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
behavioral2/memory/2596-1-0x0000000000400000-0x000000000041B000-memory.dmp	UPX
behavioral2/files/0x00070000000232a4-5.dat	UPX
behavioral2/memory/2596-6-0x0000000000400000-0x000000000041B000-memory.dmp	UPX
behavioral2/memory/1480-11-0x0000000000400000-0x000000000041B000-memory.dmp	UPX
behavioral2/memory/1284-10-0x0000000000400000-0x000000000041B000-memory.dmp	UPX
behavioral2/files/0x0007000000023432-18.dat	UPX
behavioral2/memory/4420-19-0x0000000000400000-0x000000000041B000-memory.dmp	UPX
behavioral2/memory/1480-23-0x0000000000400000-0x000000000041B000-memory.dmp	UPX
behavioral2/memory/1284-24-0x0000000000400000-0x000000000041B000-memory.dmp	UPX

Executes dropped EXE 4 IoCs

pid	Process
1284	MSWDM.EXE
1480	MSWDM.EXE
2364	3B55C8B4875DB97F10E6A6F85446EE1988054BA8A035231619A3869D73C11AB1.EXE
4420	MSWDM.EXE

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 3 IoCs

description	ioc	Process
File created	C:\WINDOWS\MSWDM.EXE	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe
File opened for modification	C:\Windows\dev3C9B.tmp	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe
File opened for modification	C:\Windows\dev3C9B.tmp	MSWDM.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1480	MSWDM.EXE
1480	MSWDM.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2596 wrote to memory of 1284	2596	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	82
PID 2596 wrote to memory of 1284	2596	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	82
PID 2596 wrote to memory of 1284	2596	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	82
PID 2596 wrote to memory of 1480	2596	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	83
PID 2596 wrote to memory of 1480	2596	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	83
PID 2596 wrote to memory of 1480	2596	3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe	83
PID 1480 wrote to memory of 2364	1480	MSWDM.EXE	84
PID 1480 wrote to memory of 2364	1480	MSWDM.EXE	84
PID 1480 wrote to memory of 4420	1480	MSWDM.EXE	86
PID 1480 wrote to memory of 4420	1480	MSWDM.EXE	86
PID 1480 wrote to memory of 4420	1480	MSWDM.EXE	86

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:2596
- C:\WINDOWS\MSWDM.EXE
  "C:\WINDOWS\MSWDM.EXE"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  PID:1284
- C:\WINDOWS\MSWDM.EXE
  -r!C:\Windows\dev3C9B.tmp!C:\Users\Admin\AppData\Local\Temp\3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe! !
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1480
- - C:\Users\Admin\AppData\Local\Temp\3B55C8B4875DB97F10E6A6F85446EE1988054BA8A035231619A3869D73C11AB1.EXE
    3⤵
    - Executes dropped EXE
    PID:2364
- - C:\WINDOWS\MSWDM.EXE
    -e!C:\Windows\dev3C9B.tmp!C:\Users\Admin\AppData\Local\Temp\3B55C8B4875DB97F10E6A6F85446EE1988054BA8A035231619A3869D73C11AB1.EXE!
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:4420

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:\Users\Admin\AppData\Local\Temp\3b55c8b4875db97f10e6a6f85446ee1988054ba8a035231619a3869d73c11ab1.exe

Filesize
538KB

MD5
e6b613cb5a39fcad53f7968b13057cba

SHA1
1c237de9947ac22dfa04abd35680b927cc2f662b

SHA256
cda352a9c57ebaeb71991bfd57acc62e16140c317e0886614c5be6bcdd122c2d

SHA512
fcff1fcea8b44da0f02f7ac07f132a83d2aaabf70a6a4a95480cb6ae69bcdc18de279603b1a28765dcb59711016b3190ae351ba95c499357f6dceb61ac8942cc

Download Submit
C:\Windows\MSWDM.EXE

Filesize
80KB

MD5
68e2b3feafd08549d8065f0d7bdf7428

SHA1
33f40e4b8d55ab73d5697f9a89b96451fd684ec9

SHA256
0034a4b9e1272561a35b942a07d3cf5b6203f2a43b526f7a3f0bb9597b70cb56

SHA512
7c6687f89338b237687c02927df93068e66d684a29ed7726f12fa083f31b9359e63771566e8279d4242e5357e9036d2bd8ecffb839ad6d09270d995e4665935f

Download Submit
C:\Windows\dev3C9B.tmp

Filesize
458KB

MD5
619f7135621b50fd1900ff24aade1524

SHA1
6c7ea8bbd435163ae3945cbef30ef6b9872a4591

SHA256
344f076bb1211cb02eca9e5ed2c0ce59bcf74ccbc749ec611538fa14ecb9aad2

SHA512
2c7293c084d09bc2e3ae2d066dd7b331c810d9e2eeca8b236a8e87fdeb18e877b948747d3491fcaff245816507685250bd35f984c67a43b29b0ae31ecb2bd628

Download Submit
memory/1284-10-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1284-24-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1480-11-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1480-23-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2596-1-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2596-6-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4420-19-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads