2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94

General

Target

2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
Size

77KB
MD5

36acd1a977dbf385a491690cdab676e6
SHA1

89d3afd56166caa113d86c9a2f596ae718a32e4e
SHA256

2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94
SHA512

724dc3c0b7c687460144df2f05cff10ea38f5a90d694f713064b71a5d5c6b5856efbcc7fcebc0229cdd1c4451ea08bc50bc832b43b0684377316c8be2bf204c4
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOyYFK:GhfxHNIreQm+Hi1YFK

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2448	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.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	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.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 opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
File created	C:\Windows\SysWOW64\¢«.exe	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
File created	C:\Windows\system\rundll32.exe	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1714332063"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1714332063"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2448	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
2448	rundll32.exe
2448	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 2448	1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe	28
PID 1992 wrote to memory of 2448	1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe	28
PID 1992 wrote to memory of 2448	1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe	28
PID 1992 wrote to memory of 2448	1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe	28
PID 1992 wrote to memory of 2448	1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe	28
PID 1992 wrote to memory of 2448	1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe	28
PID 1992 wrote to memory of 2448	1992	2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe	28

C:\Users\Admin\AppData\Local\Temp\2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.exe
"C:\Users\Admin\AppData\Local\Temp\2b22513d49ca3aeb2ec8bec31cd96951fc9e813bc6e8c7a5d2bda66a9f289c94.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:1992
- 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:2448

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

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Downloads

C:\Windows\SysWOW64\notepad¢¬.exe

Filesize
76KB

MD5
742e2a7719820ce4ca4ad65cacd9b50c

SHA1
33f99b6077891900770503e26411e2e32e2501f7

SHA256
e5b9d699a3ac7f982db867bebf8127731884a1fb4d8b36e86030879065fbd19d

SHA512
972b1799426460d67f20ff075d44b3a9b67b717ce7f47cf3b228321b35bbec9810b4b4137c0651cc17bba8ab0cef7e681ac7a1b13a7dbbca2e3cd228eb137f09

Download Submit
\Windows\system\rundll32.exe

Filesize
80KB

MD5
63151a93b09935dbbf2fd1ae88e119b0

SHA1
714f1f40c0d8ad8ef69023afbaa6638ffcdd3dc6

SHA256
58bc4b3fb6ee02f95c4abbf7e9ebcce1fd2379ecb44a1da4d05fd50796188b4a

SHA512
1e7fee0173b865fb7c22f2d859bcf3d6f998b21fe5332355808c96d01a51adea932c0d52efbe745677c2ea076f5c4942dedf5f1d6d638d6736c63d0a84008044

Download Submit
memory/1992-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1992-18-0x0000000000360000-0x0000000000376000-memory.dmp

Filesize
88KB

Download
memory/1992-17-0x0000000000360000-0x0000000000376000-memory.dmp

Filesize
88KB

Download
memory/1992-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1992-21-0x0000000000360000-0x0000000000362000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads