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Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231130-en
  • resource tags

    arch:x64arch:x86image:win7-20231130-enlocale:en-usos:windows7-x64system
  • submitted
    11/12/2023, 03:21

General

  • Target

    ac026bee297cb9c7852863cb13154b84.exe

  • Size

    37KB

  • MD5

    ac026bee297cb9c7852863cb13154b84

  • SHA1

    aa76e5d1598afe2e1f7d55c5d1728857bea263c7

  • SHA256

    eb8fdac6122db3911fb94887b8b56997a7eace7e65158d681906f194bfe3979d

  • SHA512

    0a51efec9448885f2dd1aa4da2fa5569aa8c743c78098c1542641283b814338d8d196d5839697a44142044c819ef48cf48122d80a9b82c81b72574ba157836e3

  • 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 2 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 FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac026bee297cb9c7852863cb13154b84.exe
    "C:\Users\Admin\AppData\Local\Temp\ac026bee297cb9c7852863cb13154b84.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3036
  • C:\Users\Admin\AppData\Local\Temp\6C0C.exe
    C:\Users\Admin\AppData\Local\Temp\6C0C.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2188

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\6C0C.exe

    Filesize

    401KB

    MD5

    f88edad62a7789c2c5d8047133da5fa7

    SHA1

    41b1f056cdda764a1c7c402c6fa4f8ab2f3ce5f9

    SHA256

    eb2b1ce5574096b91eb9e0482117d2518ab188c0747a209dc77e88d30bb970dc

    SHA512

    e2d5b0ace5dfd3bd2321b2a42b7e7725071ca440389dc5ef12720a34727ae84c2907cd7befeae5d53568d9deaee8443f4cbda44b598cfc9b6316d9389be09a60

  • memory/1336-1-0x0000000002F00000-0x0000000002F16000-memory.dmp

    Filesize

    88KB

  • memory/2188-12-0x00000000001F0000-0x000000000022C000-memory.dmp

    Filesize

    240KB

  • memory/2188-17-0x0000000074010000-0x00000000746FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2188-18-0x00000000021F0000-0x0000000002230000-memory.dmp

    Filesize

    256KB

  • memory/2188-21-0x0000000074010000-0x00000000746FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2188-22-0x00000000021F0000-0x0000000002230000-memory.dmp

    Filesize

    256KB

  • memory/2188-24-0x0000000074010000-0x00000000746FE000-memory.dmp

    Filesize

    6.9MB

  • memory/3036-0-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3036-2-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB