Analysis

  • max time kernel
    150s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2024, 01:03

General

  • Target

    f1c83f4377767314f48fde9e93891d278b2631a0c489148047c4c0822a9fb763.exe

  • Size

    888KB

  • MD5

    dfe7fa7881d643dc97eaa8f0e7478f28

  • SHA1

    b3e7065ed4191388f231db06b4b115ca7b64cd2f

  • SHA256

    f1c83f4377767314f48fde9e93891d278b2631a0c489148047c4c0822a9fb763

  • SHA512

    425ed492945053bfae55675da577aa3a4038ea337948c3f41a78b9c52602b6d5f48c28f1a18fdcc1f71638906461bc446736e4e606756f85bcc16d22b7a4182f

  • SSDEEP

    12288:Y7zhNdyvUIZbV/O1bJGOD0CInmWC4H9bz97tk5J6f0uZzn9zF:Y7MvDB/l00CInCwvBO6NZz9z

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.vistakencana.com.my
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    m33R3bus!

Signatures

  • AgentTesla

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

  • Agenttesla family
  • AgentTesla payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

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

  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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 6 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f1c83f4377767314f48fde9e93891d278b2631a0c489148047c4c0822a9fb763.exe
    "C:\Users\Admin\AppData\Local\Temp\f1c83f4377767314f48fde9e93891d278b2631a0c489148047c4c0822a9fb763.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2532
    • 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\f1c83f4377767314f48fde9e93891d278b2631a0c489148047c4c0822a9fb763.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1444
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sELElpWT.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4424
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sELElpWT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9EDB.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1304
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\sELElpWT.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3044
    • C:\Users\Admin\AppData\Local\Temp\f1c83f4377767314f48fde9e93891d278b2631a0c489148047c4c0822a9fb763.exe
      "C:\Users\Admin\AppData\Local\Temp\f1c83f4377767314f48fde9e93891d278b2631a0c489148047c4c0822a9fb763.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:828

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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

    822d6307eedde1b8e954bcbb7d29da04

    SHA1

    2491a050f9d811a950a00c1c94336a9638a40f71

    SHA256

    a2f5b6a37fa71fdbb658471079112b6b90c6cce627510e2650428110491b029a

    SHA512

    1aef272328eb97570ff14bb36145b800b532d0c4d696660a72b287d3da3083f3a9d902976380e1c89620e7af5104f1f14dbed325f60a6a07fb60983653c2d504

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

    Filesize

    18KB

    MD5

    afcdffe750f167b6fe65e3f26865dafa

    SHA1

    e3b1f7893d76816ba80f5d049cb51ec7ac71b18a

    SHA256

    29177cda39ea61e37cfdab68ae57c04ca6cee110830e67b37dfb2c2c286348b6

    SHA512

    79590a4d5990628a346613d2c858e1af70d67247efa196378ba940ecb56b01cf50bafa4fadd6a837eb65abb7c7be4ed0a3d50bfafeda9d85706d7e7173165963

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z4foo34g.ygd.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp9EDB.tmp

    Filesize

    1KB

    MD5

    e88c522c628074f775a504fdb28f03cb

    SHA1

    d5dfb0e6da54a02e82c327d1b06e04b30d8d1254

    SHA256

    fa4776606e5e231196d7d4eb677eba1ce5a154289c1e75e12dc3ce40aad6aa5c

    SHA512

    b7a4e938b729fbc7502215054a76b7f7b122ebc1554846888f88e1d9350662b8d8bc00b15bcf2de6d10b661dd3e1a2c382dcd6f04e8e7620975d490a5bbbd71c

  • memory/828-109-0x00000000050D0000-0x00000000050E8000-memory.dmp

    Filesize

    96KB

  • memory/828-35-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1444-93-0x00000000074F0000-0x00000000074FA000-memory.dmp

    Filesize

    40KB

  • memory/1444-14-0x0000000002820000-0x0000000002856000-memory.dmp

    Filesize

    216KB

  • memory/1444-97-0x00000000076B0000-0x00000000076BE000-memory.dmp

    Filesize

    56KB

  • memory/1444-99-0x00000000077C0000-0x00000000077DA000-memory.dmp

    Filesize

    104KB

  • memory/1444-91-0x0000000007AC0000-0x000000000813A000-memory.dmp

    Filesize

    6.5MB

  • memory/1444-81-0x00000000753E0000-0x000000007542C000-memory.dmp

    Filesize

    304KB

  • memory/1444-100-0x00000000077A0000-0x00000000077A8000-memory.dmp

    Filesize

    32KB

  • memory/1444-98-0x00000000076C0000-0x00000000076D4000-memory.dmp

    Filesize

    80KB

  • memory/1444-16-0x00000000054A0000-0x0000000005AC8000-memory.dmp

    Filesize

    6.2MB

  • memory/1444-15-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1444-17-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1444-18-0x0000000005080000-0x00000000050A2000-memory.dmp

    Filesize

    136KB

  • memory/1444-23-0x0000000005320000-0x0000000005386000-memory.dmp

    Filesize

    408KB

  • memory/1444-108-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1444-34-0x0000000005BB0000-0x0000000005F04000-memory.dmp

    Filesize

    3.3MB

  • memory/2532-46-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2532-7-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2532-0-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

    Filesize

    4KB

  • memory/2532-1-0x00000000002B0000-0x0000000000392000-memory.dmp

    Filesize

    904KB

  • memory/2532-2-0x0000000004BD0000-0x0000000004C6C000-memory.dmp

    Filesize

    624KB

  • memory/2532-3-0x0000000005280000-0x0000000005824000-memory.dmp

    Filesize

    5.6MB

  • memory/2532-4-0x0000000004D70000-0x0000000004E02000-memory.dmp

    Filesize

    584KB

  • memory/2532-5-0x0000000004CF0000-0x0000000004CFA000-memory.dmp

    Filesize

    40KB

  • memory/2532-6-0x0000000004F50000-0x0000000004FA6000-memory.dmp

    Filesize

    344KB

  • memory/2532-13-0x0000000006860000-0x00000000068C6000-memory.dmp

    Filesize

    408KB

  • memory/2532-12-0x0000000000AB0000-0x0000000000AEE000-memory.dmp

    Filesize

    248KB

  • memory/2532-11-0x00000000066A0000-0x000000000671A000-memory.dmp

    Filesize

    488KB

  • memory/2532-8-0x0000000005050000-0x0000000005072000-memory.dmp

    Filesize

    136KB

  • memory/2532-10-0x0000000074B30000-0x00000000752E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2532-9-0x0000000074B3E000-0x0000000074B3F000-memory.dmp

    Filesize

    4KB

  • memory/3044-95-0x0000000007820000-0x0000000007831000-memory.dmp

    Filesize

    68KB

  • memory/3044-94-0x00000000078A0000-0x0000000007936000-memory.dmp

    Filesize

    600KB

  • memory/3044-96-0x0000000007850000-0x000000000785E000-memory.dmp

    Filesize

    56KB

  • memory/3044-71-0x00000000753E0000-0x000000007542C000-memory.dmp

    Filesize

    304KB

  • memory/4424-92-0x0000000007B70000-0x0000000007B8A000-memory.dmp

    Filesize

    104KB

  • memory/4424-70-0x0000000007A60000-0x0000000007B03000-memory.dmp

    Filesize

    652KB

  • memory/4424-69-0x0000000007A00000-0x0000000007A1E000-memory.dmp

    Filesize

    120KB

  • memory/4424-58-0x0000000006E10000-0x0000000006E42000-memory.dmp

    Filesize

    200KB

  • memory/4424-59-0x00000000753E0000-0x000000007542C000-memory.dmp

    Filesize

    304KB

  • memory/4424-48-0x0000000006890000-0x00000000068DC000-memory.dmp

    Filesize

    304KB

  • memory/4424-47-0x0000000006840000-0x000000000685E000-memory.dmp

    Filesize

    120KB