Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-03-2024 02:29

General

  • Target

    9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf.exe

  • Size

    668KB

  • MD5

    503cdfe56819696af4c1336045ff6ca7

  • SHA1

    b44c671486cd3f5341ebe42567d9d5c7abadf079

  • SHA256

    9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf

  • SHA512

    6fdf9005c2e22c85a6cb1a2aa72fc53a3e53128b66695d79ed3825e85d04fb7ca15197c20a09d987e4c44309a30b766e5b2f604455b7faa7106a314a02686072

  • SSDEEP

    12288:9d1JsJ6SSR1Sh2iNwIHLgjseXBEOPETAHEP8PWuuDpqGTTrvPWZHOQ1S:9d1w1GVjseqaNkPCu4WXXAd

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects executables packed with SmartAssembly 1 IoCs
  • 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 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf.exe
    "C:\Users\Admin\AppData\Local\Temp\9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4056
    • 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\9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3472
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OJDIQaIA.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:668
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OJDIQaIA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8491.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:5108
    • C:\Users\Admin\AppData\Local\Temp\9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf.exe
      "C:\Users\Admin\AppData\Local\Temp\9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf.exe"
      2⤵
        PID:4900
      • C:\Users\Admin\AppData\Local\Temp\9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf.exe
        "C:\Users\Admin\AppData\Local\Temp\9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf.exe"
        2⤵
          PID:4888
        • C:\Users\Admin\AppData\Local\Temp\9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf.exe
          "C:\Users\Admin\AppData\Local\Temp\9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf.exe"
          2⤵
            PID:3264
          • C:\Users\Admin\AppData\Local\Temp\9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf.exe
            "C:\Users\Admin\AppData\Local\Temp\9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf.exe"
            2⤵
            • Accesses Microsoft Outlook profiles
            • Suspicious use of AdjustPrivilegeToken
            • outlook_office_path
            • outlook_win_path
            PID:3204

        Network

        MITRE ATT&CK Matrix ATT&CK v13

        Execution

        Scheduled Task/Job

        1
        T1053

        Persistence

        Scheduled Task/Job

        1
        T1053

        Privilege Escalation

        Scheduled Task/Job

        1
        T1053

        Credential Access

        Unsecured Credentials

        4
        T1552

        Credentials In Files

        3
        T1552.001

        Credentials in Registry

        1
        T1552.002

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        Collection

        Data from Local System

        4
        T1005

        Email Collection

        1
        T1114

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\9a71fbe977c8db9b96f804494901b49117db817bce171818140629a345b7eeaf.exe.log
          Filesize

          1KB

          MD5

          8ec831f3e3a3f77e4a7b9cd32b48384c

          SHA1

          d83f09fd87c5bd86e045873c231c14836e76a05c

          SHA256

          7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

          SHA512

          26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

        • 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

          52b07f3a9e9815bf079f9a54ddfb802e

          SHA1

          68cbbc6755ffe3afb6f1329a91c36c2bf6046a41

          SHA256

          0d89c1df01a1c4dbf500bbc68933aa79c595d465c930979407b63408d25e85a1

          SHA512

          674ffbb368e0f84d78eb939716e6ebe4a7f5c646aa94abda87edc1128b0f34e1aabfdf314652b1300ba9eb92b5bce4c0cc5106f75f3442c5bb8892ec0456fc2b

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wmp5c4jh.11u.ps1
          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\tmp8491.tmp
          Filesize

          1KB

          MD5

          41c3167af0fa3256f6a88914eaa95c43

          SHA1

          21178b326d7bd478009299b227ea3eae3af0c24f

          SHA256

          6c6b944d4edd8f3aa4a4871ce0e14075d4c469106b84e90a4fd0441248f76af0

          SHA512

          c526110777cad0abdd830874d4d10a70912c48fa702e7b48f75b55691a458d13601e603f99bf25c95f45b514f9b80341e248096782bed8fcfb30ef619c13acea

        • memory/668-81-0x0000000007470000-0x000000000748A000-memory.dmp
          Filesize

          104KB

        • memory/668-77-0x0000000007330000-0x00000000073D3000-memory.dmp
          Filesize

          652KB

        • memory/668-25-0x0000000001030000-0x0000000001040000-memory.dmp
          Filesize

          64KB

        • memory/668-88-0x0000000007790000-0x0000000007798000-memory.dmp
          Filesize

          32KB

        • memory/668-86-0x00000000076B0000-0x00000000076C4000-memory.dmp
          Filesize

          80KB

        • memory/668-84-0x0000000007670000-0x0000000007681000-memory.dmp
          Filesize

          68KB

        • memory/668-82-0x00000000074E0000-0x00000000074EA000-memory.dmp
          Filesize

          40KB

        • memory/668-23-0x0000000001030000-0x0000000001040000-memory.dmp
          Filesize

          64KB

        • memory/668-79-0x0000000001030000-0x0000000001040000-memory.dmp
          Filesize

          64KB

        • memory/668-97-0x0000000074D20000-0x00000000754D0000-memory.dmp
          Filesize

