Analysis

  • max time kernel
    95s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    10-07-2020 17:42

General

  • Target

    40c47bf171107772b25ebc2e4c93e07f.exe

  • Size

    256KB

  • MD5

    40c47bf171107772b25ebc2e4c93e07f

  • SHA1

    3f359cee9149efd1c1f6c3af9b7a8fde00127649

  • SHA256

    0d940f08d64efc4b094727e8d8254542d6c1e87917628e1d48ea0bed86aa3247

  • SHA512

    946e6fb3bfb7e9b427d820a7a96f1e3bbbb23ccacc7e01c233d9feb8b5f690b00c55a701dab9c5a82e0e8bb346578b3eb9652d854eb8566856392ac44c3bf59e

Score
8/10

Malware Config

Signatures

  • Suspicious use of SetThreadContext 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of WriteProcessMemory 38 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

Processes

  • C:\Users\Admin\AppData\Local\Temp\40c47bf171107772b25ebc2e4c93e07f.exe
    "C:\Users\Admin\AppData\Local\Temp\40c47bf171107772b25ebc2e4c93e07f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1388
    • C:\Users\Admin\AppData\Local\Temp\40c47bf171107772b25ebc2e4c93e07f.exe
      "C:\Users\Admin\AppData\Local\Temp\40c47bf171107772b25ebc2e4c93e07f.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1816
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "chromegoogle" /tr '"C:\Users\Admin\AppData\Roaming\chromegoogle.exe"' & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1732
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /f /sc onlogon /rl highest /tn "chromegoogle" /tr '"C:\Users\Admin\AppData\Roaming\chromegoogle.exe"'
          4⤵
          • Creates scheduled task(s)
          PID:1624
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp146A.tmp.bat""
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1844
        • C:\Windows\SysWOW64\timeout.exe
          timeout 3
          4⤵
          • Delays execution with timeout.exe
          PID:1584
        • C:\Users\Admin\AppData\Roaming\chromegoogle.exe
          "C:\Users\Admin\AppData\Roaming\chromegoogle.exe"
          4⤵
          • Suspicious use of SetThreadContext
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:1548
          • C:\Users\Admin\AppData\Roaming\chromegoogle.exe
            "C:\Users\Admin\AppData\Roaming\chromegoogle.exe"
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            • Executes dropped EXE
            PID:1948

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp146A.tmp.bat

  • C:\Users\Admin\AppData\Roaming\chromegoogle.exe

  • C:\Users\Admin\AppData\Roaming\chromegoogle.exe

  • C:\Users\Admin\AppData\Roaming\chromegoogle.exe

  • \Users\Admin\AppData\Roaming\chromegoogle.exe

  • memory/1388-1-0x0000000000000000-0x0000000000000000-disk.dmp

  • memory/1548-14-0x0000000000000000-mapping.dmp

  • memory/1548-13-0x0000000000000000-mapping.dmp

  • memory/1584-10-0x0000000000000000-mapping.dmp

  • memory/1624-9-0x0000000000000000-mapping.dmp

  • memory/1732-6-0x0000000000000000-mapping.dmp

  • memory/1816-5-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1816-4-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1816-3-0x000000000040C78E-mapping.dmp

  • memory/1816-2-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1844-7-0x0000000000000000-mapping.dmp

  • memory/1948-19-0x000000000040C78E-mapping.dmp

  • memory/1948-21-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1948-22-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB