cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0

General

Target

cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
Size

75KB
MD5

6385db27dc64e87161f2402aa8bc1346
SHA1

86d597f4f042e4db5dababeb616516db8553db73
SHA256

cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0
SHA512

11ee5b085ad86de03d35c5314d5b9312f009ced78e5a8d4fde6aac7280f5920b35440df57924bc0f5f3951ccd87000600853705486d4f3bb39fab685d488d455
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO5qu:GhfxHNIreQm+Hiaqu

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2560	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.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\" %*"	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.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	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
File created	C:\Windows\SysWOW64\¢«.exe	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
File created	C:\Windows\system\rundll32.exe	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1715501690"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1715501690"	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\exefile\shell\open\command	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2560	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
2560	rundll32.exe
2560	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 2560	2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe	28
PID 2656 wrote to memory of 2560	2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe	28
PID 2656 wrote to memory of 2560	2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe	28
PID 2656 wrote to memory of 2560	2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe	28
PID 2656 wrote to memory of 2560	2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe	28
PID 2656 wrote to memory of 2560	2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe	28
PID 2656 wrote to memory of 2560	2656	cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe	28

C:\Users\Admin\AppData\Local\Temp\cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.exe
"C:\Users\Admin\AppData\Local\Temp\cac5de93b7e0fa1946f9e6cac597d2c3c5f4a6a559d34e2517236c93573ef6f0.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:2656
- 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:2560

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
78KB

MD5
22ba8ca5f671a55201a69693dc40818b

SHA1
37dfa46d1285f21cde9e9134f282c2a32b369291

SHA256
dee02cf3b0f22f5c440610f6bf5908943f28a32014e10effbecd044426d1ae43

SHA512
2c9957f73bf765d5fe5743d4f08dc5c68b335589b118cd72e8b0983129282824ff866c9ef3cdafed3c970d74518fb7fdd7838533c866ce515ddab82fa09e36c9

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

Filesize
81KB

MD5
054db0d68f63c16d3ff6f4f3f31c8a8a

SHA1
e5a436a8609d6813410bbe608647534015b37ae2

SHA256
9485ba65c1cf678d125cfd779011c56ddf8b89815bd895a52c98eef913ab023e

SHA512
188ad79f995616c4e525d26d75b52b6300312fef3e182575568a796f625bd4c1d39dc7daba3cc78f0a1cbb49cc0a7fd8ddac260dc8f86e663733e97679945abb

Download Submit
memory/2656-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2656-18-0x00000000003A0000-0x00000000003B6000-memory.dmp

Filesize
88KB

Download
memory/2656-16-0x00000000003A0000-0x00000000003B6000-memory.dmp

Filesize
88KB

Download
memory/2656-21-0x00000000003A0000-0x00000000003A2000-memory.dmp

Filesize
8KB

Download
memory/2656-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads