8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb

General

Target

8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
Size

81KB
MD5

0638b9d5da4dfdb55ab294499813b93b
SHA1

9b0eae0a06671cf1866da8ae52f231f2fd99511b
SHA256

8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb
SHA512

3c7495ecbc2e77e369c7c1c8906b2ace4646610effe564f05cfbb47a79affcb29177af340eb798026ba74ad3072aba2ac992fcc8c9a46708f844d77ce37b6c47
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWODJZ:GhfxHNIreQm+HimJZ

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1296	rundll32.exe

Loads dropped DLL 2 IoCs

pid	Process
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.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	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	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\notepad¢¬.exe	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
File created	C:\Windows\SysWOW64\¢«.exe	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\rundll32.exe	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
File opened for modification	C:\Windows\system\rundll32.exe	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.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\" %*"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1717813961"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1717813961"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1296	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
1296	rundll32.exe
1296	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 1296	1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe	28
PID 1760 wrote to memory of 1296	1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe	28
PID 1760 wrote to memory of 1296	1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe	28
PID 1760 wrote to memory of 1296	1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe	28
PID 1760 wrote to memory of 1296	1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe	28
PID 1760 wrote to memory of 1296	1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe	28
PID 1760 wrote to memory of 1296	1760	8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe	28

C:\Users\Admin\AppData\Local\Temp\8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.exe
"C:\Users\Admin\AppData\Local\Temp\8345448dc9a83789b8bbb18edf41d03e1e0d5e34c5cb1ae96a153c6752fadfcb.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:1760
- 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:1296

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
77KB

MD5
19eee172af507efc3d87d75736983619

SHA1
00dbdf4a589d014b9410cbb2bce8b11bb0ee41f2

SHA256
20fee36d0801a77c2bc6f92d1270b832f2d79f448884ed32fd0d411cb5b55b6f

SHA512
c02a0ab6e6a69dfa1b72bccb8235bcd6a8a8dcae2206cb58fcdfd5b6d4cd48c784e9e582efd44560f2dd7ceb1082ead19dc642cb2760acf7ae10d64528aa5139

Download Submit
\Windows\system\rundll32.exe

Filesize
75KB

MD5
9af1aac8d81e1b992961ef137e9c235a

SHA1
ea81ca75b5983e05eda91bfb528531c1a566c8fc

SHA256
d27bd918d327d3dd2e1c0996f427cc1a5d410029adde592369aaaeb104376a42

SHA512
4ecec75e9244e8c9e424bb302bfdc30d0040f0ed863cbe8e38266b584646d6d9d94422567a04461585eb67d80239da3653fcf96e6f7985eaa47b95e63c06ecca

Download Submit
memory/1760-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1760-18-0x0000000000300000-0x0000000000316000-memory.dmp

Filesize
88KB

Download
memory/1760-17-0x0000000000300000-0x0000000000316000-memory.dmp

Filesize
88KB

Download
memory/1760-20-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1760-21-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads