Analysis

  • max time kernel
    90s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/02/2023, 11:30

General

  • Target

    1f2cb6c9e03a40c8192769aa22098b5e.exe

  • Size

    952KB

  • MD5

    1f2cb6c9e03a40c8192769aa22098b5e

  • SHA1

    671df2a28df26142a5c01dc9424e2c3e6b1cd6a5

  • SHA256

    d47f545cf0b1dc2ad2418cbba327adad7ac578feebb219fa9084b7ea55ef2e79

  • SHA512

    c93b99cb2f859bb723a1a1599f2a4711520bac1cc131fea07abe84bc4f04339e245edbd6c7e43ea2e68563678e7207358b38182a2fe7525b425ceda75b92f0c7

  • SSDEEP

    12288:E6nffydd+FLAu1PD6Sww1xjOKQPY/DXUabhEXsx68eEQmYc9XVmTdcMEBAUZMybW:E6nnyaueDyKQPSDh8E0cRPMXyUS5Q

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5693068931:AAGSQSNIWDJM1FzeZVNHS020I9wVBrQdkRM/

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
  • Looks up external IP address via web service 2 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). Likely ransomware behaviour.

  • 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 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1f2cb6c9e03a40c8192769aa22098b5e.exe
    "C:\Users\Admin\AppData\Local\Temp\1f2cb6c9e03a40c8192769aa22098b5e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3016
    • 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\1f2cb6c9e03a40c8192769aa22098b5e.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4312
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\csaumDXDY.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5060
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\csaumDXDY" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA671.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2300
    • C:\Users\Admin\AppData\Local\Temp\1f2cb6c9e03a40c8192769aa22098b5e.exe
      "C:\Users\Admin\AppData\Local\Temp\1f2cb6c9e03a40c8192769aa22098b5e.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3380

Network

        MITRE ATT&CK Enterprise v6

        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

          335c46dc530f5ee4db16c1408d7e37ca

          SHA1

          aac9fbad9ed20b72d8141a14d920dae2427705d1

          SHA256

          0766c885dba68805923a649b05adb6e390ed9a20dcca0c08d4a73fd3f80c64d7

          SHA512

          58c2ca84c68f26cb46b5e4c79897286a4b1efbc7b0f4d93423be0e5dc0580ce56a679568e7131e47427c89bda4323d56295364588a507a85cdc7f733ae47d629

        • C:\Users\Admin\AppData\Local\Temp\tmpA671.tmp

          Filesize

          1KB

          MD5

          98a30b5da11a676b271ea7b0df172187

          SHA1

          c0e4da90c53846f858e0a46744da4a73c321947a

          SHA256

          3b54f09f83411231ef4867a70ec4d8c0229e7fe87b4db13067a32ce39ab1b3fc

          SHA512

          52f879d9261de6d5b828d41a66a9fc926a681ab3836975d993e7ba7033db9105d9da6220ba0182fe779a014c17fca2ff0acd320a26707c1f98c41d2a585f3b49

        • memory/3016-135-0x0000000005A50000-0x0000000005A5A000-memory.dmp

          Filesize

          40KB

        • memory/3016-136-0x0000000008450000-0x00000000084EC000-memory.dmp

          Filesize

          624KB

        • memory/3016-134-0x0000000005AC0000-0x0000000005B52000-memory.dmp

          Filesize

          584KB

        • memory/3016-132-0x0000000000FB0000-0x00000000010A4000-memory.dmp

          Filesize

          976KB

        • memory/3016-133-0x0000000006070000-0x0000000006614000-memory.dmp

          Filesize

          5.6MB

        • memory/3380-163-0x0000000006ED0000-0x0000000007092000-memory.dmp

          Filesize

          1.8MB

        • memory/3380-162-0x0000000006B20000-0x0000000006B70000-memory.dmp

          Filesize

          320KB

        • memory/3380-147-0x0000000000400000-0x0000000000430000-memory.dmp

          Filesize

          192KB

        • memory/4312-148-0x0000000006400000-0x000000000641E000-memory.dmp

          Filesize

          120KB

        • memory/4312-154-0x0000000007700000-0x000000000771A000-memory.dmp

          Filesize

          104KB

        • memory/4312-143-0x0000000005CC0000-0x0000000005D26000-memory.dmp

          Filesize

          408KB

        • memory/4312-142-0x0000000005420000-0x0000000005442000-memory.dmp

          Filesize

          136KB

        • memory/4312-150-0x0000000071720000-0x000000007176C000-memory.dmp

          Filesize

          304KB

        • memory/4312-138-0x0000000004E30000-0x0000000004E66000-memory.dmp

          Filesize

          216KB

        • memory/4312-152-0x00000000069C0000-0x00000000069DE000-memory.dmp

          Filesize

          120KB

        • memory/4312-141-0x0000000005520000-0x0000000005B48000-memory.dmp

          Filesize

          6.2MB

        • memory/4312-155-0x0000000007770000-0x000000000777A000-memory.dmp

          Filesize

          40KB

        • memory/5060-144-0x0000000005540000-0x00000000055A6000-memory.dmp

          Filesize

          408KB

        • memory/5060-156-0x00000000078A0000-0x0000000007936000-memory.dmp

          Filesize

          600KB

        • memory/5060-157-0x0000000007850000-0x000000000785E000-memory.dmp

          Filesize

          56KB

        • memory/5060-158-0x0000000007960000-0x000000000797A000-memory.dmp

          Filesize

          104KB

        • memory/5060-159-0x0000000007940000-0x0000000007948000-memory.dmp

          Filesize

          32KB

        • memory/5060-153-0x0000000007C70000-0x00000000082EA000-memory.dmp

          Filesize

          6.5MB

        • memory/5060-151-0x0000000071720000-0x000000007176C000-memory.dmp

          Filesize

          304KB

        • memory/5060-149-0x00000000072E0000-0x0000000007312000-memory.dmp

          Filesize

          200KB