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Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    11/12/2023, 03:56

General

  • Target

    0x000a0000000155f3-115.exe

  • Size

    37KB

  • MD5

    8837a89b82d0d3b0259cc9f47b2e599b

  • SHA1

    51dd86a6a717a8f1470fff7a65f96c983aa71f09

  • SHA256

    ad5c98936429f847e6808a4efdb80faf452a5c5c31d91f9f7de2560e51478701

  • SHA512

    4a6c660c78bc99916d68978243f1140203a5805a3a7ae7a1749c609bd5aaf06b9ac253c09c0a206acdb832b45bc1ab700a5beb98024131779a45c70b53c7bc71

  • SSDEEP

    768:d8n3N4JRqwg8UTB+8zx70f0PSuopLwlFFWO7:dmN4JRrg8ypxSKFFX

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://81.19.131.34/fks/index.php

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

LiveTraffic

C2

77.105.132.87:6731

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 3 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0x000a0000000155f3-115.exe
    "C:\Users\Admin\AppData\Local\Temp\0x000a0000000155f3-115.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:536
  • C:\Users\Admin\AppData\Local\Temp\B136.exe
    C:\Users\Admin\AppData\Local\Temp\B136.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2792

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\B136.exe

    Filesize

    401KB

    MD5

    f88edad62a7789c2c5d8047133da5fa7

    SHA1

    41b1f056cdda764a1c7c402c6fa4f8ab2f3ce5f9

    SHA256

    eb2b1ce5574096b91eb9e0482117d2518ab188c0747a209dc77e88d30bb970dc

    SHA512

    e2d5b0ace5dfd3bd2321b2a42b7e7725071ca440389dc5ef12720a34727ae84c2907cd7befeae5d53568d9deaee8443f4cbda44b598cfc9b6316d9389be09a60

  • memory/536-0-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/536-2-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/1212-1-0x00000000029D0000-0x00000000029E6000-memory.dmp

    Filesize

    88KB

  • memory/2792-12-0x0000000000290000-0x00000000002CC000-memory.dmp

    Filesize

    240KB

  • memory/2792-17-0x0000000074450000-0x0000000074B3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2792-18-0x00000000073E0000-0x0000000007420000-memory.dmp

    Filesize

    256KB

  • memory/2792-20-0x0000000074450000-0x0000000074B3E000-memory.dmp

    Filesize

    6.9MB

  • memory/2792-21-0x00000000073E0000-0x0000000007420000-memory.dmp

    Filesize

    256KB

  • memory/2792-23-0x0000000074450000-0x0000000074B3E000-memory.dmp

    Filesize

    6.9MB