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Analysis

  • max time kernel
    65s
  • max time network
    67s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    10/02/2023, 21:34

General

  • Target

    swift_09_feb_2023_usd_42019347593691658483-37497169570422045546309802-2379924.exe

  • Size

    11KB

  • MD5

    14fec5297bef8c5fa6d3f0f5934dea32

  • SHA1

    5549beb12b3635e878b174ae93d47a147e2f6d98

  • SHA256

    bc080be46ac6e8aaff225091e2afdb6074fed20e30d30e1ad018f58a1e1901b7

  • SHA512

    a7889770f7bed2ed2aff36c67cda577cd0ebc064c93532d425d0207bb60f55ee474d6e433402b86704d3f80e442209df53f0bd885d5fcd72b5b229ff5697fda6

  • SSDEEP

    192:cliHh1RDurJEC+88OSM4+pmqQcNM2YDM:cG1d2JEC+lKFI

Malware Config

Extracted

Family

purecrypter

C2

https://vinosbiodinamicos.com/Wnsixjk.bmp

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

  • 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
  • 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.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\swift_09_feb_2023_usd_42019347593691658483-37497169570422045546309802-2379924.exe
    "C:\Users\Admin\AppData\Local\Temp\swift_09_feb_2023_usd_42019347593691658483-37497169570422045546309802-2379924.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAANAA3AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1764
    • C:\Users\Admin\AppData\Local\Temp\swift_09_feb_2023_usd_42019347593691658483-37497169570422045546309802-2379924.exe
      C:\Users\Admin\AppData\Local\Temp\swift_09_feb_2023_usd_42019347593691658483-37497169570422045546309802-2379924.exe
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1532

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1100-54-0x0000000001190000-0x0000000001198000-memory.dmp

    Filesize

    32KB

  • memory/1100-55-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

    Filesize

    8KB

  • memory/1100-56-0x0000000005880000-0x0000000005934000-memory.dmp

    Filesize

    720KB

  • memory/1100-57-0x0000000000610000-0x000000000062A000-memory.dmp

    Filesize

    104KB

  • memory/1532-68-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1532-63-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1532-64-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1532-66-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1532-67-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1532-71-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1532-73-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1764-60-0x000000006E700000-0x000000006ECAB000-memory.dmp

    Filesize

    5.7MB

  • memory/1764-61-0x000000006E700000-0x000000006ECAB000-memory.dmp

    Filesize

    5.7MB

  • memory/1764-62-0x000000006E700000-0x000000006ECAB000-memory.dmp

    Filesize

    5.7MB