f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0

General

Target

f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
Size

80KB
MD5

82af85c2ee08cdff5e14f996f70cc3bb
SHA1

11b407bb9fab4a1fe87bf1f9bf77a1190f89a2e8
SHA256

f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0
SHA512

8db75ec2c3607084d7e4f9dd1298f7e9f18b8db0db06ee3cd34bf6eff8b68b4185afb1881405afc5c173a4b09611dec083fa8a2b4bd0dc8fa4bd5b6e08e9f0b0
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOdr4apL/:GhfxHNIreQm+Hi+r4apL/

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2112	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.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	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
File created	C:\Windows\SysWOW64\¢«.exe	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
File created	C:\Windows\system\rundll32.exe	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.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\txtfile\shell\open\command	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\MainSetup = "1720530334"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1720530334"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2112	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2112	rundll32.exe
2112	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2112	2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe	30
PID 2088 wrote to memory of 2112	2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe	30
PID 2088 wrote to memory of 2112	2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe	30
PID 2088 wrote to memory of 2112	2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe	30
PID 2088 wrote to memory of 2112	2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe	30
PID 2088 wrote to memory of 2112	2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe	30
PID 2088 wrote to memory of 2112	2088	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe	30

C:\Users\Admin\AppData\Local\Temp\f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
"C:\Users\Admin\AppData\Local\Temp\f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.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:2088
- 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:2112

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
84KB

MD5
4ef26a4dcee63ef8a7ab200ed88de0e4

SHA1
4bc4236dd5c48ad73083ae159de4f0fd737bc5a2

SHA256
9abc8f88be5d2d59c73c0f6ed940f7773b0346b131f56d3166efb595a6b4ecd4

SHA512
ee3a2364b9187ebf4d937f78c065d6d6bb2b5c9c7e580dc9e4c7f830340674174d6d97a7b04add624659dcb663e88d7350b788c141d6ab8146c7a7680882986b

Download Submit
\Windows\system\rundll32.exe

Filesize
75KB

MD5
650d67959e86889737357821b32c8bea

SHA1
ab658b5ff06a682ed620db0ee32476468a3be06c

SHA256
42571491006ec19445515ef0c2ee6b00aee8ee6ea35f0893c62edc28fa5b8ebc

SHA512
70b3de889e039d285b952d1a1bd46c12a12db0e45de850ba2ef8b588c99aab239cc9b96ea3c5078232cf69de706f9e214c0b1b6bda1bef52cd3f718b60f5a17a

Download Submit
memory/2088-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2088-13-0x0000000000260000-0x0000000000276000-memory.dmp

Filesize
88KB

Download
memory/2088-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2088-21-0x0000000000260000-0x0000000000262000-memory.dmp

Filesize
8KB

Download
memory/2112-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads