Analysis

  • max time kernel
    140s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 20:38

General

  • Target

    b1776ceebd34675ee06d9c33a70a8ac2c520aa8eae4ef4185b78ab2981d78451.exe

  • Size

    126KB

  • MD5

    3f24a300cd20fce097aa079ab2953e4c

  • SHA1

    4528ff57ad2f99410666b472068a76d761f5b19c

  • SHA256

    b1776ceebd34675ee06d9c33a70a8ac2c520aa8eae4ef4185b78ab2981d78451

  • SHA512

    99bc0332477eed03387ea6b22a97cfeb5021d683b3ce949d31cbabce25e44e0df34e6ca9f8844152e7331ca882e8eb5bdfd699fc3bd2f3cc73e752e9f52ab38f

  • SSDEEP

    3072:zpF3T6kXMn/Yf96OHt1SNh/dX2miQpWv2IeXhHYM4p4m0e1A1N:zHOUMnY96OmN7l/ieX11N

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b1776ceebd34675ee06d9c33a70a8ac2c520aa8eae4ef4185b78ab2981d78451.exe
    "C:\Users\Admin\AppData\Local\Temp\b1776ceebd34675ee06d9c33a70a8ac2c520aa8eae4ef4185b78ab2981d78451.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1500
    • C:\Users\Admin\AppData\Local\Temp\b1776ceebd34675ee06d9c33a70a8ac2c520aa8eae4ef4185b78ab2981d78451.exe
      C:\Users\Admin\AppData\Local\Temp\b1776ceebd34675ee06d9c33a70a8ac2c520aa8eae4ef4185b78ab2981d78451.exe
      2⤵
      • Drops file in Drivers directory
      • Adds Run key to start application
      • Drops autorun.inf file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2028

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

1
T1091

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1500-54-0x0000000075D71000-0x0000000075D73000-memory.dmp
    Filesize

    8KB

  • memory/1500-55-0x0000000074850000-0x0000000074DFB000-memory.dmp
    Filesize

    5.7MB

  • memory/1500-56-0x0000000074850000-0x0000000074DFB000-memory.dmp
    Filesize

    5.7MB

  • memory/1500-66-0x0000000074850000-0x0000000074DFB000-memory.dmp
    Filesize

    5.7MB

  • memory/2028-63-0x0000000000400000-0x000000000041A000-memory.dmp
    Filesize

    104KB

  • memory/2028-60-0x0000000000400000-0x000000000041A000-memory.dmp
    Filesize

    104KB

  • memory/2028-61-0x0000000000400000-0x000000000041A000-memory.dmp
    Filesize

    104KB

  • memory/2028-62-0x0000000000400000-0x000000000041A000-memory.dmp
    Filesize

    104KB

  • memory/2028-58-0x0000000000400000-0x000000000041A000-memory.dmp
    Filesize

    104KB

  • memory/2028-64-0x0000000000413AFE-mapping.dmp
  • memory/2028-57-0x0000000000400000-0x000000000041A000-memory.dmp
    Filesize

    104KB

  • memory/2028-67-0x0000000000400000-0x000000000041A000-memory.dmp
    Filesize

    104KB

  • memory/2028-69-0x0000000000400000-0x000000000041A000-memory.dmp
    Filesize

    104KB

  • memory/2028-71-0x00000000747D0000-0x0000000074D7B000-memory.dmp
    Filesize

    5.7MB

  • memory/2028-72-0x0000000000136000-0x0000000000147000-memory.dmp
    Filesize

    68KB

  • memory/2028-73-0x00000000747D0000-0x0000000074D7B000-memory.dmp
    Filesize

    5.7MB