          7.7MB

        • memory/668-56-0x00000000714D0000-0x000000007151C000-memory.dmp
          Filesize

          304KB

        • memory/668-19-0x0000000074D20000-0x00000000754D0000-memory.dmp
          Filesize

          7.7MB

        • memory/3204-98-0x0000000074D20000-0x00000000754D0000-memory.dmp
          Filesize

          7.7MB

        • memory/3204-95-0x00000000068C0000-0x0000000006A82000-memory.dmp
          Filesize

          1.8MB

        • memory/3204-50-0x00000000053D0000-0x00000000053E0000-memory.dmp
          Filesize

          64KB

        • memory/3204-48-0x0000000074D20000-0x00000000754D0000-memory.dmp
          Filesize

          7.7MB

        • memory/3204-89-0x00000000066A0000-0x00000000066F0000-memory.dmp
          Filesize

          320KB

        • memory/3204-99-0x00000000053D0000-0x00000000053E0000-memory.dmp
          Filesize

          64KB

        • memory/3204-45-0x0000000000400000-0x0000000000430000-memory.dmp
          Filesize

          192KB

        • memory/3472-51-0x0000000006140000-0x000000000615E000-memory.dmp
          Filesize

          120KB

        • memory/3472-80-0x0000000007AD0000-0x000000000814A000-memory.dmp
          Filesize

          6.5MB

        • memory/3472-31-0x0000000005B70000-0x0000000005EC4000-memory.dmp
          Filesize

          3.3MB

        • memory/3472-96-0x0000000074D20000-0x00000000754D0000-memory.dmp
          Filesize

          7.7MB

        • memory/3472-22-0x0000000005A90000-0x0000000005AF6000-memory.dmp
          Filesize

          408KB

        • memory/3472-87-0x00000000077D0000-0x00000000077EA000-memory.dmp
          Filesize

          104KB

        • memory/3472-52-0x0000000006190000-0x00000000061DC000-memory.dmp
          Filesize

          304KB

        • memory/3472-53-0x0000000007110000-0x0000000007142000-memory.dmp
          Filesize

          200KB

        • memory/3472-54-0x000000007F8C0000-0x000000007F8D0000-memory.dmp
          Filesize

          64KB

        • memory/3472-55-0x00000000714D0000-0x000000007151C000-memory.dmp
          Filesize

          304KB

        • memory/3472-21-0x00000000052A0000-0x00000000052C2000-memory.dmp
          Filesize

          136KB

        • memory/3472-66-0x0000000006750000-0x000000000676E000-memory.dmp
          Filesize

          120KB

        • memory/3472-76-0x00000000029E0000-0x00000000029F0000-memory.dmp
          Filesize

          64KB

        • memory/3472-17-0x00000000029E0000-0x00000000029F0000-memory.dmp
          Filesize

          64KB

        • memory/3472-78-0x00000000029E0000-0x00000000029F0000-memory.dmp
          Filesize

          64KB

        • memory/3472-18-0x00000000053B0000-0x00000000059D8000-memory.dmp
          Filesize

          6.2MB

        • memory/3472-16-0x00000000029E0000-0x00000000029F0000-memory.dmp
          Filesize

          64KB

        • memory/3472-24-0x0000000005B00000-0x0000000005B66000-memory.dmp
          Filesize

          408KB

        • memory/3472-14-0x0000000002860000-0x0000000002896000-memory.dmp
          Filesize

          216KB

        • memory/3472-83-0x0000000007710000-0x00000000077A6000-memory.dmp
          Filesize

          600KB

        • memory/3472-15-0x0000000074D20000-0x00000000754D0000-memory.dmp
          Filesize

          7.7MB

        • memory/3472-85-0x00000000076C0000-0x00000000076CE000-memory.dmp
          Filesize

          56KB

        • memory/4056-9-0x0000000006450000-0x00000000064C2000-memory.dmp
          Filesize

          456KB

        • memory/4056-1-0x0000000074D20000-0x00000000754D0000-memory.dmp
          Filesize

          7.7MB

        • memory/4056-8-0x00000000051D0000-0x00000000051DC000-memory.dmp
          Filesize

          48KB

        • memory/4056-7-0x00000000051C0000-0x00000000051D2000-memory.dmp
          Filesize

          72KB

        • memory/4056-6-0x0000000004F70000-0x000000000500C000-memory.dmp
          Filesize

          624KB

        • memory/4056-5-0x0000000004E90000-0x0000000004E9A000-memory.dmp
          Filesize

          40KB

        • memory/4056-49-0x0000000074D20000-0x00000000754D0000-memory.dmp
          Filesize

          7.7MB

        • memory/4056-4-0x0000000004C30000-0x0000000004C40000-memory.dmp
          Filesize

          64KB

        • memory/4056-3-0x0000000004D00000-0x0000000004D92000-memory.dmp
          Filesize

          584KB

        • memory/4056-2-0x0000000005210000-0x00000000057B4000-memory.dmp
          Filesize

          5.6MB

        • memory/4056-0-0x0000000000370000-0x000000000041A000-memory.dmp
          Filesize

          680KB