Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2023 14:03

General

  • Target

    INVOICE COPY.exe

  • Size

    650KB

  • MD5

    c64c2a89d124e9185d312b3f880b31d9

  • SHA1

    cb98b08b3954f8c596762a9d571006bc077612e0

  • SHA256

    8dd68257e8d07b2e0d25da886cdb7cb487085b99a469984369d486812596ea12

  • SHA512

    92c0be639e432691a58c220e015987f77755703c4f936480befd3c035ff4386ad20734a936d21921c3fc5bfa3cc4e1be6288756fc24e10147305621d34bbb472

  • SSDEEP

    12288:iq5nF8ME6jD/GYVZBzN0SeawOHlB+GrgetMtZeF3KKprWeb25LfYOghi:iqPtD/Gez03awaDrgeWtZeNr6eaLQOu

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\yvygyKkUYqKa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4420
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yvygyKkUYqKa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp89B2.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4188
    • C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe
      "C:\Users\Admin\AppData\Local\Temp\INVOICE COPY.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4068

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kun44ruw.ftp.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp89B2.tmp

    Filesize

    1KB

    MD5

    1aab50a64629308f0add243872479ade

    SHA1

    13f1ba785d8e7ea26be2a0c4ccad855756c5bbd5

    SHA256

    f839da62e766f8f8569352b7bc1c57934bc520a331dad01ce5923128c0803eef

    SHA512

    59bad18733b343cf8200412a479b5f7ab9b444ca51c467a1f7b3ca19c93da34e9b11c5b4911396d6d082475aca3369dded466e5284d8c3cd03f3a771d18b4e24

  • memory/1824-4-0x0000000005950000-0x0000000005960000-memory.dmp

    Filesize

    64KB

  • memory/1824-9-0x0000000008700000-0x000000000876A000-memory.dmp

    Filesize

    424KB

  • memory/1824-2-0x0000000005F60000-0x0000000006504000-memory.dmp

    Filesize

    5.6MB

  • memory/1824-5-0x0000000005960000-0x000000000596A000-memory.dmp

    Filesize

    40KB

  • memory/1824-6-0x00000000081E0000-0x00000000081F8000-memory.dmp

    Filesize

    96KB

  • memory/1824-7-0x0000000008340000-0x0000000008348000-memory.dmp

    Filesize

    32KB

  • memory/1824-8-0x0000000008350000-0x000000000835A000-memory.dmp

    Filesize

    40KB

  • memory/1824-3-0x00000000059B0000-0x0000000005A42000-memory.dmp

    Filesize

    584KB

  • memory/1824-10-0x000000000AE80000-0x000000000AF1C000-memory.dmp

    Filesize

    624KB

  • memory/1824-0-0x0000000000FF0000-0x0000000001098000-memory.dmp

    Filesize

    672KB

  • memory/1824-1-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/1824-17-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/1824-29-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/1824-24-0x0000000005950000-0x0000000005960000-memory.dmp

    Filesize

    64KB

  • memory/4068-75-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

    Filesize

    64KB

  • memory/4068-72-0x0000000006930000-0x0000000006980000-memory.dmp

    Filesize

    320KB

  • memory/4068-22-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/4068-73-0x0000000006B50000-0x0000000006D12000-memory.dmp

    Filesize

    1.8MB

  • memory/4068-27-0x0000000004E50000-0x0000000004EB6000-memory.dmp

    Filesize

    408KB

  • memory/4068-35-0x0000000004DD0000-0x0000000004DE0000-memory.dmp

    Filesize

    64KB

  • memory/4068-74-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4068-28-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4420-16-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4420-60-0x0000000007350000-0x000000000736A000-memory.dmp

    Filesize

    104KB

  • memory/4420-23-0x00000000058D0000-0x00000000058F2000-memory.dmp

    Filesize

    136KB

  • memory/4420-40-0x0000000005A50000-0x0000000005DA4000-memory.dmp

    Filesize

    3.3MB

  • memory/4420-41-0x0000000006030000-0x000000000604E000-memory.dmp

    Filesize

    120KB

  • memory/4420-42-0x0000000006070000-0x00000000060BC000-memory.dmp

    Filesize

    304KB

  • memory/4420-43-0x000000007FA90000-0x000000007FAA0000-memory.dmp

    Filesize

    64KB

  • memory/4420-56-0x0000000004A00000-0x0000000004A10000-memory.dmp

    Filesize

    64KB

  • memory/4420-55-0x0000000006620000-0x000000000663E000-memory.dmp

    Filesize

    120KB

  • memory/4420-58-0x0000000007270000-0x0000000007313000-memory.dmp

    Filesize

    652KB

  • memory/4420-57-0x0000000004A00000-0x0000000004A10000-memory.dmp

    Filesize

    64KB

  • memory/4420-45-0x0000000071430000-0x000000007147C000-memory.dmp

    Filesize

    304KB

  • memory/4420-44-0x0000000007030000-0x0000000007062000-memory.dmp

    Filesize

    200KB

  • memory/4420-26-0x0000000005970000-0x00000000059D6000-memory.dmp

    Filesize

    408KB

  • memory/4420-59-0x00000000079A0000-0x000000000801A000-memory.dmp

    Filesize

    6.5MB

  • memory/4420-61-0x00000000073C0000-0x00000000073CA000-memory.dmp

    Filesize

    40KB

  • memory/4420-62-0x00000000075D0000-0x0000000007666000-memory.dmp

    Filesize

    600KB

  • memory/4420-63-0x0000000007550000-0x0000000007561000-memory.dmp

    Filesize

    68KB

  • memory/4420-64-0x0000000007580000-0x000000000758E000-memory.dmp

    Filesize

    56KB

  • memory/4420-65-0x0000000007590000-0x00000000075A4000-memory.dmp

    Filesize

    80KB

  • memory/4420-67-0x0000000007670000-0x0000000007678000-memory.dmp

    Filesize

    32KB

  • memory/4420-66-0x0000000007690000-0x00000000076AA000-memory.dmp

    Filesize

    104KB

  • memory/4420-70-0x0000000074FA0000-0x0000000075750000-memory.dmp

    Filesize

    7.7MB

  • memory/4420-21-0x0000000004A00000-0x0000000004A10000-memory.dmp

    Filesize

    64KB

  • memory/4420-18-0x0000000004A00000-0x0000000004A10000-memory.dmp

    Filesize

    64KB

  • memory/4420-19-0x00000000050D0000-0x00000000056F8000-memory.dmp

    Filesize

    6.2MB

  • memory/4420-15-0x0000000004A60000-0x0000000004A96000-memory.dmp

    Filesize

    216KB