Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231201-en
  • resource tags

    arch:x64arch:x86image:win7-20231201-enlocale:en-usos:windows7-x64system
  • submitted
    11-12-2023 00:11

General

  • Target

    11ba26c3e43e06c31802a613807bc0aa.exe

  • Size

    37KB

  • MD5

    11ba26c3e43e06c31802a613807bc0aa

  • SHA1

    7f4b52473575f1b58a158fdb2c4adc5cdb40a338

  • SHA256

    8fa6f659cc7a07a1769348ce2cea171dd5d9877f26167bae676a951a9275c87a

  • SHA512

    f1ff3be21973b5cee9012ebe4b95118edb1c7e601450730dc83f513aa85bddc9ede7a2a2aadb5fb678b7336366b5308a9fb272b7752af36c41dd152da943cc7f

  • 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 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 3 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\11ba26c3e43e06c31802a613807bc0aa.exe
    "C:\Users\Admin\AppData\Local\Temp\11ba26c3e43e06c31802a613807bc0aa.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:3056
  • C:\Users\Admin\AppData\Local\Temp\6900.exe
    C:\Users\Admin\AppData\Local\Temp\6900.exe
    1⤵
    • Executes dropped EXE
    PID:2800

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\6900.exe

    Filesize

    276KB

    MD5

    91ae5a610a79fa0ad62a8d875b12e8a9

    SHA1

    1423999646545c24d3e5f3f0457a77775fa13833

    SHA256

    5f18d389b975280ea0f8e402bc42c8e19646858c4b534a9de31287a16a5c896a

    SHA512

    da96d2830b041d53a0354f7baa7fb86ab3e98eb1126bd7d4d7e4f2c7f0f00cce4a392375619c7542049da1f0ba784db4c8735db658514d40ae05553ef7277930

  • C:\Users\Admin\AppData\Local\Temp\6900.exe

    Filesize

    135KB

    MD5

    dc0a9d35e3c7128e74bae6068f91487d

    SHA1

    20b9cb4776d87e6e22e2709443fe8cf50ab74768

    SHA256

    79daa04610c776290d5d5690ab903a3e5c3e9a4c2cfb66800ba03817abb2857c

    SHA512

    41bfc1c863e7769415e9a0fd031aea939b03623e8f90c7f0d119c2d6423eeb82767c9cc22ac5ff94ca688aa8b58ce13c876c923bbeedf6c6c7ea47fa40fbd196

  • memory/1196-1-0x00000000025C0000-0x00000000025D6000-memory.dmp

    Filesize

    88KB

  • memory/2800-12-0x0000000000260000-0x000000000029C000-memory.dmp

    Filesize

    240KB

  • memory/2800-17-0x0000000074660000-0x0000000074D4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2800-18-0x0000000007670000-0x00000000076B0000-memory.dmp

    Filesize

    256KB

  • memory/2800-21-0x0000000074660000-0x0000000074D4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2800-22-0x0000000007670000-0x00000000076B0000-memory.dmp

    Filesize

    256KB

  • memory/3056-0-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/3056-2-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB