3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b

General

Target

3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
Size

78KB
MD5

933e75d6eb417732688285a3b5e67eff
SHA1

f951e48c80b582c0147f75aeb03ba34ba2972774
SHA256

3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b
SHA512

f3ce70f80f91fdbd76b4fd8d3580074219821825ecf6964bec793654e0410e0df85a8e35cbb4e55d5892de8b63545fdf280145409e2f8cdb5059ad920ee44619
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOTuEWfp:GhfxHNIreQm+HiQuEWR

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
792	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.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\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\¢«.exe	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
File created	C:\Windows\SysWOW64\¢«.exe	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
File created	C:\Windows\system\rundll32.exe	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1698690415"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
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 (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 (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1698690415"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
792	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
792	rundll32.exe
792	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 792	2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe	28
PID 2440 wrote to memory of 792	2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe	28
PID 2440 wrote to memory of 792	2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe	28
PID 2440 wrote to memory of 792	2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe	28
PID 2440 wrote to memory of 792	2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe	28
PID 2440 wrote to memory of 792	2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe	28
PID 2440 wrote to memory of 792	2440	3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe	28

C:\Users\Admin\AppData\Local\Temp\3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.exe
"C:\Users\Admin\AppData\Local\Temp\3d69d1fa8c64ee6976d69fe6e6217739ffe449cbaf230dafb5acfe7fc916a70b.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:2440
- 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:792

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
79KB

MD5
970194b80a0b51e4a1bff6d350dab863

SHA1
4d76604ea1013203824dc2c45f0a49ea1dfc376f

SHA256
d209b159d236af567d0b8e99df73f17fa18e75d86ca13b062735fec47fbd40fc

SHA512
b23e83e8007f55fd9a130b5c101f89e06ff1f5f01d68831ef2b9774c2dfdcd5a80622501936b461aad79d1226d8d7e92e22aa6927afc7553daf6dca2e9a4638a

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

Filesize
81KB

MD5
93acfb84dc4bea3d15809056fe84427d

SHA1
61f85c660291becbb873b8774908537d2a62a8fa

SHA256
f1eed4c5123ca8a4b9114eeee96d370deb818a1792f7d612eefd0421d7755b00

SHA512
996378895386a71a78bff100f4fb1ab2cdfb47968ec74e6b0d6847ba2320613006ca392c0224d999163030b53f231c5e3fa1de3917bfdffa386d444d09a5a99c

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

Filesize
81KB

MD5
93acfb84dc4bea3d15809056fe84427d

SHA1
61f85c660291becbb873b8774908537d2a62a8fa

SHA256
f1eed4c5123ca8a4b9114eeee96d370deb818a1792f7d612eefd0421d7755b00

SHA512
996378895386a71a78bff100f4fb1ab2cdfb47968ec74e6b0d6847ba2320613006ca392c0224d999163030b53f231c5e3fa1de3917bfdffa386d444d09a5a99c

Download Submit
\Windows\system\rundll32.exe

Filesize
81KB

MD5
93acfb84dc4bea3d15809056fe84427d

SHA1
61f85c660291becbb873b8774908537d2a62a8fa

SHA256
f1eed4c5123ca8a4b9114eeee96d370deb818a1792f7d612eefd0421d7755b00

SHA512
996378895386a71a78bff100f4fb1ab2cdfb47968ec74e6b0d6847ba2320613006ca392c0224d999163030b53f231c5e3fa1de3917bfdffa386d444d09a5a99c

Download Submit
\Windows\system\rundll32.exe

Filesize
81KB

MD5
93acfb84dc4bea3d15809056fe84427d

SHA1
61f85c660291becbb873b8774908537d2a62a8fa

SHA256
f1eed4c5123ca8a4b9114eeee96d370deb818a1792f7d612eefd0421d7755b00

SHA512
996378895386a71a78bff100f4fb1ab2cdfb47968ec74e6b0d6847ba2320613006ca392c0224d999163030b53f231c5e3fa1de3917bfdffa386d444d09a5a99c

Download Submit
memory/792-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/792-23-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2440-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2440-12-0x00000000002C0000-0x00000000002D6000-memory.dmp

Filesize
88KB

Download
memory/2440-17-0x00000000002C0000-0x00000000002D6000-memory.dmp

Filesize
88KB

Download
memory/2440-21-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/2440-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads