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
3312	rundll32.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\¢«.exe	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
File created	C:\Windows\SysWOW64\¢«.exe	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe

Drops file in Windows directory 2 IoCs

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

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1720530333"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1720530333"	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.exe %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\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.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\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3312	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
3312	rundll32.exe
3312	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 3312	2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe	85
PID 2692 wrote to memory of 3312	2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe	85
PID 2692 wrote to memory of 3312	2692	f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe	85

C:\Users\Admin\AppData\Local\Temp\f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.exe
"C:\Users\Admin\AppData\Local\Temp\f8693fe7dd2add24c69145ba04a14837df1bf7c38c475d46e5bede43a17d6ff0.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:2692
- 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:3312

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
73KB

MD5
533f7fddb338ae1c22b16c4f75cd86dc

SHA1
8e4274ebc66fd84892d4fe042011a24e11a6f809

SHA256
c53ce3632f8c0ea695a42fee21795f95e47af1bc5ffc6c6ea6070fb41e8bc70b

SHA512
ad3f6279bd50cd4e6bc284aff5e56f4570740794129d3cedc2395dac748e5ed05f629813beaa16854955309087ec1cdd894afa030d2a146adbbd153ed5ed24d3

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

Filesize
82KB

MD5
30b39b5cd54706ccff8cb9d4d5e27516

SHA1
cb626cc2e48fe131700c6662526d0c79836c55f8

SHA256
888b01aa0161eb07cb5eb4b329ce99feeb8e8848f73f6ea4299ddf321dbdd23a

SHA512
ba69efd9ea004da9c943bdebc6001d66f61ab0e642d9e7bc30c5668b2e4e93d1025553ec58d9175aabc2350a4eb35e9ac35bd728b53844019293c55c9d1f47f9

Download Submit
memory/2692-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2692-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads