Malware Analysis Report

2025-03-14 22:29

Sample ID 240407-xybjksbh9w
Target 203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461
SHA256 203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461
Tags
persistence
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461

Threat Level: Known bad

The file 203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461 was found to be: Known bad.

Malicious Activity Summary

persistence

UPX dump on OEP (original entry point)

UPX dump on OEP (original entry point)

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 19:15

Signatures

UPX dump on OEP (original entry point)

Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 19:15

Reported

2024-04-07 19:17

Platform

win10v2004-20240226-en

Max time kernel

26s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe"

Signatures

UPX dump on OEP (original entry point)

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\WDM = "MSWDM.EXE" C:\WINDOWS\MSWDM.EXE N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WDM = "MSWDM.EXE" C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunServices\WDM = "MSWDM.EXE" C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WDM = "MSWDM.EXE" C:\WINDOWS\MSWDM.EXE N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\WINDOWS\MSWDM.EXE C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe N/A
File opened for modification C:\Windows\dev595B.tmp C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe N/A
File opened for modification C:\Windows\dev595B.tmp C:\WINDOWS\MSWDM.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\WINDOWS\MSWDM.EXE N/A
N/A N/A C:\WINDOWS\MSWDM.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3192 wrote to memory of 1148 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 3192 wrote to memory of 1148 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 3192 wrote to memory of 1148 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 3192 wrote to memory of 5076 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 3192 wrote to memory of 5076 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 3192 wrote to memory of 5076 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 5076 wrote to memory of 4680 N/A C:\WINDOWS\MSWDM.EXE C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE
PID 5076 wrote to memory of 4680 N/A C:\WINDOWS\MSWDM.EXE C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE
PID 5076 wrote to memory of 4680 N/A C:\WINDOWS\MSWDM.EXE C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE
PID 5076 wrote to memory of 3572 N/A C:\WINDOWS\MSWDM.EXE C:\WINDOWS\MSWDM.EXE
PID 5076 wrote to memory of 3572 N/A C:\WINDOWS\MSWDM.EXE C:\WINDOWS\MSWDM.EXE
PID 5076 wrote to memory of 3572 N/A C:\WINDOWS\MSWDM.EXE C:\WINDOWS\MSWDM.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe

"C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe"

C:\WINDOWS\MSWDM.EXE

"C:\WINDOWS\MSWDM.EXE"

C:\WINDOWS\MSWDM.EXE

-r!C:\Windows\dev595B.tmp!C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe! !

C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE

C:\WINDOWS\MSWDM.EXE

-e!C:\Windows\dev595B.tmp!C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE!

Network

Country Destination Domain Proto
N/A 10.127.255.255:78 udp
N/A 10.255.255.255:78 udp
N/A 10.127.0.255:78 udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 255.0.127.10.in-addr.arpa udp
US 8.8.8.8:53 255.255.255.10.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 130.118.77.104.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 122.10.44.20.in-addr.arpa udp

Files

memory/3192-0-0x0000000000400000-0x000000000041B000-memory.dmp

memory/3192-7-0x0000000000400000-0x000000000041B000-memory.dmp

C:\Windows\MSWDM.EXE

MD5 bbbb0cd00ecee4398cfbb727e05fc129
SHA1 f5e881fe23eed99368e64f59bcff02ac803ec8ea
SHA256 13c373c306bf19c9926d4d44d2f6d1789938436821ad2a0de9b58ddb86ef6b15
SHA512 cfd58804e453d022a62715fa236a974ec693296dc634821c9051c77467b35d83e3d89d178a2c1cf37d21f7e6a6a147ff51b82a475ed1d3d5403ca165dc6bcb8b

memory/1148-10-0x0000000000400000-0x000000000041B000-memory.dmp

C:\Windows\dev595B.tmp

MD5 96f7cb9f7481a279bd4bc0681a3b993e
SHA1 deaedb5becc6c0bd263d7cf81e0909b912a1afd4
SHA256 d2893c55259772b554cb887d3e2e1f9c67f5cd5abac2ab9f4720dec507cdd290
SHA512 694d2da36df04db25cc5972f7cc180b77e1cb0c3b5be8b69fe7e2d4e59555efb8aa7e50b1475ad5196ca638dabde2c796ae6faeb4a31f38166838cd1cc028149

memory/5076-11-0x0000000000400000-0x000000000041B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE

MD5 9f61ce6e54eb179188e04a6424985b19
SHA1 bfac0fa2c910d2b6445799cad5b8a23b75457de6
SHA256 111860156b395a3db9e9968c8cd3a5d9f76d92ef38f164bae6d855953589fc3b
SHA512 00e2c9c4383a32c69f550946ae979fec8b3f5737f669e65c508730e8c9bd0ae16cda251cb4d60623232062722e1ab5f3155b65b802bc7676b488794cbffdb4bb

memory/3572-19-0x0000000000400000-0x000000000041B000-memory.dmp

memory/5076-21-0x0000000000400000-0x000000000041B000-memory.dmp

memory/1148-22-0x0000000000400000-0x000000000041B000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 19:15

Reported

2024-04-07 19:17

Platform

win7-20240221-en

Max time kernel

13s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe"

