5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0

General

Target

5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
Size

78KB
MD5

f693d06b6ba25e27c1cdd6a3083ff314
SHA1

b3f2b88cd6362cb37608b2ac7ef7073cd6b24f7a
SHA256

5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0
SHA512

9f167fee3ae58beeb1b0ce26323bcacac0610ec0e73cb9077c5faa40c56139d8d17e6bd649757e69185ffebda9798fd2edc97e83dccd395f4291e92b87b641f2
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOwsI8:GhfxHNIreQm+Hi/sI8

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1360	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.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\" %*"	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.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	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\¢«.exe	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
File created	C:\Windows\system\rundll32.exe	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe

Modifies registry class 15 IoCs

description	ioc	Process
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	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.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\" %*"	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1693539081"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1693539081"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1360	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
1360	rundll32.exe
1360	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 1360	752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe	28
PID 752 wrote to memory of 1360	752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe	28
PID 752 wrote to memory of 1360	752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe	28
PID 752 wrote to memory of 1360	752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe	28
PID 752 wrote to memory of 1360	752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe	28
PID 752 wrote to memory of 1360	752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe	28
PID 752 wrote to memory of 1360	752	5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe	28

C:\Users\Admin\AppData\Local\Temp\5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.exe
"C:\Users\Admin\AppData\Local\Temp\5d6b33bddf484879283b26ee5390ea84e28a4ded1b3b8469a15d4dc8732606c0.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:752
- 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:1360

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
39a8b14b8f0c799a27c02c19589ea71c

SHA1
02ff193406f1e0d57242d49adc95faa56c9acfc6

SHA256
ed46eb75a0bfdaba3444f25095c3e8edfa56e5867bc63bf186230268943ac391

SHA512
bca417c860dd4c91fb5d618fce968bd0e1941765a81c42f86311ceaf0ed684478a8244dde330a3d917563b21ba5c5785f50bd45ed58a09b00f461747158f4916

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

Filesize
78KB

MD5
80408afd73b162f77ab848c5fe156943

SHA1
b31f7514994415893fb504551287f53827cee9d0

SHA256
113713b855d23de46cfe53b6996a97f703f7d05c1209325e4dba40a870400263

SHA512
f431b373cb7600c0db9f982f660b73501c3e7ea083c42a13ee18e87243135b833e1425a096420ff88e7a4ddec3a54f70e29facbc43d1df56b067efa65f261d73

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

Filesize
78KB

MD5
80408afd73b162f77ab848c5fe156943

SHA1
b31f7514994415893fb504551287f53827cee9d0

SHA256
113713b855d23de46cfe53b6996a97f703f7d05c1209325e4dba40a870400263

SHA512
f431b373cb7600c0db9f982f660b73501c3e7ea083c42a13ee18e87243135b833e1425a096420ff88e7a4ddec3a54f70e29facbc43d1df56b067efa65f261d73

Download Submit
\Windows\system\rundll32.exe

Filesize
78KB

MD5
80408afd73b162f77ab848c5fe156943

SHA1
b31f7514994415893fb504551287f53827cee9d0

SHA256
113713b855d23de46cfe53b6996a97f703f7d05c1209325e4dba40a870400263

SHA512
f431b373cb7600c0db9f982f660b73501c3e7ea083c42a13ee18e87243135b833e1425a096420ff88e7a4ddec3a54f70e29facbc43d1df56b067efa65f261d73

Download Submit
\Windows\system\rundll32.exe

Filesize
78KB

MD5
80408afd73b162f77ab848c5fe156943

SHA1
b31f7514994415893fb504551287f53827cee9d0

SHA256
113713b855d23de46cfe53b6996a97f703f7d05c1209325e4dba40a870400263

SHA512
f431b373cb7600c0db9f982f660b73501c3e7ea083c42a13ee18e87243135b833e1425a096420ff88e7a4ddec3a54f70e29facbc43d1df56b067efa65f261d73

Download Submit
memory/752-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/752-18-0x00000000003C0000-0x00000000003D6000-memory.dmp

Filesize
88KB

Download
memory/752-12-0x00000000003C0000-0x00000000003D6000-memory.dmp

Filesize
88KB

Download
memory/752-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/752-21-0x00000000003C0000-0x00000000003C6000-memory.dmp

Filesize
24KB

Download
memory/1360-22-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads