Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    19/04/2026, 15:07

General

  • Target
    2026-04-19_a5c9fe47ff64121df7754df3aaa984ca_elex.exe
  • Size 3.0MB
  • Sample260419-shrteadw4k
  • SHA256 72a583db13387623b345998bfb8edd4bb5a2fea06001fc3a9e677843a8a5e993
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Custom signature
    Detects executables containing bas64 encoded gzip files 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 50 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-04-19_a5c9fe47ff64121df7754df3aaa984ca_elex.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-04-19_a5c9fe47ff64121df7754df3aaa984ca_elex.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4900
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:100212
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 100212 -s 1148
        3⤵
        • Program crash
        PID:4256
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 100212 -ip 100212
    1⤵
      PID:2192

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          Processes.txt

          • Path C:\Users\Admin\AppData\Local\d3ecc03bb525c38809a161c7afcc1763\Admin@[email protected]\Processes.txt
          • Size 4KB
          • SHA256 fc63c3bec2cd2ee1a1f95b0e6e129e0db0469c92836b54950a7638df0c24356c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Processes.txt

          • Path C:\Users\Admin\AppData\Local\d3ecc03bb525c38809a161c7afcc1763\Admin@[email protected]\Processes.txt
          • Size 4KB
          • SHA256 9c4f96dedacc7366412ac3dcf1bf9c5b3703cd3eb6317b4c4894d99d038907f3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          Software.txt

          • Path C:\Users\Admin\AppData\Local\d3ecc03bb525c38809a161c7afcc1763\Admin@[email protected]\Software.txt
          • Size 5KB
          • SHA256 3e3dcb1fa57fb5cb5be2362a8a0d6c0575b5978275b44ccdfeed5c8930c51173
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/4900-6-0x0000000000400000-0x00000000005FA000-memory.dmp

          memory/4900-0-0x00000000004C7000-0x00000000004C8000-memory.dmp

          memory/100212-164-0x0000000004CC0000-0x0000000004F41000-memory.dmp

          memory/100212-169-0x0000000005980000-0x0000000005992000-memory.dmp

          memory/100212-21-0x00000000063C0000-0x0000000006452000-memory.dmp

          memory/100212-8-0x0000000005100000-0x0000000005166000-memory.dmp

          memory/100212-151-0x0000000004CC0000-0x0000000004F41000-memory.dmp

          memory/100212-154-0x00000000055B0000-0x00000000055CD000-memory.dmp

          memory/100212-153-0x0000000004F50000-0x0000000004FC4000-memory.dmp

          memory/100212-7-0x00000000003C0000-0x0000000000643000-memory.dmp

          memory/100212-168-0x00000000058F0000-0x00000000058FA000-memory.dmp

          memory/100212-28-0x0000000006B10000-0x00000000070B4000-memory.dmp

          memory/100212-267-0x0000000004CC0000-0x0000000004F41000-memory.dmp

          memory/100212-269-0x00000000055B0000-0x00000000055CD000-memory.dmp

          memory/100212-1-0x0000000000650000-0x00000000006EE000-memory.dmp

          memory/100212-336-0x0000000004CC0000-0x0000000004F41000-memory.dmp

          memory/100212-345-0x0000000004CC0000-0x0000000004F41000-memory.dmp

          memory/100212-351-0x0000000004CC0000-0x0000000004F41000-memory.dmp

          memory/100212-363-0x0000000004CC0000-0x0000000004F41000-memory.dmp

          memory/100212-368-0x00000000055B0000-0x00000000055CD000-memory.dmp

          memory/100212-366-0x0000000004CC0000-0x0000000004F41000-memory.dmp