057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d

General

Target

057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
Size

75KB
MD5

574fdd1bc7fdbc3c8850e457e92aa044
SHA1

7a491c129ee9994ea41129d81c58d5dd864071b6
SHA256

057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d
SHA512

78ebe8f7e21ab54d18eb73d68c84cb374e4c746b2f15f566eca58837afa095e9a84548062bce815d7e3c62eb0e3ef7592075d495e91206fcc5fbc095e4e8ae31
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO/k6:GhfxHNIreQm+Hiwk6

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2152	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.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	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.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

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\¢«.exe	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
File created	C:\Windows\system\rundll32.exe	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.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"	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1720479935"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1720479935"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2152	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
2152	rundll32.exe
2152	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2052 wrote to memory of 2152	2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe	30
PID 2052 wrote to memory of 2152	2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe	30
PID 2052 wrote to memory of 2152	2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe	30
PID 2052 wrote to memory of 2152	2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe	30
PID 2052 wrote to memory of 2152	2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe	30
PID 2052 wrote to memory of 2152	2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe	30
PID 2052 wrote to memory of 2152	2052	057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe	30

C:\Users\Admin\AppData\Local\Temp\057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.exe
"C:\Users\Admin\AppData\Local\Temp\057dbdcd55a7ea7faaf791ae6b72d05b6e0856662817fb8ee0332e9ababbd84d.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:2052
- 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:2152

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
82KB

MD5
942a1b874d5db890a2d146d8de20d172

SHA1
cbd563ec5ec007b061babd6c387a133270293fe2

SHA256
9428b499116cf137acc713185686fc31cbb16f0b8f3851146d3003c5ab8aadcc

SHA512
04ee443dfd69c8fa0b32f05a3d3a5c79cac30e7f1b139e3d35e15183df0982cf7f103579292e91dfbd3a0997fceafbc138cac73ff3d821d33c57632fa5ef7f5a

Download Submit
\Windows\system\rundll32.exe

Filesize
77KB

MD5
0f402fe051622dd9191c1154aba43a7e

SHA1
be7d01cbbc79241021901ea1dc5a6967f7e0a9e8

SHA256
0896b0a7c82b9e855de0d1d49f886fc0452ec2020454bd71bd2123d97e9f1ba5

SHA512
576b08ba27b8311b8f68bf54296a4d48cf0b07a1b9cdbe97b14a02093db2d5f83aadd838f6c74b6401b33e4da4f4e3c574a05c2454589a32adc8ff1c9e24dc1f

Download Submit
memory/2052-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2052-13-0x00000000005B0000-0x00000000005C6000-memory.dmp

Filesize
88KB

Download
memory/2052-21-0x00000000005B0000-0x00000000005B2000-memory.dmp

Filesize
8KB

Download
memory/2052-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2152-18-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads