Analysis

  • max time kernel
    138s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-11-2024 18:38

General

  • Target

    fast_copy.exe

  • Size

    5.6MB

  • MD5

    f659a0d8ebd02ee8ee6eb70cef397cd7

  • SHA1

    78c4038cd147d6e14cb0255e7ff170d477e9eca4

  • SHA256

    307abb12c62dd8421cedfe6a11475e742caaae82faf9cb14d9812772edefe8d7

  • SHA512

    ae5275a56c782960d7d3efdd32d8458300b763114d040723b363f51dbd77ae6e371ef3d4081745feac202890284c77ddf8e796289a473eb43b998172b6eaddb9

  • SSDEEP

    98304:AUd98EKniqMUs8RVe0jHs4+b4EmeICxgHxC6qz1loJoYFqQ5dn6uqhAoCVtxnz+C:F8sn+RVJM44YCxwxmzLOFfdrq+P/xnCC

Malware Config

Extracted

Family

stealc

Botnet

benjiworld29

C2

http://45.159.208.21

Attributes
  • url_path

    /e24f48bbd86dab7e.php

Signatures

  • Detects HijackLoader (aka IDAT Loader) 1 IoCs
  • HijackLoader

    HijackLoader is a multistage loader first seen in 2023.

  • Hijackloader family
  • Stealc

    Stealc is an infostealer written in C++.

  • Stealc family
  • Deletes itself 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fast_copy.exe
    "C:\Users\Admin\AppData\Local\Temp\fast_copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:760
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\SysWOW64\cmd.exe
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:5000
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1576

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\6bc05779

    Filesize

    1.0MB

    MD5

    1d00a7630de9187b979ed8725b879c0f

    SHA1

    867937f34290cd6f6f8140015ee9f5b5ee0394bb

    SHA256

    6f945db60d46d427cdce1ae673edecf64bcdd1897dcefd087944546cec5cd240

    SHA512

    21b6c6d6c65e263b46999b24b4c3226084c84611512f95b43ba52d0b5937887c3558381ed0e087f92a71f91478933d08d59bda306253312fb18a171a2445d181

  • memory/760-1-0x0000000074620000-0x000000007479B000-memory.dmp

    Filesize

    1.5MB

  • memory/760-2-0x00007FFCBCB70000-0x00007FFCBCD65000-memory.dmp

    Filesize

    2.0MB

  • memory/760-3-0x0000000074633000-0x0000000074635000-memory.dmp

    Filesize

    8KB

  • memory/760-4-0x0000000074620000-0x000000007479B000-memory.dmp

    Filesize

    1.5MB

  • memory/760-5-0x0000000074620000-0x000000007479B000-memory.dmp

    Filesize

    1.5MB

  • memory/760-0-0x0000000000400000-0x0000000000561000-memory.dmp

    Filesize

    1.4MB

  • memory/1576-14-0x0000000001200000-0x0000000001463000-memory.dmp

    Filesize

    2.4MB

  • memory/1576-15-0x00007FFCBCB70000-0x00007FFCBCD65000-memory.dmp

    Filesize

    2.0MB

  • memory/1576-16-0x0000000001200000-0x0000000001463000-memory.dmp

    Filesize

    2.4MB

  • memory/1576-20-0x0000000000B03000-0x0000000000B0B000-memory.dmp

    Filesize

    32KB

  • memory/1576-21-0x0000000000A20000-0x0000000000E53000-memory.dmp

    Filesize

    4.2MB

  • memory/1576-22-0x0000000001200000-0x0000000001463000-memory.dmp

    Filesize

    2.4MB

  • memory/5000-9-0x00007FFCBCB70000-0x00007FFCBCD65000-memory.dmp

    Filesize

    2.0MB

  • memory/5000-10-0x0000000074620000-0x000000007479B000-memory.dmp

    Filesize

    1.5MB

  • memory/5000-11-0x0000000074620000-0x000000007479B000-memory.dmp

    Filesize

    1.5MB

  • memory/5000-13-0x0000000074620000-0x000000007479B000-memory.dmp

    Filesize

    1.5MB

  • memory/5000-7-0x0000000074620000-0x000000007479B000-memory.dmp

    Filesize

    1.5MB