Analysis

  • max time kernel
    17s
  • max time network
    21s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    23/03/2021, 08:19

General

  • Target
    a8a20bac4e89ea37322f3beb40e6f1d1.exe
  • Size 73KB
  • Sample210323-abvdec5wr2
  • SHA256 981ff4acaf8031bd5912ed1dc58de080cfc39101e96d6fd55d0f03fd4546aba4
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • azorult

C2
  • http://195.245.112.115/index.php

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 15 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8a20bac4e89ea37322f3beb40e6f1d1.exe
    "C:\Users\Admin\AppData\Local\Temp\a8a20bac4e89ea37322f3beb40e6f1d1.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:776
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:300
      • C:\Windows\SysWOW64\timeout.exe
        timeout 1
        3⤵
        • Delays execution with timeout.exe
        PID:980
    • C:\Users\Admin\AppData\Local\Temp\a8a20bac4e89ea37322f3beb40e6f1d1.exe
      "C:\Users\Admin\AppData\Local\Temp\a8a20bac4e89ea37322f3beb40e6f1d1.exe"
      2⤵
        PID:1448

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/776-2-0x0000000073F20000-0x000000007460E000-memory.dmp

          memory/776-3-0x00000000000A0000-0x00000000000A1000-memory.dmp

          memory/776-5-0x0000000004F40000-0x0000000004F41000-memory.dmp

          memory/776-6-0x0000000000560000-0x0000000000599000-memory.dmp

          memory/1448-9-0x0000000000400000-0x0000000000421000-memory.dmp

          memory/1448-11-0x0000000076071000-0x0000000076073000-memory.dmp

          memory/1448-13-0x0000000000400000-0x0000000000421000-memory.dmp

          memory/1456-12-0x000007FEF6200000-0x000007FEF647A000-memory.dmp