Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    22-07-2021 08:14

General

  • Target

    Payment $67,830.00.exe

  • Size

    690KB

  • MD5

    df77aaa6e3e3aa36d253ef893063452f

  • SHA1

    db0f0750d0bbe620db17a719f74c06746a2e05de

  • SHA256

    0e50b895ed10c7cc4ecab501bf363451c24b654e3c3da3ef889a6bd13856bd12

  • SHA512

    1d31dd3e1bb6cc0b2f7b50d592084083fcf4eee05665589216669eb777ae7470f91d0839ae2caba82f84f727ea2218e7860899f1f8023c80e12c7acccbd81106

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.vivaldi.net
  • Port:
    587
  • Username:
    billions101@vivaldi.net
  • Password:
    Great#@#$12909()*&^

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment $67,830.00.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment $67,830.00.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:416
    • C:\Users\Admin\AppData\Local\Temp\Payment $67,830.00.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment $67,830.00.exe"
      2⤵
        PID:3812
      • C:\Users\Admin\AppData\Local\Temp\Payment $67,830.00.exe
        "C:\Users\Admin\AppData\Local\Temp\Payment $67,830.00.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1568
      • C:\Users\Admin\AppData\Local\Temp\Payment $67,830.00.exe
        "C:\Users\Admin\AppData\Local\Temp\Payment $67,830.00.exe"
        2⤵
          PID:3732

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Credential Access

      Credentials in Files

      3
      T1081

      Collection

      Data from Local System

      3
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Payment $67,830.00.exe.log
        MD5

        90acfd72f14a512712b1a7380c0faf60

        SHA1

        40ba4accb8faa75887e84fb8e38d598dc8cf0f12

        SHA256

        20806822f0c130b340504132c1461b589261fbbc518e468f4f90733ab514cb86

        SHA512

        29dbf85e14e60868574cb4dc9bda83d3c229fb956733d8d2557f2475ee0e690ac9c2e72f31e02284996da6906ba2dbfa382a29b04c15a2406571d8ee19ad16b9

      • memory/416-119-0x0000000005920000-0x0000000005E1E000-memory.dmp
        Filesize

        5.0MB

      • memory/416-122-0x0000000007420000-0x000000000743B000-memory.dmp
        Filesize

        108KB

      • memory/416-118-0x0000000005920000-0x0000000005921000-memory.dmp
        Filesize

        4KB

      • memory/416-114-0x0000000000E20000-0x0000000000E21000-memory.dmp
        Filesize

        4KB

      • memory/416-124-0x0000000009010000-0x000000000904D000-memory.dmp
        Filesize

        244KB

      • memory/416-121-0x0000000005AF0000-0x0000000005AF1000-memory.dmp
        Filesize

        4KB

      • memory/416-117-0x0000000005E20000-0x0000000005E21000-memory.dmp
        Filesize

        4KB

      • memory/416-123-0x0000000008F90000-0x0000000009007000-memory.dmp
        Filesize

        476KB

      • memory/416-120-0x0000000005820000-0x0000000005821000-memory.dmp
        Filesize

        4KB

      • memory/416-116-0x0000000005880000-0x0000000005881000-memory.dmp
        Filesize

        4KB

      • memory/1568-126-0x00000000004374DE-mapping.dmp
      • memory/1568-125-0x0000000000400000-0x000000000043C000-memory.dmp
        Filesize

        240KB

      • memory/1568-132-0x00000000052B0000-0x00000000057AE000-memory.dmp
        Filesize

        5.0MB

      • memory/1568-133-0x0000000005740000-0x0000000005741000-memory.dmp
        Filesize

        4KB

      • memory/1568-134-0x0000000006010000-0x0000000006011000-memory.dmp
        Filesize

        4KB

      • memory/1568-137-0x00000000052B0000-0x00000000057AE000-memory.dmp
        Filesize

        5.0MB