Overview

overview

7

Static

static

77b9f4d5c6...8d.exe

windows7_x64

6

77b9f4d5c6...8d.exe

windows10_x64

7

Analysis

  • max time kernel
    13s
  • max time network
    11s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    22/12/2020, 12:25

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General

  • Target
    77b9f4d5c61b2137787a5da85717e88d.exe
  • Size 74KB
  • Sample201222-1b5synvwee
  • SHA256 b5188b0e21575407dbfc61df11d80353a6fec4f57098596b45e37bc746ba58e9
  • MD5 SHA1 SHA512
Score
6/10

Malware Config

Signatures

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 11 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\77b9f4d5c61b2137787a5da85717e88d.exe
    "C:\Users\Admin\AppData\Local\Temp\77b9f4d5c61b2137787a5da85717e88d.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\Windows\SysWOW64\timeout.exe
      timeout 4
      2⤵
      • Delays execution with timeout.exe
      PID:1356
    • C:\Users\Admin\AppData\Local\Temp\77b9f4d5c61b2137787a5da85717e88d.exe
      "C:\Users\Admin\AppData\Local\Temp\77b9f4d5c61b2137787a5da85717e88d.exe"
      2⤵
        PID:308

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/308-7-0x0000000000400000-0x000000000045B000-memory.dmp
          Download

          memory/1824-2-0x0000000073980000-0x000000007406E000-memory.dmp
          Download

          memory/1824-3-0x0000000000A90000-0x0000000000A91000-memory.dmp
          Download

          memory/1824-6-0x0000000004DC0000-0x0000000004E27000-memory.dmp
          Download