Analysis

  • max time kernel
    150s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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 2 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 1 IoCs
  • Suspicious use of WriteProcessMemory 14 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 use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2960
    • 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:2524
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {2F09EC9D-644E-471E-8DD9-E99ABEA9AE1F} S-1-5-21-3452737119-3959686427-228443150-1000:QGTQZTRE\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2488
    • C:\Users\Admin\AppData\Roaming\ctrrjuc
      C:\Users\Admin\AppData\Roaming\ctrrjuc
      2⤵
      • Executes dropped EXE
      PID:2720

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    63KB

    MD5

    b58b926c3574d28d5b7fdd2ca3ec30d5

    SHA1

    d260c4ffd603a9cfc057fcb83d678b1cecdf86f9

    SHA256

    6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3

    SHA512

    b13cb998822b716b695013bcd6dec62a2290567d0d1743b2d982ca084235cf69c6ea1fc91c9d4e62657c6f9e102c7c60e81296ab055ffe43b887c5f8ec8958ab

  • memory/1200-15-0x0000000002CE0000-0x0000000002CF6000-memory.dmp

    Filesize

    88KB

  • memory/2524-10-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2524-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2524-13-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2524-8-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2720-24-0x0000000074B10000-0x00000000751FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2720-23-0x0000000000180000-0x0000000000192000-memory.dmp

    Filesize

    72KB

  • memory/2960-6-0x00000000049B0000-0x00000000049FC000-memory.dmp

    Filesize

    304KB

  • memory/2960-0-0x00000000008F0000-0x000000000093E000-memory.dmp

    Filesize

    312KB

  • memory/2960-3-0x00000000005A0000-0x00000000005E0000-memory.dmp

    Filesize

    256KB

  • memory/2960-14-0x0000000074AD0000-0x00000000751BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2960-2-0x00000000020F0000-0x000000000213A000-memory.dmp

    Filesize

    296KB

  • memory/2960-1-0x0000000074AD0000-0x00000000751BE000-memory.dmp

    Filesize

    6.9MB

  • memory/2960-5-0x0000000000570000-0x00000000005A2000-memory.dmp

    Filesize

    200KB

  • memory/2960-4-0x0000000000480000-0x00000000004B2000-memory.dmp

    Filesize

    200KB