Analysis

  • max time kernel
    136s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/11/2024, 02:54

General

  • Target

    a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d.exe

  • Size

    758KB

  • MD5

    f3c67cd1bbb9c8a8bcb56ee97c5a7b27

  • SHA1

    ad3397267ada55bca8d547dbb93bc79f40d138cf

  • SHA256

    a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d

  • SHA512

    6bd165450a9007ce4e90a120455bb9ff5914e423e99266cdc854b91aaea9376c3d54f78ab2ee034597ac90de74462f9e9e8b74b598e3d5c3b5edb834df0f757e

  • SSDEEP

    12288:grOY+Ri3AgFdh1QW4s+HCBhKBSh4/wFgfyYVWmTr6bzoAlHJ35mkR:pQ3Ag/QzsjBgBShKagfJVtv63oArD

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7180778750:AAGcpZL53RI1C6DEr2Yp4lM3UKxKArXTZ4I/

Signatures

  • AgentTesla

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

  • Agenttesla family
  • 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.

  • 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).

  • 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 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d.exe
    "C:\Users\Admin\AppData\Local\Temp\a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d.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:2320
    • 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\a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5084
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EQVRGq.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4356
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EQVRGq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1C3D.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4708
    • C:\Users\Admin\AppData\Local\Temp\a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d.exe
      "C:\Users\Admin\AppData\Local\Temp\a36c66fb7fdfb2639cc0ccdeaeef4e6c1a1cd103ba76309ed32777b3f2ab069d.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3324

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

    118216f98effbad3250da112ee90a7a0

    SHA1

    1b84e0db5b9cfc7e82e38676d8bfe52619a37fda

    SHA256

    9c5fdb908d5c3edac9df87b49edfa511279c17b6f314d9a00c39c58e26b1fe25

    SHA512

    42843ae96505995a722a2046e2e93ca56dc5b2bfb65f79db60893b82e4e4f741b5461944e556c1a88d546fa7a8e043d2423168276acf75f007cdb19126b2727a

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_peng0djc.svi.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp1C3D.tmp

    Filesize

    1KB

    MD5

    6a1da50c47567830f1dc78c044d7c934

    SHA1

    368eed81fca05ce85605b5c81dcc144685adddee

    SHA256

    d3172cbc34e806ca5a0cae7497484a1a5325db937d25f8af647f9e5d0ec0add4

    SHA512

    f0baa2613736d0e099a5bd2d66e8302ff37e38c0e8cace829b5a6013441af535cb13b13c461e73d61bee45b5c8e17eb64836b47169587aa98ef4907d9242a96d

  • memory/2320-4-0x0000000004E60000-0x0000000004E6A000-memory.dmp

    Filesize

    40KB

  • memory/2320-5-0x0000000005100000-0x000000000519C000-memory.dmp

    Filesize

    624KB

  • memory/2320-6-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/2320-7-0x000000007474E000-0x000000007474F000-memory.dmp

    Filesize

    4KB

  • memory/2320-8-0x00000000050E0000-0x00000000050F2000-memory.dmp

    Filesize

    72KB

  • memory/2320-9-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/2320-10-0x0000000006500000-0x0000000006588000-memory.dmp

    Filesize

    544KB

  • memory/2320-0-0x000000007474E000-0x000000007474F000-memory.dmp

    Filesize

    4KB

  • memory/2320-37-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/2320-3-0x0000000004E70000-0x0000000004F02000-memory.dmp

    Filesize

    584KB

  • memory/2320-2-0x0000000005380000-0x0000000005924000-memory.dmp

    Filesize

    5.6MB

  • memory/2320-1-0x00000000004E0000-0x000000000059E000-memory.dmp

    Filesize

    760KB

  • memory/3324-89-0x0000000006440000-0x0000000006490000-memory.dmp

    Filesize

    320KB

  • memory/3324-21-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/4356-31-0x0000000005AB0000-0x0000000005B16000-memory.dmp

    Filesize

    408KB

  • memory/4356-32-0x0000000006210000-0x0000000006276000-memory.dmp

    Filesize

    408KB

  • memory/4356-36-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/4356-20-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/4356-88-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/4356-23-0x0000000005710000-0x0000000005732000-memory.dmp

    Filesize

    136KB

  • memory/4356-66-0x0000000070E10000-0x0000000070E5C000-memory.dmp

    Filesize

    304KB

  • memory/5084-15-0x00000000050A0000-0x00000000050D6000-memory.dmp

    Filesize

    216KB

  • memory/5084-49-0x0000000006BE0000-0x0000000006C2C000-memory.dmp

    Filesize

    304KB

  • memory/5084-48-0x0000000006640000-0x000000000665E000-memory.dmp

    Filesize

    120KB

  • memory/5084-61-0x0000000006C30000-0x0000000006C4E000-memory.dmp

    Filesize

    120KB

  • memory/5084-51-0x0000000070E10000-0x0000000070E5C000-memory.dmp

    Filesize

    304KB

  • memory/5084-50-0x0000000007640000-0x0000000007672000-memory.dmp

    Filesize

    200KB

  • memory/5084-62-0x0000000007880000-0x0000000007923000-memory.dmp

    Filesize

    652KB

  • memory/5084-63-0x0000000007FC0000-0x000000000863A000-memory.dmp

    Filesize

    6.5MB

  • memory/5084-64-0x0000000007980000-0x000000000799A000-memory.dmp

    Filesize

    104KB

  • memory/5084-65-0x00000000079F0000-0x00000000079FA000-memory.dmp

    Filesize

    40KB

  • memory/5084-29-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/5084-76-0x0000000007C00000-0x0000000007C96000-memory.dmp

    Filesize

    600KB

  • memory/5084-77-0x0000000007B80000-0x0000000007B91000-memory.dmp

    Filesize

    68KB

  • memory/5084-78-0x0000000007BB0000-0x0000000007BBE000-memory.dmp

    Filesize

    56KB

  • memory/5084-79-0x0000000007BC0000-0x0000000007BD4000-memory.dmp

    Filesize

    80KB

  • memory/5084-80-0x0000000007CC0000-0x0000000007CDA000-memory.dmp

    Filesize

    104KB

  • memory/5084-81-0x0000000007CA0000-0x0000000007CA8000-memory.dmp

    Filesize

    32KB

  • memory/5084-47-0x0000000005EC0000-0x0000000006214000-memory.dmp

    Filesize

    3.3MB

  • memory/5084-18-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/5084-17-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/5084-87-0x0000000074740000-0x0000000074EF0000-memory.dmp

    Filesize

    7.7MB

  • memory/5084-16-0x0000000005890000-0x0000000005EB8000-memory.dmp

    Filesize

    6.2MB