c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6

General

Target

c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
Size

76KB
MD5

39a69e2092379cae354b478923c444f6
SHA1

d73d141828c245976fdc08daf7db0a5a1a9f838c
SHA256

c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6
SHA512

ae20c74bc497e0b09e349cfb51a8471a18d7dfa22d188a8ce9e03dfb53225981edb1852af9d6aa9094a19502b8204aa3ab22f179a06fe3731489c086c4250540
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOppz:GhfxHNIreQm+Hiepz

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2812	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.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\" %*"	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.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	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
File created	C:\Windows\SysWOW64\¢«.exe	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
File created	C:\Windows\system\rundll32.exe	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.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\" %*"	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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\MSipv	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1693508457"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1693508457"	rundll32.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

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2812	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
2812	rundll32.exe
2812	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2472 wrote to memory of 2812	2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe	28
PID 2472 wrote to memory of 2812	2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe	28
PID 2472 wrote to memory of 2812	2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe	28
PID 2472 wrote to memory of 2812	2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe	28
PID 2472 wrote to memory of 2812	2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe	28
PID 2472 wrote to memory of 2812	2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe	28
PID 2472 wrote to memory of 2812	2472	c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe	28

C:\Users\Admin\AppData\Local\Temp\c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.exe
"C:\Users\Admin\AppData\Local\Temp\c6fd4e5cf7f4a94543c59b268be1cd9769fa394af04cca60e794d74a370af0c6.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:2472
- 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:2812

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
81KB

MD5
730ce8c75536bea2bc116ccad9661218

SHA1
33ab52d182fbe2b8e73a8297884df1cc2cdb395a

SHA256
66b9077e535cf985e53e50bf02342a90207f3f5e31359bca7f11141497e215e1

SHA512
d770a1eff803ca129be5a9cfa8a8ffccde6526b64ca6dab68816a742f987b841d244e098d5b9d2d2f36ed75f95769c4a2284cc69eb7065c38a314cd1625ab5bf

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

Filesize
85KB

MD5
b51c970cff1668ef44e358c5fc13659d

SHA1
d34b379a210b201b05443a42565105f0b962f300

SHA256
72bf26db6f4250309754fa9c0a374c770f7807d93c45174e90b0036f80294871

SHA512
57439e0ae71af88d80a0dc5a8d1d42c5c73e018ffb0a9de0cd8a8dcbf6ddf98221d0b048e2ef2e6bdbdee53d06f3e1e508f4e171a900634d826dce47e06e8288

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

Filesize
85KB

MD5
b51c970cff1668ef44e358c5fc13659d

SHA1
d34b379a210b201b05443a42565105f0b962f300

SHA256
72bf26db6f4250309754fa9c0a374c770f7807d93c45174e90b0036f80294871

SHA512
57439e0ae71af88d80a0dc5a8d1d42c5c73e018ffb0a9de0cd8a8dcbf6ddf98221d0b048e2ef2e6bdbdee53d06f3e1e508f4e171a900634d826dce47e06e8288

Download Submit
\Windows\system\rundll32.exe

Filesize
85KB

MD5
b51c970cff1668ef44e358c5fc13659d

SHA1
d34b379a210b201b05443a42565105f0b962f300

SHA256
72bf26db6f4250309754fa9c0a374c770f7807d93c45174e90b0036f80294871

SHA512
57439e0ae71af88d80a0dc5a8d1d42c5c73e018ffb0a9de0cd8a8dcbf6ddf98221d0b048e2ef2e6bdbdee53d06f3e1e508f4e171a900634d826dce47e06e8288

Download Submit
\Windows\system\rundll32.exe

Filesize
85KB

MD5
b51c970cff1668ef44e358c5fc13659d

SHA1
d34b379a210b201b05443a42565105f0b962f300

SHA256
72bf26db6f4250309754fa9c0a374c770f7807d93c45174e90b0036f80294871

SHA512
57439e0ae71af88d80a0dc5a8d1d42c5c73e018ffb0a9de0cd8a8dcbf6ddf98221d0b048e2ef2e6bdbdee53d06f3e1e508f4e171a900634d826dce47e06e8288

Download Submit
memory/2472-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2472-12-0x0000000000290000-0x00000000002A6000-memory.dmp

Filesize
88KB

Download
memory/2472-20-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2472-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2812-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads