a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178

General

Target

a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
Size

76KB
MD5

a04e52792fe6d1e79b259c547dc0cfcd
SHA1

452ace5309d1382889d4ad31fda69a97b3932d53
SHA256

a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178
SHA512

7f84a2bc6e9be671b4dcdd2cdb541858e4e8780c3ac20320565e7443188ca75264136352ac4854a3b8cc8dbe5bd0c850c34d5f554c76518461e6484e311c8f01
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWOxf:RshfSWHHNvoLqNwDDGw02eQmh0HjWOxf

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2364	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.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\" %*"	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.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	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
File created	C:\Windows\SysWOW64\¢«.exe	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
File created	C:\Windows\system\rundll32.exe	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1695356193"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1695356193"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2364	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
2364	rundll32.exe
2364	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2364	2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe	28
PID 2208 wrote to memory of 2364	2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe	28
PID 2208 wrote to memory of 2364	2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe	28
PID 2208 wrote to memory of 2364	2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe	28
PID 2208 wrote to memory of 2364	2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe	28
PID 2208 wrote to memory of 2364	2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe	28
PID 2208 wrote to memory of 2364	2208	a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe	28

C:\Users\Admin\AppData\Local\Temp\a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.exe
"C:\Users\Admin\AppData\Local\Temp\a05c65af47148b518d0b9fabf5fa5015e855acc00246ccb37feeedf54447b178.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:2208
- 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:2364

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
76KB

MD5
ec9dd1ef58d7d1aa282874dd9a55d414

SHA1
30b8307760afe2014a87caeae99e4cc2ea5ec453

SHA256
5e73d2456bfab89025db051048b65e3744e7209b5c7dcda532f91a3e7c93c963

SHA512
15244871b9027e39bc2b8fcae05cede6a83dd0c9c39a283fdd88ae06aa2b39da4732e88c8e864474f362b001036879fd19f5aae54e0da244c8061d5358f44f72

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

Filesize
83KB

MD5
da3fd7a0bc1d8c2de1d59f5e3c78e9b6

SHA1
3fe5c5f0a61119f18f5f574db6becaecc631d677

SHA256
fbda0734cbda388fa769a80430e5b89ff379f908fcc51efb459910177da14987

SHA512
58bf15989f2b32e50084b5bbc2e1ef3ccbfe0030085082a6f6f55255ca12bdc8ec3a186d134df81821a61106150869e73be924725ecdd33a0ad1f67b56da033a

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

Filesize
83KB

MD5
da3fd7a0bc1d8c2de1d59f5e3c78e9b6

SHA1
3fe5c5f0a61119f18f5f574db6becaecc631d677

SHA256
fbda0734cbda388fa769a80430e5b89ff379f908fcc51efb459910177da14987

SHA512
58bf15989f2b32e50084b5bbc2e1ef3ccbfe0030085082a6f6f55255ca12bdc8ec3a186d134df81821a61106150869e73be924725ecdd33a0ad1f67b56da033a

Download Submit
\Windows\system\rundll32.exe

Filesize
83KB

MD5
da3fd7a0bc1d8c2de1d59f5e3c78e9b6

SHA1
3fe5c5f0a61119f18f5f574db6becaecc631d677

SHA256
fbda0734cbda388fa769a80430e5b89ff379f908fcc51efb459910177da14987

SHA512
58bf15989f2b32e50084b5bbc2e1ef3ccbfe0030085082a6f6f55255ca12bdc8ec3a186d134df81821a61106150869e73be924725ecdd33a0ad1f67b56da033a

Download Submit
\Windows\system\rundll32.exe

Filesize
83KB

MD5
da3fd7a0bc1d8c2de1d59f5e3c78e9b6

SHA1
3fe5c5f0a61119f18f5f574db6becaecc631d677

SHA256
fbda0734cbda388fa769a80430e5b89ff379f908fcc51efb459910177da14987

SHA512
58bf15989f2b32e50084b5bbc2e1ef3ccbfe0030085082a6f6f55255ca12bdc8ec3a186d134df81821a61106150869e73be924725ecdd33a0ad1f67b56da033a

Download Submit
memory/2208-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2208-12-0x0000000000270000-0x0000000000286000-memory.dmp

Filesize
88KB

Download
memory/2208-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2208-21-0x0000000000270000-0x0000000000272000-memory.dmp

Filesize
8KB

Download
memory/2364-18-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2364-22-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads