d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3

General

Target

d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
Size

76KB
MD5

4579bbe96a66a9cd538b1fa3e571b2ce
SHA1

2082efa3a91a6cd45969241457a097049529433a
SHA256

d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3
SHA512

8f0f38ca18013b2379a0b9e6bc4d9df1a4b23c6a2e3bc7e19402c2d0a36126e98320b874646ad4f67ac171b7bc28c2947ae4cbe559e30e7ac73db606c47c5df6
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOHVi:GhfxHNIreQm+HiAVi

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2616	rundll32.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.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\exefile\shell\open\command	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
File created	C:\Windows\SysWOW64\¢«.exe	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
File opened for modification	C:\Windows\system\rundll32.exe	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1706243820"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	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
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1706243820"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2616	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
2616	rundll32.exe
2616	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4388 wrote to memory of 2616	4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe	89
PID 4388 wrote to memory of 2616	4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe	89
PID 4388 wrote to memory of 2616	4388	d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe	89

C:\Users\Admin\AppData\Local\Temp\d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.exe
"C:\Users\Admin\AppData\Local\Temp\d87e9298945c1c2080f6f0dbd5dcade3512b6d240f87aa2eebbb9c8c3c0e75b3.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:4388
- 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:2616

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
82KB

MD5
66a30637171a5d87115412a1646eb187

SHA1
acd319835b92e93c3952e528ffb4f8f781cbbeb6

SHA256
9ddf77487482f4d94f1ee6250899b91a0d94fb494542ff35a59e03bc608f36f6

SHA512
80b5344ac87a87e19fa0ceb23476e6e1707da7bb3e5bc328f577287733dd6d84d98359284366e6edbd459b6e51d5267dae4f46999864307ff05aa232c143951b

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

Filesize
82KB

MD5
7c353f756f5ea459a24b4abc6cd20bb3

SHA1
593cbdc11c5253c1d7e3b4671d6d8bcdd07866ea

SHA256
38f2aadca7c79a75b8de7270a2efbf7e26664a5a72bc502fadd3ac4c492241f9

SHA512
c1382a9a4578d32e2252e1501891551cd6609a58d378433d81dcdf5a9f26bc2ec6563960ec2adff079c85d46bcf4045990651f73a5e05922b4b349862984ab8e

Download Submit
memory/4388-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4388-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads