0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5

General

Target

0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
Size

82KB
MD5

1eed14c3d0d8c0e23a77e4b6bbf2d479
SHA1

a6c7a95c9d0abd1072fd492ef3f93ffaf52dd209
SHA256

0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5
SHA512

a6ba6377dc4dc0f72c0a14cd60b212dc8493c0467dc12604f949e3dd17b721f78626a4898d3ca8fb69cd9e12b02da90920da07789f9302090b05b130e0dda0d7
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOHt0g0f9:GhfxHNIreQm+Hiet0g0f9

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4792	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\" %*"	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.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	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
File created	C:\Windows\SysWOW64\¢«.exe	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
File created	C:\Windows\system\rundll32.exe	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.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\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697595717"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697595717"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4792	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
4792	rundll32.exe
4792	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3632 wrote to memory of 4792	3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe	85
PID 3632 wrote to memory of 4792	3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe	85
PID 3632 wrote to memory of 4792	3632	0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe	85

C:\Users\Admin\AppData\Local\Temp\0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.exe
"C:\Users\Admin\AppData\Local\Temp\0325bb5d819a2bcf618f6b597ea8b3ce897bfeab416e0da6914d20446e177cf5.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:3632
- 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:4792

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
6a28250f53d39db35b99356adb3a3ee1

SHA1
0b615da9d5a8ac38a024c806fcf2ec7eceafa5b1

SHA256
524d0fc85390d43b00f004f29a7c94aa3c053085a12de0abde15b1e62b43d2b7

SHA512
181ee69c05b589333a6a0e6aa6202cd33179fda117e4caca9d05512923e857ba04953d0e6d29342b26dc53b409bf0af0a6bfe2d876b7b225d9c413b810693d3b

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

Filesize
74KB

MD5
e76c5d128dcd5e8f61a3a56bfa66e2f1

SHA1
2acafc15130129dab5d9ec283ad8735ea432e56b

SHA256
e015ed5666f7647367cd5ff290ab917901320955fa3e1f9211e8fdafe1ef22b0

SHA512
f172172f790fef245d30cd8d50c2c2399a754f548f6451381312d1ff532319c7735000f7ec5b3ba3ae8db31765720682d574b03d10f115f840fb58b3f7468064

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

Filesize
74KB

MD5
e76c5d128dcd5e8f61a3a56bfa66e2f1

SHA1
2acafc15130129dab5d9ec283ad8735ea432e56b

SHA256
e015ed5666f7647367cd5ff290ab917901320955fa3e1f9211e8fdafe1ef22b0

SHA512
f172172f790fef245d30cd8d50c2c2399a754f548f6451381312d1ff532319c7735000f7ec5b3ba3ae8db31765720682d574b03d10f115f840fb58b3f7468064

Download Submit
memory/3632-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3632-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4792-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads