Analysis

  • max time kernel
    155s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-03-2024 11:38

General

  • Target

    tmp.exe

  • Size

    284KB

  • MD5

    e3dc222d0a34c4b230f538a67bb7265d

  • SHA1

    d88345aef0e59341e6c4297d2685cb5f08c0aa80

  • SHA256

    a7f605d4110bba430e02c7c5240e656fb3f1dd7f02dce985e9e5677169c9de55

  • SHA512

    3d775c3c940ddd3d43fa56726ae4f8c0442a4d576cb410e60e2f010e1ff6273a2064f646c6af4a6993ff78924c329ac821811f97402d1472495c1d7a6d838797

  • SSDEEP

    6144:ukXNoFja9QXwKN1NdR7ws5lDohIiTXcnXzrCZemJPg1ZVzqH:jiFWUtXjDojODrXeIBze

Malware Config

Extracted

Family

smokeloader

Version

2022

C2

http://glueberry-og.cc/

http://glueberry-og.co/

http://glueberry-og.to/

rc4.i32
rc4.i32

Signatures

  • PureLog Stealer

    PureLog Stealer is an infostealer written in C#.

  • PureLog Stealer payload 1 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • 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 9 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1956
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      2⤵
        PID:4192
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        2⤵
          PID:1176
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          2⤵
          • Checks SCSI registry key(s)
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          PID:1252
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4168 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:4956
        • C:\Users\Admin\AppData\Roaming\fjtuvrj
          C:\Users\Admin\AppData\Roaming\fjtuvrj
          1⤵
          • Executes dropped EXE
          PID:3332

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Roaming\fjtuvrj

          Filesize

          63KB

          MD5

          0d5df43af2916f47d00c1573797c1a13

          SHA1

          230ab5559e806574d26b4c20847c368ed55483b0

          SHA256

          c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

          SHA512

          f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

        • memory/1252-11-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1252-17-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1252-13-0x0000000000400000-0x000000000040B000-memory.dmp

          Filesize

          44KB

        • memory/1956-8-0x0000000006190000-0x0000000006222000-memory.dmp

          Filesize

          584KB

        • memory/1956-3-0x0000000002C20000-0x0000000002C30000-memory.dmp

          Filesize

          64KB

        • memory/1956-6-0x0000000005DB0000-0x0000000005DE2000-memory.dmp

          Filesize

          200KB

        • memory/1956-7-0x0000000006050000-0x000000000609C000-memory.dmp

          Filesize

          304KB

        • memory/1956-0-0x00000000744B0000-0x0000000074C60000-memory.dmp

          Filesize

          7.7MB

        • memory/1956-9-0x0000000006230000-0x0000000006296000-memory.dmp

          Filesize

          408KB

        • memory/1956-4-0x0000000005FD0000-0x000000000601A000-memory.dmp

          Filesize

          296KB

        • memory/1956-5-0x0000000006020000-0x0000000006052000-memory.dmp

          Filesize

          200KB

        • memory/1956-14-0x00000000744B0000-0x0000000074C60000-memory.dmp

          Filesize

          7.7MB

        • memory/1956-2-0x00000000057F0000-0x0000000005D94000-memory.dmp

          Filesize

          5.6MB

        • memory/1956-1-0x00000000008C0000-0x000000000090E000-memory.dmp

          Filesize

          312KB

        • memory/3164-15-0x00000000023A0000-0x00000000023B6000-memory.dmp

          Filesize

          88KB

        • memory/3332-25-0x0000000000510000-0x0000000000522000-memory.dmp

          Filesize

          72KB

        • memory/3332-26-0x0000000074550000-0x0000000074D00000-memory.dmp

          Filesize

          7.7MB

        • memory/3332-28-0x0000000074550000-0x0000000074D00000-memory.dmp

          Filesize

          7.7MB