Analysis

  • max time kernel
    103s
  • max time network
    111s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09-11-2020 19:38

General

  • Target

    swift copy.exe

  • Size

    719KB

  • MD5

    e81c9c4f4938a3776316f8f53f496fcb

  • SHA1

    b2812675de55190e6d4cec7f7793220f85125d8c

  • SHA256

    c81e2f0203afa0e7ae9f21ac44dd1f802ca9ab7ccb6e1b1a8bca306cf98f78c0

  • SHA512

    5245d82aaa8b7d60bcacbe5085c801b7d302813998279678dcc6456d2f773077b0f40ea9a0d4c0cae0bf1abf8e6f2d121294babf196c081da5a9dc276b3f447f

Malware Config

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • CoreEntity .NET Packer 1 IoCs

    A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

  • AgentTesla Payload 2 IoCs
  • rezer0 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\swift copy.exe
    "C:\Users\Admin\AppData\Local\Temp\swift copy.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4704
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ElHafTBYIsjwrC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp38E8.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:748
    • C:\Users\Admin\AppData\Local\Temp\swift copy.exe
      "{path}"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4164
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:4444

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\swift copy.exe.log
      MD5

      b4f7a6a57cb46d94b72410eb6a6d45a9

      SHA1

      69f3596ffa027202d391444b769ceea0ae14c5f7

      SHA256

      23994ebe221a48ea16ebad51ae0d4b47ccd415ae10581f9405e588d4f6c2523b

      SHA512

      be6da516e54c3a5b33ac2603137a2f8cf8445ff5961dd266faedf3627bae8979953d7ef305538df0151c609917a5b99bf5d023bdd32de50fd5c723950f90db5c

    • C:\Users\Admin\AppData\Local\Temp\tmp38E8.tmp
      MD5

      3bcf25f15f54c5e066e0a1e587fca5f5

      SHA1

      81f07c68e0445a65c9c5e0a3fccb350e03cecef0

      SHA256

      5f6b0fb00f1a85b63c5aefa69854bf448e76b2193a4d653f6c66958f8a0b1ee9

      SHA512

      f6ab67a9a044162f5b8f92853f2c07cf1ad292dbf259d73b96ee54418504f81d061dfd00fada45b4096c244dabb291b68ebfde7735bd9654dcd94faf2559e6ad

    • memory/748-10-0x0000000000000000-mapping.dmp
    • memory/4164-21-0x0000000006320000-0x0000000006321000-memory.dmp
      Filesize

      4KB

    • memory/4164-20-0x0000000005860000-0x0000000005861000-memory.dmp
      Filesize

      4KB

    • memory/4164-15-0x0000000073530000-0x0000000073C1E000-memory.dmp
      Filesize

      6.9MB

    • memory/4164-13-0x000000000044C8AE-mapping.dmp
    • memory/4164-12-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

    • memory/4444-22-0x0000000000000000-mapping.dmp
    • memory/4704-5-0x0000000008200000-0x0000000008201000-memory.dmp
      Filesize

      4KB

    • memory/4704-9-0x000000000A680000-0x000000000A681000-memory.dmp
      Filesize

      4KB

    • memory/4704-8-0x000000000A580000-0x000000000A5D3000-memory.dmp
      Filesize

      332KB

    • memory/4704-7-0x0000000001780000-0x0000000001783000-memory.dmp
      Filesize

      12KB

    • memory/4704-6-0x0000000005A00000-0x0000000005A01000-memory.dmp
      Filesize

      4KB

    • memory/4704-0-0x0000000073530000-0x0000000073C1E000-memory.dmp
      Filesize

      6.9MB

    • memory/4704-4-0x0000000008620000-0x0000000008621000-memory.dmp
      Filesize

      4KB

    • memory/4704-3-0x0000000005980000-0x00000000059DC000-memory.dmp
      Filesize

      368KB

    • memory/4704-1-0x0000000000EA0000-0x0000000000EA1000-memory.dmp
      Filesize

      4KB