4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16

General

Target

4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
Size

75KB
MD5

280ae5a8ad0bb41917e99c681e043961
SHA1

bb0fa60092fcc4f0579e7f42cd9588f074eb92d7
SHA256

4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16
SHA512

0b4246fca6f2d85c7ad9dd599e9f9bed7a172b1cf3ffd8b9954d2e6866766d672a40357e23a3c5b02e84e03c0966896bb0d0d393d269406c09a1c6500ce74a83
SSDEEP

1536:RshfSWHHNvoLqNwDDGw02eQmh0HjWOJRR:GhfxHNIreQm+HieRR

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4128	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	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.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\¢«.exe	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
File created	C:\Windows\SysWOW64\¢«.exe	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
File opened for modification	C:\Windows\SysWOW64\notepad¢¬.exe	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
File created	C:\Windows\SysWOW64\notepad¢¬.exe	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\rundll32.exe	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
File created	C:\Windows\system\rundll32.exe	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "\"%1\" %*"	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
Key created	\REGISTRY\MACHINE\Software\Classes\txtfile\shell\open\command	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainSetup = "1718522088"	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
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad.exe %1"	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
Key created	\REGISTRY\MACHINE\Software\Classes\MSipv	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "¢« \"%1\" %*"	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "notepad¢¬ %1"	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.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	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\MSipv\MainUp = "1718522088"	rundll32.exe
Key created	\REGISTRY\MACHINE\Software\Classes\exefile\shell\open\command	rundll32.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4128	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
4128	rundll32.exe
4128	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 632 wrote to memory of 4128	632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe	84
PID 632 wrote to memory of 4128	632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe	84
PID 632 wrote to memory of 4128	632	4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe	84

C:\Users\Admin\AppData\Local\Temp\4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.exe
"C:\Users\Admin\AppData\Local\Temp\4f0a602b31acddca755602c853df3edd2594897ec59db9a2b24176a513c0fe16.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:632
- 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:4128

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
73KB

MD5
d2c0dd76e05e3ed2106089468b2d65a2

SHA1
642967312de7e370e19515651b6cb460bec6e87e

SHA256
13cd0eb0d1b9065937173ff5e79f8b5088e0690d65e60d3782a491366697d2e3

SHA512
8e9c96fe25347aa869797e0ceba8adf0d74ad34a76a24e4fb9eb23dfdfe521b130802e3b2c8ee303f365b2bce51e70ff7bd211645c0c20b79a7ceba5d0dfc69a

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

Filesize
77KB

MD5
689a6a72fd63af3c44f3eea3e656c920

SHA1
a83f30d52890203d75f474850f73f87e9ba60240

SHA256
1dd9fa3e6efbb0734e46bd415ab601c3f8fc41c2502f1e0c402bd7696effcdf8

SHA512
940b6eb429bc021d2e05005a92e57d5698a4972b494097874ee73faaf470784ba1c0e53009ec157559b1152de2363c07f982d16608a2485fda2a4d3cfcb351c3

Download Submit
memory/632-0-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/632-14-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download
memory/4128-13-0x0000000000400000-0x0000000000415A00-memory.dmp

Filesize
86KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads