Analysis

  • max time kernel
    110s
  • max time network
    120s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    27-07-2021 14:05

General

  • Target

    SWIFT_987867T8E.exe

  • Size

    1.1MB

  • MD5

    e7e6dd904cf4e8914173e3c1144d457f

  • SHA1

    da2e7749856bb874dab798c6e73d643f2751250a

  • SHA256

    3ff843810cdddb3d63f8c88302b5b37293a28b5bdd5d71193851c312d2abcd28

  • SHA512

    8e9d6f764037476f9244b08fbff9389b66ff5bf4a0104241414041421f56c164a2704ba7bc4b8b515305527df76103ac5ab61540cdf8e804fe92243bdc0d2f42

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.vivaldi.net
  • Port:
    587
  • Username:
    rexsativa@vivaldi.net
  • Password:
    panosoktenio@gmail.com

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SWIFT_987867T8E.exe
    "C:\Users\Admin\AppData\Local\Temp\SWIFT_987867T8E.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:656
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BaTmlxzlPkyvXu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA588.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:640
    • C:\Users\Admin\AppData\Local\Temp\SWIFT_987867T8E.exe
      "C:\Users\Admin\AppData\Local\Temp\SWIFT_987867T8E.exe"
      2⤵
        PID:2272
      • C:\Users\Admin\AppData\Local\Temp\SWIFT_987867T8E.exe
        "C:\Users\Admin\AppData\Local\Temp\SWIFT_987867T8E.exe"
        2⤵
          PID:2100
        • C:\Users\Admin\AppData\Local\Temp\SWIFT_987867T8E.exe
          "C:\Users\Admin\AppData\Local\Temp\SWIFT_987867T8E.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2124

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Execution

      Scheduled Task

      1
      T1053

      Persistence

      Scheduled Task

      1
      T1053

      Privilege Escalation

      Scheduled Task

      1
      T1053

      Discovery

      System Information Discovery

      1
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SWIFT_987867T8E.exe.log
        MD5

        90acfd72f14a512712b1a7380c0faf60

        SHA1

        40ba4accb8faa75887e84fb8e38d598dc8cf0f12

        SHA256

        20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

        SHA512

        29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

      • C:\Users\Admin\AppData\Local\Temp\tmpA588.tmp
        MD5

        4f52c9026810bada4c1b19204948398a

        SHA1

        6306b5790faa691ec022d4d2cb73f8b8b90587a6

        SHA256

        f54969c95a16e61bf0c094092181615216d3643edda1925a28a51e9b4f4eb195

        SHA512

        17a9dd1c4f10ed42dc0367fc38320c1014bc8073a5ee261b4cdd9cd244a2ad55c1085cbd922134a5a8961a42f2278b177d7f02546fdb7c199fc848aa67ff2677

      • memory/640-125-0x0000000000000000-mapping.dmp
      • memory/656-123-0x00000000010F0000-0x000000000116D000-memory.dmp
        Filesize

        500KB

      • memory/656-118-0x0000000005300000-0x0000000005301000-memory.dmp
        Filesize

        4KB

      • memory/656-120-0x0000000005290000-0x0000000005291000-memory.dmp
        Filesize

        4KB

      • memory/656-121-0x00000000054D0000-0x00000000054D1000-memory.dmp
        Filesize

        4KB

      • memory/656-122-0x0000000005740000-0x000000000575B000-memory.dmp
        Filesize

        108KB

      • memory/656-114-0x00000000008C0000-0x00000000008C1000-memory.dmp
        Filesize

        4KB

      • memory/656-124-0x00000000011D0000-0x0000000001209000-memory.dmp
        Filesize

        228KB

      • memory/656-119-0x0000000005260000-0x000000000575E000-memory.dmp
        Filesize

        5.0MB

      • memory/656-117-0x0000000005760000-0x0000000005761000-memory.dmp
        Filesize

        4KB

      • memory/656-116-0x00000000051A0000-0x00000000051A1000-memory.dmp
        Filesize

        4KB

      • memory/2124-128-0x000000000043749E-mapping.dmp
      • memory/2124-127-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/2124-134-0x00000000055E0000-0x00000000055E1000-memory.dmp
        Filesize

        4KB

      • memory/2124-135-0x00000000055F0000-0x00000000055F1000-memory.dmp
        Filesize

        4KB

      • memory/2124-136-0x0000000006220000-0x0000000006221000-memory.dmp
        Filesize

        4KB