bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9

General

Target

bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
Size

82KB
MD5

28cb535e070b8a5eac6885ed2ad693e9
SHA1

d6959ddf71c7dc6d4a6becad7280693c8692f393
SHA256

bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9
SHA512

137a6a4f8a3920f5683690cb25390f0c25e12da533215e00bfc6c10e992a7d807945749a217bce2b6874d26c038909c052bb0522d2c9441eb36a4a0bfd802cea
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOYAlB75:GhfxHNIreQm+Hi1AlB75

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
316	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.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	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.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\¢«.exe	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
File created	C:\Windows\SysWOW64\¢«.exe	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
File created	C:\Windows\system\rundll32.exe	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1716322674"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	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
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1716322674"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
316	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
316	rundll32.exe
316	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2932 wrote to memory of 316	2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe	29
PID 2932 wrote to memory of 316	2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe	29
PID 2932 wrote to memory of 316	2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe	29
PID 2932 wrote to memory of 316	2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe	29
PID 2932 wrote to memory of 316	2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe	29
PID 2932 wrote to memory of 316	2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe	29
PID 2932 wrote to memory of 316	2932	bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe	29

C:\Users\Admin\AppData\Local\Temp\bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.exe
"C:\Users\Admin\AppData\Local\Temp\bd2ec252249b933eb8017ccac34efed4ff4337038ca87c9b14cca9fdf73210c9.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:2932
- 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:316

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
74KB

MD5
cb418c074425a2583e5253d4d25d7b18

SHA1
34f48b1436265fcb21a00e82e24cb01ef8516287

SHA256
f872376021e3ee71c8956a8c81ab3feaf1973afd1cef8b9bb987febacb60e6e2

SHA512
2ead660eb0cf5732d3d28498b23cf3107c026be33ca77d5d24a58848d7ca1cfab8db1de44920bb2f34501f347c9660522d67903b80548747b2765146e9478c49

Download Submit
\Windows\system\rundll32.exe

Filesize
79KB

MD5
b07c68691e4eb3e60b3234e6234910d4

SHA1
89b313d3e7d637d1b82938371d2d1bbd000d67e4

SHA256
aece58cb45e15596cbf587828f9fb573cc79d4299647733fc5189ac1a5a6e1aa

SHA512
2bbb4178e45185349a6481d8fcc86bc8b3d6f0127910e3eb6d2e00bcc666126da720d9f2ddd985592ea430c81367972eb87d70fc3403e42338080feab034a315

Download Submit
memory/316-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2932-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2932-19-0x0000000000270000-0x0000000000286000-memory.dmp

Filesize
88KB

Download
memory/2932-18-0x0000000000270000-0x0000000000286000-memory.dmp

Filesize
88KB

Download
memory/2932-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2932-22-0x0000000000270000-0x0000000000272000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads