7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc

General

Target

7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
Size

81KB
MD5

9689d384749ee9885a1ab50fca3eafb7
SHA1

87f5ff4fa9a77a86e531d050a6220587800e8fd6
SHA256

7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc
SHA512

2b727b6a6276194b41d55ff81ec61708a900eef2f02a6f98d209389e70394e8f1852650180b15e01e2770bac6a2349e592bd7bae35062b441fc4c809a81dab09
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOIoJ2T7ZPp8X9PTiD:GhfxHNIreQm+HiyuD

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1408	rundll32.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	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.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	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
File created	C:\Windows\SysWOW64\¢«.exe	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
File created	C:\Windows\system\rundll32.exe	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1713644256"	rundll32.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	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.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\MSipv	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1713644256"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1408	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
1408	rundll32.exe
1408	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4536 wrote to memory of 1408	4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe	88
PID 4536 wrote to memory of 1408	4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe	88
PID 4536 wrote to memory of 1408	4536	7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe	88

C:\Users\Admin\AppData\Local\Temp\7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe
"C:\Users\Admin\AppData\Local\Temp\7a42cc2f8d2df9d2f886b98ceba8e32a1e399c2a0a4d5f3c6351c8ec4e4097cc.exe"
1⤵
- 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:4536
- 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:1408

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
85KB

MD5
8b85935d2d72e2bd062693521d388fe5

SHA1
cb4dfca5dea781d3f88775c0397fa7a92574e68c

SHA256
458e5fef27c152092084b891bd4a2f8f546a9830fa16581f891fbd6efb1f0b12

SHA512
252eeec88a0c0f08d77567317811437a5a3a46ef1332d78d6321ca86fe23b5d17c9e0d41e4e0e99185014c8104a65b158ad1bb5a51225b1a1f15515aa4773b66

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

Filesize
73KB

MD5
3dddb0d6d34ebadfcea76892d788ca24

SHA1
d2e1cf740e408ee4f3c5d038aaaeed8c7ec44b84

SHA256
72233fa923600a5263274ab4356c6bcf91c455ca03519dd95766d1242a20dfeb

SHA512
ff2e54ab07c0b2043857cf97fad4b62060337dc840b1daf81eb209ad3379e207cb667d038f596feed8e6ef9f9606b84b1ceba097cc186f31c60c39d42367cd72

Download Submit
memory/4536-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4536-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads