3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08

General

Target

3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
Size

76KB
MD5

24aa1892cc9a6e754550df904bdf242c
SHA1

63bc9ac9b0ec45517191a7b2e3ededf79907e429
SHA256

3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08
SHA512

8485fe49bf6d9e376a6093afe12d9e520ae87e5178e3129bc51d4d18cd3dda105ac864360f879aeb7100101e0c205a7044108c68982b97d0b9beeae48753c6e8
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOA:RshfSWHHNvoLqNwDDGw02eQmh0HjWOA

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3008	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\¢«.exe	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
File created	C:\Windows\system\rundll32.exe	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1693538583"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1693538583"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3008	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
3008	rundll32.exe
3008	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2164 wrote to memory of 3008	2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe	28
PID 2164 wrote to memory of 3008	2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe	28
PID 2164 wrote to memory of 3008	2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe	28
PID 2164 wrote to memory of 3008	2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe	28
PID 2164 wrote to memory of 3008	2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe	28
PID 2164 wrote to memory of 3008	2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe	28
PID 2164 wrote to memory of 3008	2164	3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe	28

C:\Users\Admin\AppData\Local\Temp\3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe
"C:\Users\Admin\AppData\Local\Temp\3134871e1d6aeab6d3a5ff5e23e9cde40f50b2f36ce1031403f4457958c1df08.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2164
- C:\Windows\system\rundll32.exe
  C:\Windows\system\rundll32.exe
  2⤵
  - Executes dropped EXE
  - Modifies system executable filetype association
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:3008

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
73KB

MD5
58b2e66626b1b479710f5d885ce127cb

SHA1
22ba66d054beb7c7e9359ea8b326a85ad2a81748

SHA256
53971276fd83c5ab85e0d4c258c8951ab005d20a8d198c59862a2478d856742c

SHA512
0cf33e3a69933db708f3cfb4a45a1c3e19b6840ead4a985f63f8e423cc18a4e8e11000f94cba90d9a81e2b51a2ac4f5d37d18299c49058bd209a1ae868fe6a45

Download Submit
C:\Windows\system\rundll32.exe

Filesize
74KB

MD5
e77bcda4d78e37e95c8fc01a553faff6

SHA1
08a10794085afb779651ab7aaf24c09652794f14

SHA256
83354a632eb1611f53462711108b411fae8de4aa8b65cef3f0c72a76fec89241

SHA512
dcfc63e76224fbe21cc03e04bc3876021cd9216239ec5c26c3b7b1473181c7c449b9666323b251a3585d09e57111817d2729291f2d05f00a2a6d4da1579c8cf2

Download Submit
C:\Windows\system\rundll32.exe

Filesize
74KB

MD5
e77bcda4d78e37e95c8fc01a553faff6

SHA1
08a10794085afb779651ab7aaf24c09652794f14

SHA256
83354a632eb1611f53462711108b411fae8de4aa8b65cef3f0c72a76fec89241

SHA512
dcfc63e76224fbe21cc03e04bc3876021cd9216239ec5c26c3b7b1473181c7c449b9666323b251a3585d09e57111817d2729291f2d05f00a2a6d4da1579c8cf2

Download Submit
\Windows\system\rundll32.exe

Filesize
74KB

MD5
e77bcda4d78e37e95c8fc01a553faff6

SHA1
08a10794085afb779651ab7aaf24c09652794f14

SHA256
83354a632eb1611f53462711108b411fae8de4aa8b65cef3f0c72a76fec89241

SHA512
dcfc63e76224fbe21cc03e04bc3876021cd9216239ec5c26c3b7b1473181c7c449b9666323b251a3585d09e57111817d2729291f2d05f00a2a6d4da1579c8cf2

Download Submit
\Windows\system\rundll32.exe

Filesize
74KB

MD5
e77bcda4d78e37e95c8fc01a553faff6

SHA1
08a10794085afb779651ab7aaf24c09652794f14

SHA256
83354a632eb1611f53462711108b411fae8de4aa8b65cef3f0c72a76fec89241

SHA512
dcfc63e76224fbe21cc03e04bc3876021cd9216239ec5c26c3b7b1473181c7c449b9666323b251a3585d09e57111817d2729291f2d05f00a2a6d4da1579c8cf2

Download Submit
memory/2164-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2164-12-0x0000000000350000-0x0000000000366000-memory.dmp

Filesize
88KB

Download
memory/2164-20-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2164-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3008-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads