219cefd4d88375ee3edfc8fdb3741c822e16d86583630bf86fdd19c8e65dc3fe

General

Target

c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
Size

112KB
MD5

c0a6f10ea1c6467ae22adfade7dcbf30
SHA1

3f332d377a15ffb05b9f7467eabe117dcb88d48d
SHA256

219cefd4d88375ee3edfc8fdb3741c822e16d86583630bf86fdd19c8e65dc3fe
SHA512

254f499e734a43431c80f02f03de4b8ecc6f3f5ded7047fd40288bffd79be5e5b4bf1d21802de4fcfa9cde1ceb01377707b1208586d082e85a3eb1c0d0f0fbaf
SSDEEP

768:5BBdFYDgao5/AUrLEEzayTpBJfxBDlxcFNXK8D1FojP:5pcC/eAayJ3Rx0w

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4992	rundll32.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	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\¢«.exe	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.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	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697413954"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697413954"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "505"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4992	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
4992	rundll32.exe
4992	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 844 wrote to memory of 4992	844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe	83
PID 844 wrote to memory of 4992	844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe	83
PID 844 wrote to memory of 4992	844	c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe	83

C:\Users\Admin\AppData\Local\Temp\c0a6f10ea1c6467ae22adfade7dcbf30_exe32.exe
"C:\Users\Admin\AppData\Local\Temp\c0a6f10ea1c6467ae22adfade7dcbf30_exe32.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: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:4992

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\System\rundll32.exe

Filesize
113KB

MD5
e6496002f170a51ba0e83a47e4feee09

SHA1
aff52a993af147bf399d680d448c3d37ebdbf27c

SHA256
69da00ab2edf4b695532a845a5928afb9ff2e0a3e9409834024d9ed7a36b3cd6

SHA512
c7376b0b4469d2828b8c6298f9cfcbd12ccf5c5493cb2fe36737a601f473eab8fafc168ab33e07ad9cad34f3c66ce351b91d5a2104b3bb18183fefc0233da0ba

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

Filesize
113KB

MD5
e6496002f170a51ba0e83a47e4feee09

SHA1
aff52a993af147bf399d680d448c3d37ebdbf27c

SHA256
69da00ab2edf4b695532a845a5928afb9ff2e0a3e9409834024d9ed7a36b3cd6

SHA512
c7376b0b4469d2828b8c6298f9cfcbd12ccf5c5493cb2fe36737a601f473eab8fafc168ab33e07ad9cad34f3c66ce351b91d5a2104b3bb18183fefc0233da0ba

Download Submit
memory/844-0-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/844-7-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/4992-8-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads