876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8

General

Target

876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
Size

79KB
MD5

87b454cfe302b5de88100fbac03a66e5
SHA1

0c9b7690bcbb24e45366ecc5f532554e4d34e02e
SHA256

876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8
SHA512

b539378cf76e04d8c933b1abfedb37e6b25336e2a85e60699ab49a6e7d00c48b3123ea11d545a6e497ea2a1267f04acc2f026df5b4b4406e866726d5216921e7
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOggTsN:GhfxHNIreQm+HiHgTsN

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2588	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.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\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
File created	C:\Windows\SysWOW64\¢«.exe	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
File created	C:\Windows\system\rundll32.exe	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.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 = "1714249070"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.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 (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1714249070"	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\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2588	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
2588	rundll32.exe
2588	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2588	2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe	28
PID 2244 wrote to memory of 2588	2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe	28
PID 2244 wrote to memory of 2588	2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe	28
PID 2244 wrote to memory of 2588	2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe	28
PID 2244 wrote to memory of 2588	2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe	28
PID 2244 wrote to memory of 2588	2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe	28
PID 2244 wrote to memory of 2588	2244	876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe	28

C:\Users\Admin\AppData\Local\Temp\876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.exe
"C:\Users\Admin\AppData\Local\Temp\876ae7e4e64448ac10a6ed733a76da3133bcd8db498624cd0b2216daa1406bf8.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:2244
- 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:2588

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
33e7976e6a292fc1297e9ff541d768d7

SHA1
f979d4b8a87fb58655c8b8c2ebb6603381d8c1bd

SHA256
03b05e7f2f3e6d4c57b44231b93aa00f2bf070fa3360393c5bfe0656b011e800

SHA512
d4005f0892071b62d1aa36d478f08efdab469e95f57fce3b185cbf77e6eac40ddb0f106a0be465616cdd8fcd1a130866c05d01337554f7a04c90978dc8c8b47a

Download Submit
\Windows\system\rundll32.exe

Filesize
74KB

MD5
f7b95466b05abaca43dc37e58fbba9a7

SHA1
4ec2dd97f33db148063a929d1d72cc1a5db27ffc

SHA256
7a5ea62f4f5ff9e919bc37accaeef35ead6b5a78461df5d10ecf9a21855e1a53

SHA512
1e473cd61fe939dc26501b1288eb4eba7d0f426ba10ec91a4f4a01a338aa24be0447b450dcfae0de30ca0f6f4c3f64dc3b942e5028264f43ae49474285c3201b

Download Submit
memory/2244-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2244-12-0x00000000002E0000-0x00000000002F6000-memory.dmp

Filesize
88KB

Download
memory/2244-20-0x00000000002E0000-0x00000000002E2000-memory.dmp

Filesize
8KB

Download
memory/2244-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads