Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2024 06:19

General

  • Target

    FYCC new order S460013746-560121121.exe

  • Size

    920KB

  • MD5

    78eff09f295aa4b3aaf36af5245efe94

  • SHA1

    dea545e8b85f2c1201f7aa3a54f643826ca8a6ed

  • SHA256

    38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106

  • SHA512

    a8b49247156aa7004206f24211054f7f37c73df06e8a85ecf843e9c44cc99a5cf29886e85ba03d89a87a1d3968322c25cdef7877ae6c5efcfa946910204ce67f

  • SSDEEP

    12288:T3TEG/N9AKPGu+MAyn6+6Slh5/2qVe2lR8XaZW4IaBAP7r9r/+ppppppppppppp7:8AnAPRo6+pPOnoR8X2W4JBA1q

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FYCC new order S460013746-560121121.exe
    "C:\Users\Admin\AppData\Local\Temp\FYCC new order S460013746-560121121.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1840
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\FYCC new order S460013746-560121121.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3756
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zriEHRxkd.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3240
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zriEHRxkd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD11B.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2576
    • C:\Users\Admin\AppData\Local\Temp\FYCC new order S460013746-560121121.exe
      "C:\Users\Admin\AppData\Local\Temp\FYCC new order S460013746-560121121.exe"
      2⤵
        PID:2832
      • C:\Users\Admin\AppData\Local\Temp\FYCC new order S460013746-560121121.exe
        "C:\Users\Admin\AppData\Local\Temp\FYCC new order S460013746-560121121.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1780

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      350bc1c983f3961e35fbda67a7e300e0

      SHA1

      d71e1b051055a82a8b8f730f19203a438ccc2de0

      SHA256

      11304ed51d0d4fdacc4817f7db482e534323979c660cee50e0ab57311369d5ff

      SHA512

      e2e6f72e1b3f4921bd2fc22d73c004f166ed30668e75899d92bf446749e214d647f51a97e3f982aed342ec62dc2d00762c69748f0df5e38bf4740b9e7bbdd0a7

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jlnbbwnm.csz.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpD11B.tmp

      Filesize

      1KB

      MD5

      e09de965597276b64fbaeb8410c3883d

      SHA1

      c1cf03655159d538514ab5a175a823358f5abb8a

      SHA256

      e6cb26817555bc6a2a73d420651d36d5d56eb7061a90f888b2f0387eda9130ac

      SHA512

      37bf5c7152fffa236a889ee234c0c603e038be29e97ca74e12c6488de95691ecdb2bcf3dd0cfdc5cb7d7352fcddafa35561ab43107369183a31cdb7b3caef8bd

    • memory/1780-46-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/1780-79-0x0000000006280000-0x00000000062D0000-memory.dmp

      Filesize

      320KB

    • memory/1840-4-0x0000000004B60000-0x0000000004B6A000-memory.dmp

      Filesize

      40KB

    • memory/1840-7-0x00000000746CE000-0x00000000746CF000-memory.dmp

      Filesize

      4KB

    • memory/1840-8-0x00000000746C0000-0x0000000074E70000-memory.dmp

      Filesize

      7.7MB

    • memory/1840-9-0x0000000002470000-0x00000000024F2000-memory.dmp

      Filesize

      520KB

    • memory/1840-10-0x000000000AB20000-0x000000000ABBC000-memory.dmp

      Filesize

      624KB

    • memory/1840-48-0x00000000746C0000-0x0000000074E70000-memory.dmp

      Filesize

      7.7MB

    • memory/1840-6-0x0000000005110000-0x000000000512E000-memory.dmp

      Filesize

      120KB

    • memory/1840-5-0x00000000746C0000-0x0000000074E70000-memory.dmp

      Filesize

      7.7MB

    • memory/1840-0-0x00000000746CE000-0x00000000746CF000-memory.dmp

      Filesize

      4KB

    • memory/1840-3-0x0000000004BB0000-0x0000000004C42000-memory.dmp

      Filesize

      584KB

    • memory/1840-2-0x0000000005160000-0x0000000005704000-memory.dmp

      Filesize

      5.6MB

    • memory/1840-1-0x0000000000080000-0x000000000016C000-memory.dmp

      Filesize

      944KB

    • memory/3240-82-0x00000000070C0000-0x00000000070DA000-memory.dmp

      Filesize

      104KB

    • memory/3240-24-0x00000000746C0000-0x0000000074E70000-memory.dmp

      Filesize

      7.7MB

    • memory/3240-78-0x0000000006F80000-0x0000000006F91000-memory.dmp

      Filesize

      68KB

    • memory/3240-45-0x00000000746C0000-0x0000000074E70000-memory.dmp

      Filesize

      7.7MB

    • memory/3240-80-0x0000000006FB0000-0x0000000006FBE000-memory.dmp

      Filesize

      56KB

    • memory/3240-81-0x0000000006FC0000-0x0000000006FD4000-memory.dmp

      Filesize

      80KB

    • memory/3240-73-0x0000000006C50000-0x0000000006CF3000-memory.dmp

      Filesize

      652KB

    • memory/3240-23-0x00000000746C0000-0x0000000074E70000-memory.dmp

      Filesize

      7.7MB

    • memory/3240-90-0x00000000746C0000-0x0000000074E70000-memory.dmp

      Filesize

      7.7MB

    • memory/3240-77-0x0000000007000000-0x0000000007096000-memory.dmp

      Filesize

      600KB

    • memory/3240-62-0x0000000006C20000-0x0000000006C3E000-memory.dmp

      Filesize

      120KB

    • memory/3240-51-0x0000000006BE0000-0x0000000006C12000-memory.dmp

      Filesize

      200KB

    • memory/3240-52-0x0000000074F20000-0x0000000074F6C000-memory.dmp

      Filesize

      304KB

    • memory/3756-19-0x00000000053F0000-0x0000000005412000-memory.dmp

      Filesize

      136KB

    • memory/3756-63-0x0000000074F20000-0x0000000074F6C000-memory.dmp

      Filesize

      304KB

    • memory/3756-50-0x0000000006260000-0x00000000062AC000-memory.dmp

      Filesize

      304KB

    • memory/3756-75-0x0000000006FB0000-0x0000000006FCA000-memory.dmp

      Filesize

      104KB

    • memory/3756-74-0x0000000007600000-0x0000000007C7A000-memory.dmp

      Filesize

      6.5MB

    • memory/3756-76-0x0000000007020000-0x000000000702A000-memory.dmp

      Filesize

      40KB

    • memory/3756-49-0x0000000005C70000-0x0000000005C8E000-memory.dmp

      Filesize

      120KB

    • memory/3756-35-0x0000000005680000-0x00000000059D4000-memory.dmp

      Filesize

      3.3MB

    • memory/3756-30-0x00000000746C0000-0x0000000074E70000-memory.dmp

      Filesize

      7.7MB

    • memory/3756-21-0x0000000005590000-0x00000000055F6000-memory.dmp

      Filesize

      408KB

    • memory/3756-22-0x0000000005600000-0x0000000005666000-memory.dmp

      Filesize

      408KB

    • memory/3756-18-0x00000000746C0000-0x0000000074E70000-memory.dmp

      Filesize

      7.7MB

    • memory/3756-83-0x00000000072D0000-0x00000000072D8000-memory.dmp

      Filesize

      32KB

    • memory/3756-86-0x00000000746C0000-0x0000000074E70000-memory.dmp

      Filesize

      7.7MB

    • memory/3756-17-0x00000000746C0000-0x0000000074E70000-memory.dmp

      Filesize

      7.7MB

    • memory/3756-16-0x0000000004D90000-0x00000000053B8000-memory.dmp

      Filesize

      6.2MB

    • memory/3756-15-0x00000000023A0000-0x00000000023D6000-memory.dmp

      Filesize

      216KB