Overview

overview

10

Static

static

tmp.exe

windows7-x64

10

tmp.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    25-07-2022 06:54

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General

  • Target

    tmp.exe

  • Size

    177KB

  • MD5

    90f6fded7e723bec5f87d99310c4d6c7

  • SHA1

    45a628682111c4d4e1fc1adcf86abb4f112f6f5a

  • SHA256

    b17e291e0dde8310125a67358658010ed0f6ac6131d8bca2373343405c4e68d7

  • SHA512

    fd1189d46eb87c61e6c51a3588aed67ff3029f8d59d86761aa8f72f21eaf479751a0fe5d7b984cbb5016f3cf0188a1bda9c3b354717305ed79a0f4f080634541

Score
10/10
persistencesuricata

Malware Config

Signatures

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata
  • Adds policy Run key to start application 2 TTPs 2 IoCs
    persistence
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
    adwarespyware
  • Suspicious behavior: EnumeratesProcesses 27 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1412
    • C:\Users\Admin\AppData\Local\Temp\tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:1496
    • C:\Windows\SysWOW64\chkdsk.exe
      "C:\Windows\SysWOW64\chkdsk.exe"
      2⤵
      • Adds policy Run key to start application
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • Enumerates system info in registry
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1096
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
        3⤵
        • Deletes itself
        PID:1676
      • C:\Program Files\Mozilla Firefox\Firefox.exe
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        3⤵
          PID:1144

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    Modify Registry

    2
    T1112

    Credential Access

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • \Users\Admin\AppData\Local\Temp\sqlite3.dll
      Filesize

      650KB

      MD5

      5c73e64374d9ba37ac5569d1f7de5c9b

      SHA1

      592e26ffea429b30e0a648720b43739d2ff5e590

      SHA256

      5d0a5018218dbc363909a7eb915a763863cfbcad6d1a6231eb20633d098d57c7

      SHA512

      c0cfaf1bd497a799b3480a268bc4d2548d139f3f4b9f1ed41b09cd4c934d285b0ca36c1c3f45f8718feb50274bce1897939d0dfe612e26010c8bbaf004fe8905

      Download Submit
    • memory/1096-60-0x0000000000080000-0x00000000000AD000-memory.dmp
      Filesize

      180KB

      Download
    • memory/1096-57-0x0000000000000000-mapping.dmp
      Download
    • memory/1096-59-0x0000000000F20000-0x0000000000F27000-memory.dmp
      Filesize

      28KB

      Download
    • memory/1096-61-0x0000000002330000-0x0000000002633000-memory.dmp
      Filesize

      3.0MB

      Download
    • memory/1096-62-0x0000000000990000-0x0000000000A20000-memory.dmp
      Filesize

      576KB

      Download
    • memory/1096-64-0x0000000000080000-0x00000000000AD000-memory.dmp
      Filesize

      180KB

      Download
    • memory/1096-66-0x0000000075851000-0x0000000075853000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1412-56-0x0000000004760000-0x0000000004824000-memory.dmp
      Filesize

      784KB

      Download
    • memory/1412-63-0x0000000006280000-0x000000000638C000-memory.dmp
      Filesize

      1.0MB

      Download
    • memory/1412-65-0x0000000006280000-0x000000000638C000-memory.dmp
      Filesize

      1.0MB

      Download
    • memory/1496-54-0x0000000000A30000-0x0000000000D33000-memory.dmp
      Filesize

      3.0MB

      Download
    • memory/1496-55-0x0000000000130000-0x0000000000141000-memory.dmp
      Filesize

      68KB

      Download
    • memory/1676-58-0x0000000000000000-mapping.dmp
      Download