Analysis

  • max time kernel
    97s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    19-10-2021 20:37

General

  • Target

    swif.exe

  • Size

    440KB

  • MD5

    ceae6fe1fbf29a7edc7e4bdc0fa1e90d

  • SHA1

    0ce8bcf3606890d226454341edd131f025f11d3f

  • SHA256

    e6ecdaef474a3ea4407eae99ea219723f686756f42cf6bcff199f34677be8a20

  • SHA512

    50b3189b566cf32657510e9b67b90c4cc25e1ec107fdb6bf268bc5b333839dc854a8993ebb3f1a8457a80a89234931e09dbf11e20cc1cd4b0fbdcc709a222c0e

Malware Config

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 IoCs
  • Loads dropped DLL 1 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\swif.exe
    "C:\Users\Admin\AppData\Local\Temp\swif.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2696
    • C:\Users\Admin\AppData\Local\Temp\swif.exe
      "C:\Users\Admin\AppData\Local\Temp\swif.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3652

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\nsvD2D2.tmp\apcvw.dll

    MD5

    d9a3dbd5ccd605e72789888cb1bd1070

    SHA1

    72d6ea339a1d9d2736d50df39379e5d001fc281a

    SHA256

    c762e080806c747ed7629a1f870cf413b4bf68e4390899a79c27de90e010b7f2

    SHA512

    199bce599d749a187157c8692d98fd03fc1f446726b241f3b1f1d3bdf6156095ad767c9b204e6df640484e801120a0befb8e574bd9917e22f39d12b2882f4ef4

  • memory/3652-116-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/3652-117-0x000000000040188B-mapping.dmp

  • memory/3652-118-0x0000000000400000-0x000000000044B000-memory.dmp

    Filesize

    300KB

  • memory/3652-120-0x0000000000510000-0x000000000065A000-memory.dmp

    Filesize

    1.3MB

  • memory/3652-119-0x0000000000510000-0x000000000065A000-memory.dmp

    Filesize

    1.3MB

  • memory/3652-121-0x0000000000510000-0x000000000065A000-memory.dmp

    Filesize

    1.3MB

  • memory/3652-122-0x0000000000510000-0x000000000065A000-memory.dmp

    Filesize

    1.3MB

  • memory/3652-123-0x0000000000510000-0x000000000065A000-memory.dmp

    Filesize

    1.3MB