98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd

General

Target

98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Size

83KB
MD5

83b97158ca7473747b81726f293ced6d
SHA1

03cd15739637055725684b45167a27acf573cd13
SHA256

98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd
SHA512

bd7c4d1a5ad392a1d10e59be9c286536a2260385a2a896d366f65afe023c480936e138ef7622ced333230cad1285e073cbc744950073fe73b28ba439b089e571
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWO6RzWTRG6p:GhfxHNIreQm+HiFRzWTRG6p

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2864	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.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	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.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	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
File created	C:\Windows\SysWOW64\¢«.exe	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
File created	C:\Windows\system\rundll32.exe	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1720444335"	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\MSipv	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1720444335"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.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\" %*"	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2864	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
2864	rundll32.exe
2864	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2864	2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe	30
PID 2692 wrote to memory of 2864	2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe	30
PID 2692 wrote to memory of 2864	2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe	30
PID 2692 wrote to memory of 2864	2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe	30
PID 2692 wrote to memory of 2864	2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe	30
PID 2692 wrote to memory of 2864	2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe	30
PID 2692 wrote to memory of 2864	2692	98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe	30

C:\Users\Admin\AppData\Local\Temp\98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.exe
"C:\Users\Admin\AppData\Local\Temp\98b8c35b2702332e36bdb582ea7e61997cb649a51a0a890fa21dfef92cd704cd.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:2692
- 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:2864

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
80KB

MD5
20a139672dd6dcf5199f6d016be285a8

SHA1
425eb1347a81ac20dec67c542ad59020ef8bea22

SHA256
1cf34d872830bef22af26430dc7738aab844e1e4a1999bf0a02a57a4d46f327f

SHA512
803e072649173dfb453fb58beccc1bbca20ed3e229e11ed0f9b41009aa63d92e594bde4689e09da482d4a29511a5620712304411a35b63c6191a76fa145f1f0d

Download Submit
\Windows\system\rundll32.exe

Filesize
81KB

MD5
a574034e829f6257872aad21563f7e25

SHA1
2817cc59c3e4f456a8457208f86ad56a38cc2dec

SHA256
b29ea909055fd3c10f17eddffb01cfae65fad5411a748d789d132e24d6d8a987

SHA512
35940320dc495507403bf5f9734e49fea3861dc16061406ddd59384f8c420ff4ed461c56adb2fa3472e0e6e503085a52ab5cf29957fa208fc5cf087b6398b753

Download Submit
memory/2692-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2692-12-0x00000000005B0000-0x00000000005C6000-memory.dmp

Filesize
88KB

Download
memory/2692-18-0x00000000005B0000-0x00000000005C6000-memory.dmp

Filesize
88KB

Download
memory/2692-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2692-22-0x00000000005B0000-0x00000000005B2000-memory.dmp

Filesize
8KB

Download
memory/2864-19-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads