23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0

General

Target

23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
Size

78KB
MD5

f384488664e2c419435b6acf945234c4
SHA1

6d03e384034aa60a773e0b4f8f15b438a71cbdc1
SHA256

23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0
SHA512

e6ee3f1ee6f804c6e37a97baf7cf2677fbfb878edca828c6c629e10361d11f919fb1beac597c86f934f7ac31a6fc38fb054c3270eee33f121f473245ddb28918
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOZsNcp:GhfxHNIreQm+Hi4sNcp

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

rundll32.exe

pid process

2956 rundll32.exe

pid	process
2956	rundll32.exe

Loads dropped DLL 2 IoCs

Processes:

23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe

pid	process
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe

Modifies system executable filetype association 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

Processes:

rundll32.exe23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe

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	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 4 IoCs

Processes:

23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe

description	ioc	process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
File created	C:\Windows\SysWOW64\¢«.exe	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe

Drops file in Windows directory 2 IoCs

Processes:

23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe

description	ioc	process
File opened for modification	C:\Windows\system\rundll32.exe	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
File created	C:\Windows\system\rundll32.exe	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe

Modifies registry class 15 IoCs

Processes:

23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exerundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.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\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\txtfile\shell\open\command	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718130807"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718130807"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe

pid	process
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

rundll32.exe

pid process

2956 rundll32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exerundll32.exe

pid process

2460 23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
2956 rundll32.exe
2956 rundll32.exe

pid	process
2956	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe

description	pid	process	target process
PID 2460 wrote to memory of 2956	2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe	rundll32.exe
PID 2460 wrote to memory of 2956	2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe	rundll32.exe
PID 2460 wrote to memory of 2956	2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe	rundll32.exe
PID 2460 wrote to memory of 2956	2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe	rundll32.exe
PID 2460 wrote to memory of 2956	2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe	rundll32.exe
PID 2460 wrote to memory of 2956	2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe	rundll32.exe
PID 2460 wrote to memory of 2956	2460	23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.exe
"C:\Users\Admin\AppData\Local\Temp\23e66834cff68bcca93760c1bc526e66023f3afc239731dab2fcd1d25cc389c0.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:2460

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:2956

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
77KB

MD5
2145932d5c049f2f76bddd721cae1718

SHA1
efb89eac08e10ad49b401edb809a84606d0df46c

SHA256
52e2e8de93dffa364f620735d0574cc4615a9ca0f6cf0155f11a39029f960b62

SHA512
44bcb530a8f7671510426f49097af0cc7de64a7076a3cb5a164dab1fa9889a32d09c8288520272cbd23a81c185ed3aa5239782c45c520e0ca567b1ff137c8ff5

Download Submit
\Windows\system\rundll32.exe

Filesize
76KB

MD5
da2af1727f7e5ceae436d9951257404a

SHA1
c58838d70b43aeb5a55a206d8f9d345b4dbf8e15

SHA256
8b31d002302840a673e361118da06a24ee0070319c3301589385a658332c5780

SHA512
e503cfbbc4e46bd1bb338eba0f5339cbca4d52370a2092bac40bbb75307a45f383800ee095116c7f16d0fced09871125e40d0abb38ee9a8034575665825d852c

Download Submit
memory/2460-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2460-18-0x0000000000300000-0x0000000000316000-memory.dmp

Filesize
88KB

Download
memory/2460-12-0x0000000000300000-0x0000000000316000-memory.dmp

Filesize
88KB

Download
memory/2460-21-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2460-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads