d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49

General

Target

d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
Size

85KB
MD5

a47cbb4db0109b90143fcacde2dcf857
SHA1

8676003922e060946c1e015e736e8c4a3686f04b
SHA256

d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49
SHA512

0f67513c4635c70885799b4bf37b654fec0675c76f508a1b558383e66f8dd01fbe94d6eb3637a784d22d8d5734a28d613852186023fa998a3510f3a49bef11a8
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOP4NPpMbpE1:GhfxHNIreQm+His4NPpMbpE1

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2600	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.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	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.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	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
File created	C:\Windows\SysWOW64\¢«.exe	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
File created	C:\Windows\system\rundll32.exe	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1695518422"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1695518422"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2600	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
2600	rundll32.exe
2600	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2056 wrote to memory of 2600	2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe	28
PID 2056 wrote to memory of 2600	2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe	28
PID 2056 wrote to memory of 2600	2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe	28
PID 2056 wrote to memory of 2600	2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe	28
PID 2056 wrote to memory of 2600	2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe	28
PID 2056 wrote to memory of 2600	2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe	28
PID 2056 wrote to memory of 2600	2056	d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe	28

C:\Users\Admin\AppData\Local\Temp\d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.exe
"C:\Users\Admin\AppData\Local\Temp\d6fac99057a90f39dcf48ab6137ee89285e1c9e8936a1d7cae788bef039b4d49.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:2056
- 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:2600

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
75KB

MD5
de039ef1a30ed9492005ba37b6d65ece

SHA1
9f957d4b6cb7b17f1bc39aab5bd8e04e385b8c63

SHA256
19c99ca1e1c1a22446373546ad0c32a9853dd45a752128c2881a211665aae1a1

SHA512
e6c8b582c178a2be515e944d9e979373ff306b93beec06dac43748dfe9adc844a128f19d0926185202a9edf3c2d989b442af1d404ca24fdd6a5caf404b6bc4ee

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

Filesize
81KB

MD5
05dc23c5eb59033b905a153e4ddb3467

SHA1
156c046409c532d94434247fb43ee8ffc146a9e8

SHA256
b5977f4a1ac3e77c8d0135a641de14d2dc87f19feba6ae228dc551fa53428c8c

SHA512
07efc5b2997e853368d54a267e27238271f480b0a6f384dcb98db7143c3033f770f070b87ea3d440069acb12849d72ceb025d7def842d963455b687d0973a29c

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

Filesize
81KB

MD5
05dc23c5eb59033b905a153e4ddb3467

SHA1
156c046409c532d94434247fb43ee8ffc146a9e8

SHA256
b5977f4a1ac3e77c8d0135a641de14d2dc87f19feba6ae228dc551fa53428c8c

SHA512
07efc5b2997e853368d54a267e27238271f480b0a6f384dcb98db7143c3033f770f070b87ea3d440069acb12849d72ceb025d7def842d963455b687d0973a29c

Download Submit
\Windows\system\rundll32.exe

Filesize
81KB

MD5
05dc23c5eb59033b905a153e4ddb3467

SHA1
156c046409c532d94434247fb43ee8ffc146a9e8

SHA256
b5977f4a1ac3e77c8d0135a641de14d2dc87f19feba6ae228dc551fa53428c8c

SHA512
07efc5b2997e853368d54a267e27238271f480b0a6f384dcb98db7143c3033f770f070b87ea3d440069acb12849d72ceb025d7def842d963455b687d0973a29c

Download Submit
\Windows\system\rundll32.exe

Filesize
81KB

MD5
05dc23c5eb59033b905a153e4ddb3467

SHA1
156c046409c532d94434247fb43ee8ffc146a9e8

SHA256
b5977f4a1ac3e77c8d0135a641de14d2dc87f19feba6ae228dc551fa53428c8c

SHA512
07efc5b2997e853368d54a267e27238271f480b0a6f384dcb98db7143c3033f770f070b87ea3d440069acb12849d72ceb025d7def842d963455b687d0973a29c

Download Submit
memory/2056-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2056-12-0x00000000002C0000-0x00000000002D6000-memory.dmp

Filesize
88KB

Download
memory/2056-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2056-20-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2600-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads