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
1632	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.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	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	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

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 (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %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
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\txtfile\shell\open\command	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1715469293"	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
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1715469293"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1632	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
1632	rundll32.exe
1632	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2428 wrote to memory of 1632	2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe	28
PID 2428 wrote to memory of 1632	2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe	28
PID 2428 wrote to memory of 1632	2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe	28
PID 2428 wrote to memory of 1632	2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe	28
PID 2428 wrote to memory of 1632	2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe	28
PID 2428 wrote to memory of 1632	2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe	28
PID 2428 wrote to memory of 1632	2428	bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe	28

C:\Users\Admin\AppData\Local\Temp\bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.exe
"C:\Users\Admin\AppData\Local\Temp\bd7f7fd5a379598d37916bfb89911091ab88545f53c709079a7fcac9d20d960a.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:2428
- 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:1632

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
81KB

MD5
2d5f79b231da186f7bfa62760fab0357

SHA1
7b74b93368d3f6a739f3c070e9f58c117b9cf80d

SHA256
c29f266b60b7ae2d882a4fb0788cf64efa6a31a05c031dfa791f28927a7ca059

SHA512
198d78b23df6e426ba195c7c6ffbf94ed0ae42a053e49637822a0b53a5d1bae8fb31ad20bf4257a03162476e65159af246000a3a9c89a276de1e0b1581f31981

Download Submit
\Windows\system\rundll32.exe

Filesize
76KB

MD5
75c78e8aafd6f68cfb2e1ede3c1ec0a2

SHA1
85db79dbea5790fed69ad821b95fc1dd9787ef3a

SHA256
4ca3c651ce9e4ae5b3a5c54d291600fea4cd0eac88c11a719c3e01a01a7786f7

SHA512
71ee7e478b63e28c6d2b28acb5179775772cfb11ac1ec0f1441e4c319a98dcca8903f13abc5ad4d5caad8248c08849a6f655782dd145d8bb306cce8e8a84d24a

Download Submit
memory/1632-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2428-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2428-11-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2428-18-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2428-22-0x0000000000260000-0x0000000000262000-memory.dmp

Filesize
8KB

Download
memory/2428-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads