5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343

General

Target

5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
Size

85KB
MD5

b2ba7252ffa572dc0f33e90d1596980d
SHA1

aa8753e1b4de5a27bc04ebf9a52acdd822b3e2a0
SHA256

5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343
SHA512

39c59be477a218d636e737f88bee360c6b0173df5987f34343ab6a1e354809b18f9f4dbb9148f77d67332beb81cd9181fd521ef1c58b61e121b8b92848d03487
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOiNBzz:GhfxHNIreQm+HiLNBzz

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4968	rundll32.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	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.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\notepad¢¬.exe	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
File created	C:\Windows\SysWOW64\¢«.exe	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
File created	C:\Windows\system\rundll32.exe	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1715480094"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.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
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1715480094"	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\exefile\shell\open\command	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4968	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
4968	rundll32.exe
4968	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1368 wrote to memory of 4968	1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe	85
PID 1368 wrote to memory of 4968	1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe	85
PID 1368 wrote to memory of 4968	1368	5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe	85

C:\Users\Admin\AppData\Local\Temp\5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe
"C:\Users\Admin\AppData\Local\Temp\5dfc0794f162d08cce1a66e708b4004c2603cd8ba5fb616f7cd440c361f7b343.exe"
1⤵
- 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:1368
- 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:4968

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
76KB

MD5
d53f1e7ba40def21c16fcdb4c55f89f3

SHA1
ed2997df27886b8c73e0ca77cbe1917a6cc1959b

SHA256
1ed8894e642d81faa6521b14b57d6116debdf1da43e4ea1bbf178d34c9e9a9d0

SHA512
aaec8d9197f0e0bb05480d1a09807aa0af2285978868a1c173706e6111aef11ffe242e1dc649220d49416d6d922ac2e1365491e7ef4f3de21b460e84b96bf817

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

Filesize
76KB

MD5
c2fc29dc26493651d6508b0e86105f38

SHA1
203f372bed94d897534411d4b06987dbb9fb2ce9

SHA256
2365b8031606a0050aee924a560af9631b499e1c593c8b23e1f43eb88ee4ef67

SHA512
43fdac6ae9dea721ccdc69510bcdd560d221ddfe431a80fe6d61714428877b758ff1c287303e88cb9597af60052e7316cd7892b1207e9f1a67b1a28ad95a3769

Download Submit
memory/1368-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/1368-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads