Analysis

  • max time kernel
    90s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-09-2024 00:39

General

  • Target

    f675e62581b09ecb840416233c8460bc.exe

  • Size

    8.2MB

  • MD5

    f675e62581b09ecb840416233c8460bc

  • SHA1

    b7a42ed4a3f13d13905d910f02147d8bdc040b2b

  • SHA256

    b4fed30b7d5c533ae1a553607630badbdc10aeacb612ff996e919d014bc2313c

  • SHA512

    3bebe82737757c606356cab8877aa7ece5304f7eebbff1695bc4f20502e981d9ce4551ad3492f7c5580bd06d94cd63cd70a8706d24e73ae52e55e38f0f9b9a8a

  • SSDEEP

    196608:ZEI9eJx7jQ/b7NuD4VuRS79tcM6vJKjJQQcrgUEr0NFMx3BWhp6D:ZEI9eXQ/b7NuD4VuRS79tczvJJQcrPEL

Malware Config

Extracted

Family

stealc

Botnet

benjiworld9

C2

http://5.188.86.71

Attributes
  • url_path

    /05feb00efef399f8.php

Signatures

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

    HijackLoader is a multistage loader first seen in 2023.

  • Stealc

    Stealc is an infostealer written in C++.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\f675e62581b09ecb840416233c8460bc.exe
    "C:\Users\Admin\AppData\Local\Temp\f675e62581b09ecb840416233c8460bc.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3056
    • 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:3492
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        PID:1448

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • C:\Users\Admin\AppData\Local\Temp\775234cb

    Filesize

    909KB

    MD5

    836c20844a9c69f26d76e9f4aca6b665

    SHA1

    3691a26b25f60e7bfa63ab9003ef867cda60874c

    SHA256

    f8b73410d2a2ec8f9f35a95561048ab60febde41dc0180e4d338228928d52447

    SHA512

    ee2cee8e2aafb9075e0eaa7714880f6095df466de19260d40c901258069b3960d24b8c57a2781ff284099e1e1f688b9e2e52dbb02ffa3d03eb4bcc1ceadef612

  • memory/1448-18-0x0000000000B70000-0x0000000000DB5000-memory.dmp

    Filesize

    2.3MB

  • memory/1448-95-0x0000000000B70000-0x0000000000DB5000-memory.dmp

    Filesize

    2.3MB

  • memory/1448-94-0x0000000000B70000-0x0000000000DB5000-memory.dmp

    Filesize

    2.3MB

  • memory/1448-24-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/1448-22-0x0000000000193000-0x000000000019B000-memory.dmp

    Filesize

    32KB

  • memory/1448-23-0x00000000000B0000-0x00000000004E3000-memory.dmp

    Filesize

    4.2MB

  • memory/1448-20-0x0000000000B70000-0x0000000000DB5000-memory.dmp

    Filesize

    2.3MB

  • memory/1448-19-0x00007FFE6E7D0000-0x00007FFE6E9C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3056-6-0x0000000002A20000-0x0000000002A21000-memory.dmp

    Filesize

    4KB

  • memory/3056-8-0x0000000073FE0000-0x000000007415B000-memory.dmp

    Filesize

    1.5MB

  • memory/3056-0-0x0000000002A20000-0x0000000002A21000-memory.dmp

    Filesize

    4KB

  • memory/3056-5-0x0000000073FE0000-0x000000007415B000-memory.dmp

    Filesize

    1.5MB

  • memory/3056-4-0x0000000073FF3000-0x0000000073FF5000-memory.dmp

    Filesize

    8KB

  • memory/3056-3-0x00007FFE6E7D0000-0x00007FFE6E9C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3056-2-0x0000000073FE0000-0x000000007415B000-memory.dmp

    Filesize

    1.5MB

  • memory/3056-1-0x0000000000400000-0x0000000000C48000-memory.dmp

    Filesize

    8.3MB

  • memory/3492-15-0x0000000073FE0000-0x000000007415B000-memory.dmp

    Filesize

    1.5MB

  • memory/3492-17-0x0000000073FE0000-0x000000007415B000-memory.dmp

    Filesize

    1.5MB

  • memory/3492-14-0x0000000073FE0000-0x000000007415B000-memory.dmp

    Filesize

    1.5MB

  • memory/3492-13-0x00007FFE6E7D0000-0x00007FFE6E9C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3492-10-0x0000000073FE0000-0x000000007415B000-memory.dmp

    Filesize

    1.5MB