Signatures

UPX dump on OEP (original entry point)

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\WINDOWS\MSWDM.EXE N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunServices\WDM = "MSWDM.EXE" C:\WINDOWS\MSWDM.EXE N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WDM = "MSWDM.EXE" C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunServices\WDM = "MSWDM.EXE" C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WDM = "MSWDM.EXE" C:\WINDOWS\MSWDM.EXE N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\WINDOWS\MSWDM.EXE C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe N/A
File opened for modification C:\Windows\dev84E9.tmp C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe N/A
File opened for modification C:\Windows\dev84E9.tmp C:\WINDOWS\MSWDM.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\WINDOWS\MSWDM.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1500 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 1500 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 1500 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 1500 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 1500 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 1500 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 1500 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 1500 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe C:\WINDOWS\MSWDM.EXE
PID 1396 wrote to memory of 2620 N/A C:\WINDOWS\MSWDM.EXE C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE
PID 1396 wrote to memory of 2620 N/A C:\WINDOWS\MSWDM.EXE C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE
PID 1396 wrote to memory of 2620 N/A C:\WINDOWS\MSWDM.EXE C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE
PID 1396 wrote to memory of 2620 N/A C:\WINDOWS\MSWDM.EXE C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE
PID 1396 wrote to memory of 2620 N/A C:\WINDOWS\MSWDM.EXE C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE
PID 1396 wrote to memory of 2620 N/A C:\WINDOWS\MSWDM.EXE C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE
PID 1396 wrote to memory of 2620 N/A C:\WINDOWS\MSWDM.EXE C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE
PID 1396 wrote to memory of 2552 N/A C:\WINDOWS\MSWDM.EXE C:\WINDOWS\MSWDM.EXE
PID 1396 wrote to memory of 2552 N/A C:\WINDOWS\MSWDM.EXE C:\WINDOWS\MSWDM.EXE
PID 1396 wrote to memory of 2552 N/A C:\WINDOWS\MSWDM.EXE C:\WINDOWS\MSWDM.EXE
PID 1396 wrote to memory of 2552 N/A C:\WINDOWS\MSWDM.EXE C:\WINDOWS\MSWDM.EXE

Processes

C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe

"C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe"

C:\WINDOWS\MSWDM.EXE

"C:\WINDOWS\MSWDM.EXE"

C:\WINDOWS\MSWDM.EXE

-r!C:\Windows\dev84E9.tmp!C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe! !

C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE

C:\WINDOWS\MSWDM.EXE

-e!C:\Windows\dev84E9.tmp!C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE!

Network

Country Destination Domain Proto
N/A 10.127.255.255:78 udp
N/A 10.255.255.255:78 udp
N/A 10.127.0.255:78 udp

Files

memory/1500-0-0x0000000000400000-0x000000000041B000-memory.dmp

C:\Windows\MSWDM.EXE

MD5 bbbb0cd00ecee4398cfbb727e05fc129
SHA1 f5e881fe23eed99368e64f59bcff02ac803ec8ea
SHA256 13c373c306bf19c9926d4d44d2f6d1789938436821ad2a0de9b58ddb86ef6b15
SHA512 cfd58804e453d022a62715fa236a974ec693296dc634821c9051c77467b35d83e3d89d178a2c1cf37d21f7e6a6a147ff51b82a475ed1d3d5403ca165dc6bcb8b

memory/1396-18-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2748-17-0x0000000000400000-0x000000000041B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\203e1c7ef08bb81f809868185bce023c70f634f6365da8f583a83707661b0461.exe

MD5 96f7cb9f7481a279bd4bc0681a3b993e
SHA1 deaedb5becc6c0bd263d7cf81e0909b912a1afd4
SHA256 d2893c55259772b554cb887d3e2e1f9c67f5cd5abac2ab9f4720dec507cdd290
SHA512 694d2da36df04db25cc5972f7cc180b77e1cb0c3b5be8b69fe7e2d4e59555efb8aa7e50b1475ad5196ca638dabde2c796ae6faeb4a31f38166838cd1cc028149

memory/1500-13-0x0000000000290000-0x00000000002AB000-memory.dmp

memory/1500-12-0x0000000000400000-0x000000000041B000-memory.dmp

memory/1396-24-0x0000000000270000-0x000000000028B000-memory.dmp

memory/2552-30-0x0000000000400000-0x000000000041B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\203E1C7EF08BB81F809868185BCE023C70F634F6365DA8F583A83707661B0461.EXE

MD5 cab609d73df5554b14c3093c9c846f7d
SHA1 db93263ea5601c246bac4b73fda6d82c0199a66a
SHA256 170315da90c07e2027fe91ac87e5bf112e55a1988882af5398847d64f292cfa4
SHA512 a8b3a9d691656f702ed2f5c22a0a7c5e5cede3a382d4c57a83c275b447be29a5517090343c7d8d379a3d0cdad533deb06356b87aa3e0e470c47c33fe24099b7c

memory/2552-26-0x0000000000400000-0x000000000041B000-memory.dmp

memory/1396-32-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2748-33-0x0000000000400000-0x000000000041B000-memory.dmp

memory/1500-36-0x0000000000290000-0x00000000002AB000-memory.dmp