15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff

General

Target

15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
Size

74KB
MD5

dcb2679138812257eb9a0f16012db6c9
SHA1

d85d098b84db2db93a7a915ec37bac87e6967b80
SHA256

15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff
SHA512

93be60f7954ad2e07627ab3385df7820358ac5bf6cdf86d911bf86c6ca02be04d5f3aae2ac3793d6ff41e8e63f6fb2ae5877b23756dca57ece43924e6afc00f1
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOe01:GhfxHNIreQm+Hi5e

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3456	rundll32.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\" %*"	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.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	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
File opened for modification	C:\Windows\SysWOW64\¢«.exe	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
File created	C:\Windows\SysWOW64\¢«.exe	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
File created	C:\Windows\system\rundll32.exe	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe

Modifies registry class 15 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1695366353"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainVer = "506"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1695366353"	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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3456	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
3456	rundll32.exe
3456	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3236 wrote to memory of 3456	3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe	85
PID 3236 wrote to memory of 3456	3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe	85
PID 3236 wrote to memory of 3456	3236	15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe	85

C:\Users\Admin\AppData\Local\Temp\15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.exe
"C:\Users\Admin\AppData\Local\Temp\15706d9cf82fc2e4ef220a0274549aba00d4c2e637f6d98991107e08b51fb1ff.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:3236
- 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:3456

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
8e29ed79d48d4e5c8695bef48bc69804

SHA1
c13818a53937c358732d0dcaa552702843ac2698

SHA256
a09e022c7690d9e47ce77e61a74e4aa8ee53df0b85a2c2f16cda54bb891c3ee3

SHA512
ac4d0128b716b481b98dbac86f56667e216df05ccee4e7b3061653d0996b1b2991b72f807f427827a515b871e87142fe4868d38ecd53085c23145f41883867ac

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

Filesize
79KB

MD5
d9dedbdfd276f212e79864b3479e52df

SHA1
23b5752cd3ce970f0b72175a3349f25492f56939

SHA256
7406d8d299b0e0cf336452c5d6a2434fdecc0133d96d5e2a96337a704fe05a8c

SHA512
8345ec495abbc5d2e6ac6151a665591386d074f1b7f747a7b38afa24b838946cf348b157456fe971dee983e8b3e14fd255eb1d2827792bca3ed55bb9f8511b01

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

Filesize
79KB

MD5
d9dedbdfd276f212e79864b3479e52df

SHA1
23b5752cd3ce970f0b72175a3349f25492f56939

SHA256
7406d8d299b0e0cf336452c5d6a2434fdecc0133d96d5e2a96337a704fe05a8c

SHA512
8345ec495abbc5d2e6ac6151a665591386d074f1b7f747a7b38afa24b838946cf348b157456fe971dee983e8b3e14fd255eb1d2827792bca3ed55bb9f8511b01

Download Submit
memory/3236-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3236-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/3456-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads