Analysis

  • max time kernel
    147s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/04/2024, 19:23

General

  • Target
    tmp.exe
  • Size 284KB
  • Sample240417-x3vs1sbf62
  • SHA256 a7f605d4110bba430e02c7c5240e656fb3f1dd7f02dce985e9e5677169c9de55
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • PureLog Stealer

    PureLog Stealer is an infostealer written in C#.

  • PureLog Stealer payload 1 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

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:2084
    • 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)
      PID:1244

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1244-11-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/1244-13-0x0000000000400000-0x000000000040B000-memory.dmp

        memory/2084-6-0x0000000005DF0000-0x0000000005E22000-memory.dmp

        memory/2084-3-0x0000000005060000-0x0000000005070000-memory.dmp

        memory/2084-4-0x0000000005D70000-0x0000000005DBA000-memory.dmp

        memory/2084-5-0x0000000005DC0000-0x0000000005DF2000-memory.dmp

        memory/2084-1-0x0000000074E80000-0x0000000075630000-memory.dmp

        memory/2084-7-0x0000000005E30000-0x0000000005E7C000-memory.dmp

        memory/2084-8-0x0000000005FA0000-0x0000000006032000-memory.dmp

        memory/2084-9-0x0000000006040000-0x00000000060A6000-memory.dmp

        memory/2084-2-0x0000000005590000-0x0000000005B34000-memory.dmp

        memory/2084-0-0x0000000000650000-0x000000000069E000-memory.dmp

        memory/2084-14-0x0000000074E80000-0x0000000075630000-memory.dmp