3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1

General

Target

3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe
Size

538KB
MD5

90aaa10a02176c863eb287bef17bf3b9
SHA1

831883616deb50f70f177f6569d976bc543b393b
SHA256

3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1
SHA512

0eebae9937b6a77dfe85488cf494c5a21f8c2f85a876ef59cad645bd3836d317d646cd902c0895cf15de647832a557ce2e76a0521891d3741030dd17f012313e
SSDEEP

12288:wlbq+h1gL5pRTcAkS/3hzN8qE43fm78V6:Wbq+w5jcAkSYqyE6

Score

9^/10

Malware Config

Signatures

UPX dump on OEP (original entry point) 9 IoCs

resource	yara_rule
behavioral1/memory/2836-1-0x0000000000400000-0x000000000041B000-memory.dmp	UPX
behavioral1/files/0x000b000000015d59-5.dat	UPX
behavioral1/memory/2572-25-0x0000000000400000-0x000000000041B000-memory.dmp	UPX
behavioral1/memory/2520-19-0x0000000000400000-0x000000000041B000-memory.dmp	UPX
behavioral1/memory/2096-17-0x0000000000400000-0x000000000041B000-memory.dmp	UPX
behavioral1/memory/2520-30-0x0000000000400000-0x000000000041B000-memory.dmp	UPX
behavioral1/memory/2572-27-0x0000000000400000-0x000000000041B000-memory.dmp	UPX
behavioral1/memory/2836-12-0x0000000000400000-0x000000000041B000-memory.dmp	UPX
behavioral1/memory/2096-31-0x0000000000400000-0x000000000041B000-memory.dmp	UPX

Executes dropped EXE 4 IoCs

pid	Process
2096	MSWDM.EXE
2520	MSWDM.EXE
2552	3B55C8B4875DB97F10E6A6F85446EE1988054BA8A035231619A3869D73C11AB1.EXE
2572	MSWDM.EXE

Loads dropped DLL 2 IoCs

pid	Process
2520	MSWDM.EXE
2936	Process not Found

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WDM = "MSWDM.EXE"	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunServices\WDM = "MSWDM.EXE"	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\WDM = "MSWDM.EXE"	MSWDM.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunServices\WDM = "MSWDM.EXE"	MSWDM.EXE

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\MSWDM.EXE	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe
File opened for modification	C:\Windows\dev2829.tmp	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2520	MSWDM.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2836 wrote to memory of 2096	2836	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	28
PID 2836 wrote to memory of 2096	2836	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	28
PID 2836 wrote to memory of 2096	2836	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	28
PID 2836 wrote to memory of 2096	2836	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	28
PID 2836 wrote to memory of 2520	2836	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	29
PID 2836 wrote to memory of 2520	2836	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	29
PID 2836 wrote to memory of 2520	2836	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	29
PID 2836 wrote to memory of 2520	2836	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	29
PID 2520 wrote to memory of 2552	2520	MSWDM.EXE	30
PID 2520 wrote to memory of 2552	2520	MSWDM.EXE	30
PID 2520 wrote to memory of 2552	2520	MSWDM.EXE	30
PID 2520 wrote to memory of 2552	2520	MSWDM.EXE	30
PID 2520 wrote to memory of 2572	2520	MSWDM.EXE	32
PID 2520 wrote to memory of 2572	2520	MSWDM.EXE	32
PID 2520 wrote to memory of 2572	2520	MSWDM.EXE	32
PID 2520 wrote to memory of 2572	2520	MSWDM.EXE	32

C:\Users\Admin\AppData\Local\Temp\3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe
"C:\Users\Admin\AppData\Local\Temp\3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2836
- C:\WINDOWS\MSWDM.EXE
  "C:\WINDOWS\MSWDM.EXE"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:2096
- C:\WINDOWS\MSWDM.EXE
  -r!C:\Windows\dev2829.tmp!C:\Users\Admin\AppData\Local\Temp\3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe! !
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2520
- - C:\Users\Admin\AppData\Local\Temp\3B55C8B4875DB97F10E6A6F85446EE1988054BA8A035231619A3869D73C11AB1.EXE
    3⤵
    - Executes dropped EXE
    PID:2552
- - C:\WINDOWS\MSWDM.EXE
    -e!C:\Windows\dev2829.tmp!C:\Users\Admin\AppData\Local\Temp\3B55C8B4875DB97F10E6A6F85446EE1988054BA8A035231619A3869D73C11AB1.EXE!
    3⤵
    - Executes dropped EXE
    PID:2572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\MSWDM.EXE

Filesize
80KB

MD5
68e2b3feafd08549d8065f0d7bdf7428

SHA1
33f40e4b8d55ab73d5697f9a89b96451fd684ec9

SHA256
0034a4b9e1272561a35b942a07d3cf5b6203f2a43b526f7a3f0bb9597b70cb56

SHA512
7c6687f89338b237687c02927df93068e66d684a29ed7726f12fa083f31b9359e63771566e8279d4242e5357e9036d2bd8ecffb839ad6d09270d995e4665935f

Download Submit
\Users\Admin\AppData\Local\Temp\3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe

Filesize
458KB

MD5
619f7135621b50fd1900ff24aade1524

SHA1
6c7ea8bbd435163ae3945cbef30ef6b9872a4591

SHA256
344f076bb1211cb02eca9e5ed2c0ce59bcf74ccbc749ec611538fa14ecb9aad2

SHA512
2c7293c084d09bc2e3ae2d066dd7b331c810d9e2eeca8b236a8e87fdeb18e877b948747d3491fcaff245816507685250bd35f984c67a43b29b0ae31ecb2bd628

Download Submit
memory/2096-17-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2096-31-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2520-19-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2520-30-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2572-25-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2572-27-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2836-1-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2836-12-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads