319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830

General

Target

319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
Size

77KB
MD5

46573db960c1d8d4f4ccd5e901020562
SHA1

383e587cb2cecdf78e30f26790ed5c0444d006ca
SHA256

319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830
SHA512

0400bd89e0f38cbce9299c35d7676cbc77eda839d1af860b450c95997fbf8ec48793139f22a296ed1747fa665fe60303ab7860eeebeaa5208386285c6eb61629
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOrwPw:GhfxHNIreQm+HiCwPw

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3000	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.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	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
File created	C:\Windows\SysWOW64\¢«.exe	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
File created	C:\Windows\system\rundll32.exe	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.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\MSipv	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1697335305"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1697335305"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3000	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
3000	rundll32.exe
3000	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1044 wrote to memory of 3000	1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe	28
PID 1044 wrote to memory of 3000	1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe	28
PID 1044 wrote to memory of 3000	1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe	28
PID 1044 wrote to memory of 3000	1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe	28
PID 1044 wrote to memory of 3000	1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe	28
PID 1044 wrote to memory of 3000	1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe	28
PID 1044 wrote to memory of 3000	1044	319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe	28

C:\Users\Admin\AppData\Local\Temp\319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.exe
"C:\Users\Admin\AppData\Local\Temp\319a058d8587bd5219c57a6de735936c3ced815dc24c8c3b7a3c9917a45cf830.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:1044
- 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:3000

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
75KB

MD5
c0c41e5e415a6ba34682db7907d03fd8

SHA1
24db39814030b86761f9b867d792df3d92f54a5e

SHA256
e438c1ebab5b9ab5451aac0e525ed053480b639d402ae2cec48dfbb413f34962

SHA512
02f6c989b2da9d8814893711b51e90d3b52f22829df2f7484f247e9c8d7516738ddfa43f9696ed35100f5b428c42e7f8e8e275d2a693021cbccb83f381e9c337

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

Filesize
79KB

MD5
5ed69cfdb06f232bb720cb17c602786f

SHA1
901909e01b1a30c9711d41b19f88b44eb4531717

SHA256
15c0dbca2a1bd147ff81deed7daf4e24e42f5eb8ea5a15c33f72ff36fe146380

SHA512
49c0d9dcea39dd4e38538c0985d9863055b0d9e676189cd216afc7ae2d24ed3af9c6015e6f0b7603b51597b40f21d65b6bcb68c98171600a488163e9cf010842

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

Filesize
79KB

MD5
5ed69cfdb06f232bb720cb17c602786f

SHA1
901909e01b1a30c9711d41b19f88b44eb4531717

SHA256
15c0dbca2a1bd147ff81deed7daf4e24e42f5eb8ea5a15c33f72ff36fe146380

SHA512
49c0d9dcea39dd4e38538c0985d9863055b0d9e676189cd216afc7ae2d24ed3af9c6015e6f0b7603b51597b40f21d65b6bcb68c98171600a488163e9cf010842

Download Submit
\Windows\system\rundll32.exe

Filesize
79KB

MD5
5ed69cfdb06f232bb720cb17c602786f

SHA1
901909e01b1a30c9711d41b19f88b44eb4531717

SHA256
15c0dbca2a1bd147ff81deed7daf4e24e42f5eb8ea5a15c33f72ff36fe146380

SHA512
49c0d9dcea39dd4e38538c0985d9863055b0d9e676189cd216afc7ae2d24ed3af9c6015e6f0b7603b51597b40f21d65b6bcb68c98171600a488163e9cf010842

Download Submit
\Windows\system\rundll32.exe

Filesize
79KB

MD5
5ed69cfdb06f232bb720cb17c602786f

SHA1
901909e01b1a30c9711d41b19f88b44eb4531717

SHA256
15c0dbca2a1bd147ff81deed7daf4e24e42f5eb8ea5a15c33f72ff36fe146380

SHA512
49c0d9dcea39dd4e38538c0985d9863055b0d9e676189cd216afc7ae2d24ed3af9c6015e6f0b7603b51597b40f21d65b6bcb68c98171600a488163e9cf010842

Download Submit
memory/1044-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1044-11-0x0000000000240000-0x0000000000256000-memory.dmp

Filesize
88KB

Download
memory/1044-17-0x0000000000240000-0x0000000000256000-memory.dmp

Filesize
88KB

Download
memory/1044-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1044-22-0x0000000000240000-0x0000000000256000-memory.dmp

Filesize
88KB

Download
memory/3000-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3000-23-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads