cc2a650b6e2888898a9f728d06da476f4302ff332e28a45a527a0dd7f9ea6b84

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
10-05-2024 19:24

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General

Target

USBRecordingNbk1.3.0.exe
Size

834KB
MD5

96265ebc52138e7d02ab55627b9a2152
SHA1

49858d5ac0753d13a019d3bb3f4232fe9375b47c
SHA256

b7d725f9bfd54c1b76d667118d332bcf6ba6a3a9c75ce6c55dd1020e2a0c2c2b
SHA512

f2c9c7faf3ecd1bab8be5ae39eaa5c687c53891541faf3ff610e39c28678b2d0cac2339b19c21b1432ca4c7f90b50679fa736253a7a24f3599e23ca99c316586
SSDEEP

12288:SvfyIIIzAClE7uDOch+h2ul/mJo4GM+9MhmTXalv1x+o4tZw/olIdIEAR:esSzlEqF+hVcOC2gmTalvqo4v1VR

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4356	irsetup.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x00080000000233ed-3.dat	upx
behavioral2/memory/4356-4-0x0000000000400000-0x0000000000527000-memory.dmp	upx
behavioral2/memory/4356-14-0x0000000000400000-0x0000000000527000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\USB Recording Notebook Setup Log.txt	irsetup.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4356	irsetup.exe
4356	irsetup.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4400 wrote to memory of 4356	4400	USBRecordingNbk1.3.0.exe	83
PID 4400 wrote to memory of 4356	4400	USBRecordingNbk1.3.0.exe	83
PID 4400 wrote to memory of 4356	4400	USBRecordingNbk1.3.0.exe	83

C:\Users\Admin\AppData\Local\Temp\USBRecordingNbk1.3.0.exe
"C:\Users\Admin\AppData\Local\Temp\USBRecordingNbk1.3.0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4400
- C:\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe
  __IRAOFF:520716 "__IRAFN:C:\Users\Admin\AppData\Local\Temp\USBRecordingNbk1.3.0.exe"
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  PID:4356

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\_ir_sf7_temp_0\irsetup.exe

Filesize
440KB

MD5
75ca7ff96bf5a316c3af2de6a412bd54

SHA1
0a093950790ff0dddff6f5f29c6b02c10997e0c5

SHA256
d95b5bf9ca97c1900de5357743282bab655d61d616606485088e1708559b7cf1

SHA512
b8da86f2f1e908955254e5168d0447f479cec7815a8b081a7b38eb87187cb2eb992109c67e006361b96bc1529ee8abc9dc477d78e9ca565e43f5415b492771d4

Download Submit
memory/4356-4-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download
memory/4356-14-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download