SHA256
9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4

SHA512
ee4323b2faf93ab1aabf8b87b413d9b2a08a80bf277af7fc737d0880d419a148bd1e36471043846d53bdda44e8014ed308d157aad22b78cbdb9212469d8402b6

Download Submit
C:\Windows\SysWOW64\wmpkb32.exe

Filesize
253KB

MD5
ba6ae46526460efae73f8381a1b6ce7b

SHA1
d3b871a018ffa4bc7fc4f4ef95beb8ddd987ea78

SHA256
9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4

SHA512
ee4323b2faf93ab1aabf8b87b413d9b2a08a80bf277af7fc737d0880d419a148bd1e36471043846d53bdda44e8014ed308d157aad22b78cbdb9212469d8402b6

Download Submit
C:\Windows\SysWOW64\wmpkb32.exe

Filesize
253KB

MD5
ba6ae46526460efae73f8381a1b6ce7b

SHA1
d3b871a018ffa4bc7fc4f4ef95beb8ddd987ea78

SHA256
9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4

SHA512
ee4323b2faf93ab1aabf8b87b413d9b2a08a80bf277af7fc737d0880d419a148bd1e36471043846d53bdda44e8014ed308d157aad22b78cbdb9212469d8402b6

Download Submit
\Windows\SysWOW64\wmpkb32.exe

Filesize
253KB

MD5
ba6ae46526460efae73f8381a1b6ce7b

SHA1
d3b871a018ffa4bc7fc4f4ef95beb8ddd987ea78

SHA256
9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4

SHA512
ee4323b2faf93ab1aabf8b87b413d9b2a08a80bf277af7fc737d0880d419a148bd1e36471043846d53bdda44e8014ed308d157aad22b78cbdb9212469d8402b6

Download Submit
\Windows\SysWOW64\wmpkb32.exe

Filesize
253KB

MD5
ba6ae46526460efae73f8381a1b6ce7b

SHA1
d3b871a018ffa4bc7fc4f4ef95beb8ddd987ea78

SHA256
9de03c3f10a1b677e351d4411795bea0351a4680bbfb8c40b738908351fd0fd4

SHA512
ee4323b2faf93ab1aabf8b87b413d9b2a08a80bf277af7fc737d0880d419a148bd1e36471043846d53bdda44e8014ed308d157aad22b78cbdb9212469d8402b6

Download Submit
memory/792-84-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/792-83-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1248-85-0x0000000002A70000-0x0000000002A8E000-memory.dmp

Filesize
120KB

Download
memory/1292-58-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1292-61-0x0000000075E81000-0x0000000075E83000-memory.dmp

Filesize
8KB

Download
memory/1292-62-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1292-57-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1292-54-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1292-55-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1292-82-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1292-65-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1292-64-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1292-63-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads