7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b

General

Target

7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
Size

83KB
MD5

e3d143bed103bcd5246e521c450e0297
SHA1

b2b1ce9f88194561f4b730d0b2f88b3909f50d50
SHA256

7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b
SHA512

ad1dd642d1ac60f2d64d784bf0cc379706556c33efdab296dccf292855ecebf84442ee585d8fc8fc52de6bad4815f572b2214d1216f3325c1e8d8968a1ae0317
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO6Z1lcFCFA0Ks:GhfxHNIreQm+HiJZ1lcFw

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1612	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.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	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.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 opened for modification	C:\Windows\SysWOW64\¢«.exe	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
File created	C:\Windows\SysWOW64\¢«.exe	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
File created	C:\Windows\system\rundll32.exe	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716229245"	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\txtfile\shell\open\command\ = "notepad¢¬ %1"	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.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\txtfile\shell\open\command	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716229245"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1612	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
1612	rundll32.exe
1612	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 1612	2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe	28
PID 2776 wrote to memory of 1612	2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe	28
PID 2776 wrote to memory of 1612	2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe	28
PID 2776 wrote to memory of 1612	2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe	28
PID 2776 wrote to memory of 1612	2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe	28
PID 2776 wrote to memory of 1612	2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe	28
PID 2776 wrote to memory of 1612	2776	7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe	28

C:\Users\Admin\AppData\Local\Temp\7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.exe
"C:\Users\Admin\AppData\Local\Temp\7f355f875be61add31fa8e88e9c82524e0138267ccb550640e4961d78747de5b.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:2776
- 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:1612

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

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
82KB

MD5
1609ba62c53b886ed890c62b79e54a9d

SHA1
0ea12112b7271c0d807934b410700239657ba13b

SHA256
4f09acace9c633d8b0f12bab191081b12896e947109ea610ef07d51fa10f964e

SHA512
58c6a3e55bc00029bad99425b14dcdd6aeb243704e8b64482b7ce64b8304d2898354e4e32f693a8e7225cfa3147d02ae080973c2bd73723b6436bb9cea027dd1

Download Submit
\Windows\system\rundll32.exe

Filesize
77KB

MD5
979d047d03099f874271afa90d691e37

SHA1
f3895acb8c2fe0bc9f68d7367b3743d2c25f5748

SHA256
1beb69c12c3762d7d580c4e2d1d9ac48c772566a4dba84197cbf4c2b5a6bea4a

SHA512
e57eef7a8d5be1772cedda63ea8c3e6f2f1cdae8a06fc04668c5af962860bd48744aff1b5b75887ffc3aa5b85d74ee5fa76a564c870b33de4516e6a9acbf968c

Download Submit
memory/1612-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2776-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2776-12-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2776-18-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2776-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2776-22-0x0000000000260000-0x0000000000262000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads