7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6

General

Target

7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
Size

77KB
MD5

e5e09aaf417dd82c76ad5f4834438e19
SHA1

7da9726ad6a0d7fc474f63d10c2d4b46c3129d43
SHA256

7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6
SHA512

6f089d889e14efd61dc7026ff8191a78c91d5ffd1d6e4497f017854df72dd2daca15a55dc86daf16152c45fe52f8d40f7fa8c3af9d44c0c3f78e94490ba77709
SSDEEP

768:agO5xRYi+SfSWHHNvvG5bnl/NqNwsKVDstHxYD0p1aXKynF0vQmYZS0HdJnfWO:RshfSWHHNvoLqNwDDGw02eQmh0HjWO

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1976	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.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\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
File created	C:\Windows\SysWOW64\¢«.exe	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
File opened for modification	C:\Windows\system\rundll32.exe	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718152420"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.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\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718152420"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1976	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
1976	rundll32.exe
1976	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 844 wrote to memory of 1976	844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe	28
PID 844 wrote to memory of 1976	844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe	28
PID 844 wrote to memory of 1976	844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe	28
PID 844 wrote to memory of 1976	844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe	28
PID 844 wrote to memory of 1976	844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe	28
PID 844 wrote to memory of 1976	844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe	28
PID 844 wrote to memory of 1976	844	7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe	28

C:\Users\Admin\AppData\Local\Temp\7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.exe
"C:\Users\Admin\AppData\Local\Temp\7ac9be8ec5b22a0be87e50810c6c88a3a96d58e952bd92000f68d90d4ab0d5e6.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:844
- 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:1976

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
064fed100ba8df711d3b41e6f2e31d49

SHA1
7bef28395ddeccfd64d8c9b3d709f927d938f374

SHA256
34617d1efe6f8d6f6b9200ee051ed139f8caa3b332e6dd5886acd68e5e2eb9f3

SHA512
68c62f1b95149759276b2fd622f005f51caeff0623603c1889750a914b81b3fe2dc48b28018f294c12b0edfb3157c537808d322aafad9462a715ab08ec6052d1

Download Submit
\Windows\system\rundll32.exe

Filesize
84KB

MD5
dfb94131ec2a4538b81ecff615e4bdc1

SHA1
86324fbf5deb52d05a79125541f5ed071f1e9c46

SHA256
d37e56cfd42b148072f13126862967c03be981fc7533f2fe50ee138b61de5bed

SHA512
b41c4421e9b4854d6ef5e03de23f2504d30e85bc5cf81ffc96d852606520d780f6f388e44196c5e857f3edba0d353911b40eee884f0eb8884eb4ff26134453c5

Download Submit
memory/844-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/844-14-0x00000000003E0000-0x00000000003F6000-memory.dmp

Filesize
88KB

Download
memory/844-17-0x00000000003E0000-0x00000000003F6000-memory.dmp

Filesize
88KB

Download
memory/844-22-0x00000000003E0000-0x00000000003E2000-memory.dmp

Filesize
8KB

Download
memory/844-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1976-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads