bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a

General

Target

bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
Size

82KB
MD5

3638a9d6da3f3de75c2575f14cc8085c
SHA1

58d464f951304bd4a81ccd147ce933ef5b550026
SHA256

bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a
SHA512

5d11ff7aeb260aef08472e9ea05f118378cf3df6f09072346870d2a378b999e7fc3ab572f44b383fc8b18491b6210c1e66c57e2709c2aa89d56a7c9125801efc
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOQMESE8:GhfxHNIreQm+Hi9MESE8

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2728	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	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.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	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
File created	C:\Windows\SysWOW64\¢«.exe	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
File created	C:\Windows\system\rundll32.exe	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1715469296"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1715469296"	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.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
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2728	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2728	rundll32.exe
2728	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1836 wrote to memory of 2728	1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe	85
PID 1836 wrote to memory of 2728	1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe	85
PID 1836 wrote to memory of 2728	1836	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe	85

C:\Users\Admin\AppData\Local\Temp\bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
"C:\Users\Admin\AppData\Local\Temp\bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.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:1836
- 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:2728

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
80KB

MD5
eaa33446a1b13db94648fbabca2de2d0

SHA1
d99b462e5e9fd6f2db7c27b9f9291a3d8acd0d53

SHA256
7318bd32ed9b8714f547bf007cc1acddccf86966ddf5e0523743f5ca19efd363

SHA512
7f25b8f4029c93887d6befc5c6191708d2a16248808e9ab5a2582001448aaa42949bde67ce4f2611edeeba46d97ddc3da9a1593fa309cf5d49843218502e4f1e

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

Filesize
79KB

MD5
1a8ea3b014c53925417400888cfcd8f5

SHA1
b1378e273ac2beacfa19e19ec91afc3fce235c2f

SHA256
7ad9954e3c368abf3c791af91355bb57fd427d4896e50790803d4da0aafab5af

SHA512
0681c8bc6ec1707554d7cece2e9bdb43ecf8f40fc642a8c30f8714f1cfad5e67d637c55ff96349a72d265820e5fcc319982a7aa0465480145b012aa78a916c89

Download Submit
memory/1836-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1836-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2728-12-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads