46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa

General

Target

46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
Size

81KB
MD5

8878ce3351c36f5dd0786055604632d4
SHA1

0c69b258052a8b094b9dc8483dfbad07a84f46e1
SHA256

46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa
SHA512

39e4c65d082441fbd04d198584c01d86937665ec03c74cf77b26ef2f6b26b7cf98da1b0abbb5e2889ce7f4465f866c2ce9cef0f07956f90c8d577be72fb34d7c
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOtC:RshfSWHHNvoLqNwDDGw02eQmh0HjWOtC

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2904	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.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
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\¢«.exe	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
File created	C:\Windows\system\rundll32.exe	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718090987"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	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	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718090987"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2904	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
2904	rundll32.exe
2904	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2504 wrote to memory of 2904	2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe	28
PID 2504 wrote to memory of 2904	2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe	28
PID 2504 wrote to memory of 2904	2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe	28
PID 2504 wrote to memory of 2904	2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe	28
PID 2504 wrote to memory of 2904	2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe	28
PID 2504 wrote to memory of 2904	2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe	28
PID 2504 wrote to memory of 2904	2504	46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe	28

C:\Users\Admin\AppData\Local\Temp\46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.exe
"C:\Users\Admin\AppData\Local\Temp\46f491955ec4a0c07720051ee5d706d834fb77a3d2273636010f7ac12439d4aa.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:2504
- 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:2904

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
79KB

MD5
e4ba69bb106150951a4d544bf06de7f2

SHA1
6fd1276c8d1d08cdd0c9f84ab0ee4194119dfffd

SHA256
ebc56f58465da3c268bfe1b856a6640ae07f6eb2f52464a34782b66e04c893f8

SHA512
551042f10aeddeab30eebbb86a3459258deb863b27354db2a31906d00cbfa3710a18a1dcf9f5aba038c1ed22d7455c819c448ac05e8c939a264a01eda17a85d3

Download Submit
\Windows\system\rundll32.exe

Filesize
81KB

MD5
8a234194e0372b2137c1b15a50646457

SHA1
6243fd676f015c3cd1b3638c3a2edd69b543cc4f

SHA256
6885e9d09398872c8b41dff01e49a09967a88e819723c0429f293d262df58c72

SHA512
d38c81039a51e00de19afb6181d3fa1a05ff996a6ce1740eefa1b8491b67c0b86436d0bb46fa835a795e716546ac6030e58ee8d0c4849d5ffe0eb8e04016fc3b

Download Submit
memory/2504-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2504-18-0x0000000000250000-0x0000000000266000-memory.dmp

Filesize
88KB

Download
memory/2504-12-0x0000000000250000-0x0000000000266000-memory.dmp

Filesize
88KB

Download
memory/2504-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2504-22-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/2904-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads