1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae

General

Target

1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
Size

76KB
MD5

5ef2c53f6b88c27b99296eaa354ea32e
SHA1

6c897861bed721fdc600654bfd8acac4764d1f14
SHA256

1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae
SHA512

b6f893c05b5d022a39c5603ca1bf6f5f6e0854c37246fa99ec56055cea75f20a18b380669ed4c5851c0c68700a67c319e095e8d4b99d3725d68b14b4253ea129
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO5Q8a:GhfxHNIreQm+Hi2Q8a

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2260	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.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	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\¢«.exe	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
File created	C:\Windows\system\rundll32.exe	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1692904316"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.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\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1692904316"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2260	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
2260	rundll32.exe
2260	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2516 wrote to memory of 2260	2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe	28
PID 2516 wrote to memory of 2260	2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe	28
PID 2516 wrote to memory of 2260	2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe	28
PID 2516 wrote to memory of 2260	2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe	28
PID 2516 wrote to memory of 2260	2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe	28
PID 2516 wrote to memory of 2260	2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe	28
PID 2516 wrote to memory of 2260	2516	1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe	28

C:\Users\Admin\AppData\Local\Temp\1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.exe
"C:\Users\Admin\AppData\Local\Temp\1ac1b512ad902e2e852e44c237d1081b91ee8dbb46d45a7b69ec8e30c6f25fae.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:2516
- 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:2260

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
86KB

MD5
7575885fedeae130b343aec11cb263ed

SHA1
46b6649c4f9e278bda214cbd20ab165cdbfe2d1a

SHA256
eb6c1c4f7f5f23ad8838c29ec82aa721ab922fb3287b82047176bf2bc26a75af

SHA512
7919d9ef8997c06f4f673480cb5ceec2c8d261f2042c07375381a2c34bb66b61a70a28ea4a2f6e5a50f9f99bbdc1900505f959f3b00383f5ba8250f323e50ae3

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

Filesize
80KB

MD5
ee1929381073d4a7a51cccfbc1e6ab46

SHA1
ae38f75fc90514237b720f4d9c83f6e666fd9930

SHA256
cbfc09a2c99734cbce2536a22006bf402b90a0cf1270a6dc881dc468bddaa04e

SHA512
96ceb8576182b137f6bdfd80510493b413d80ec99998ec14086dc27591748b55e0274859298bede9963c0f121bf8f357a442c43c907a8af6adc1151981626e33

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

Filesize
80KB

MD5
ee1929381073d4a7a51cccfbc1e6ab46

SHA1
ae38f75fc90514237b720f4d9c83f6e666fd9930

SHA256
cbfc09a2c99734cbce2536a22006bf402b90a0cf1270a6dc881dc468bddaa04e

SHA512
96ceb8576182b137f6bdfd80510493b413d80ec99998ec14086dc27591748b55e0274859298bede9963c0f121bf8f357a442c43c907a8af6adc1151981626e33

Download Submit
\Windows\system\rundll32.exe

Filesize
80KB

MD5
ee1929381073d4a7a51cccfbc1e6ab46

SHA1
ae38f75fc90514237b720f4d9c83f6e666fd9930

SHA256
cbfc09a2c99734cbce2536a22006bf402b90a0cf1270a6dc881dc468bddaa04e

SHA512
96ceb8576182b137f6bdfd80510493b413d80ec99998ec14086dc27591748b55e0274859298bede9963c0f121bf8f357a442c43c907a8af6adc1151981626e33

Download Submit
\Windows\system\rundll32.exe

Filesize
80KB

MD5
ee1929381073d4a7a51cccfbc1e6ab46

SHA1
ae38f75fc90514237b720f4d9c83f6e666fd9930

SHA256
cbfc09a2c99734cbce2536a22006bf402b90a0cf1270a6dc881dc468bddaa04e

SHA512
96ceb8576182b137f6bdfd80510493b413d80ec99998ec14086dc27591748b55e0274859298bede9963c0f121bf8f357a442c43c907a8af6adc1151981626e33

Download Submit
memory/2260-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2260-23-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2516-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2516-12-0x00000000002D0000-0x00000000002E6000-memory.dmp

Filesize
88KB

Download
memory/2516-17-0x00000000002D0000-0x00000000002E6000-memory.dmp

Filesize
88KB

Download
memory/2516-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2516-22-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads