83239ee058d2a5bf120848dd900654a94c770cce8c4cbe2a971b861795316a98

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
07/11/2024, 01:33

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General

Target
PayloadMBR/Image/Custom.bin
Size 10KB
Sample241107-byx7pasgnm
SHA256 3f7f14087ea72ff9bfde4c3b3265a672d34f829d1850d23d7a1e86ab9a1f9aa7
MD5 0109d6add9c2e43b5b06506599795450
SHA1 9550a84ca3e6b2b513d47d446a0b87fac5dc8367
SHA512 e1211066f9e772cca6d03013397e7acf168c7210b2cb1c394fa6491d6b52ba2dd96c8e6f84bc97d54826bd9c4ba761617f94b07c0b7de7e2211be166cd6ab248
SSDEEP 192:UlIy3oeAczv6/AAJAM0+ciVqDeWKOhLJE7ebNOtuyj/0kT55mj72OdUz7JHGp:UlVoXcqJJKiVjRG+AAoyT0h72VPJmp
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

discovery

Malware Config

Signatures

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AcroRd32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2836	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2836	AcroRd32.exe
2836	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2316	2604	cmd.exe	31
PID 2604 wrote to memory of 2316	2604	cmd.exe	31
PID 2604 wrote to memory of 2316	2604	cmd.exe	31
PID 2316 wrote to memory of 2836	2316	rundll32.exe	32
PID 2316 wrote to memory of 2836	2316	rundll32.exe	32
PID 2316 wrote to memory of 2836	2316	rundll32.exe	32
PID 2316 wrote to memory of 2836	2316	rundll32.exe	32

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\PayloadMBR\Image\Custom.bin
1⤵
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\PayloadMBR\Image\Custom.bin
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2316
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\PayloadMBR\Image\Custom.bin"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

SharedDataEvents

Path C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents
Size 3KB
SHA256 ff3855ed80755f2e789d87f091189103502c5975dc9fce63ed986423a9e34be6
MD5 2b1dc01a757509211d250d854b96a1e3
SHA1 7a14de6270a7501c00b94fbc9416db77c747534a
SHA512 9a2063b8fb0f22c9a2c34b4c252943d3e57a2b23582e38b05e6039af213f82d257f18edebf6dcacea0f27fa9a284176b62232dd46e4ddcd34acaaa668ee3dd8c
MD5 SHA1 SHA512

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