Analysis

  • max time kernel
    144s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-12-2023 14:39

General

  • Target

    attached final docs.exe

  • Size

    672KB

  • MD5

    05bdbf0f45e344ba71847553e4900da0

  • SHA1

    108de8169c3e3affadabb29a3da9d953efb79c87

  • SHA256

    7f382cc5928a8adf09033a4412af83f103fe25384f7fb39343344432fc71f8c1

  • SHA512

    922c275dd6ae6ed21a0a9789343d1848b739ff0dc5d4f0db4f8722b3b5804e0f9061d4ad1a22a7aef83044ed9fa9adbae33014b2df743fa52f364f9f57bd0198

  • SSDEEP

    12288:2S3IU8S6eUd+qKo5v8XCQNhtFJXuxgOwZ0GPkqxEvYnfgAJ7pArHaBtUzefE:2IItSAd+qKo96vNxZMeA0tHE

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 1 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • 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 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\attached final docs.exe
    "C:\Users\Admin\AppData\Local\Temp\attached final docs.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3400
    • 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\attached final docs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:452
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TbuoHeok.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3808
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TbuoHeok" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD8EB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4720
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
        PID:5072
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2772
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2772 -s 1412
          3⤵
          • Program crash
          PID:4652
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2772 -ip 2772
      1⤵
        PID:4748

      Network

      MITRE ATT&CK Enterprise v15

      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

        98cb605f49f3a421fad46a6dfdcde147

        SHA1

        ca3d8275557521baff765bcb5f418df9e66d070e

        SHA256

        8ce0c173229ab8070548680bf40553e7289740c3c48a1518d4d7a9be4e25ca1f

        SHA512

        28ba60cc28405383a15f6ce9798c34cd20311365e31936f9d5971a48c56f3ab5e6cd45761b8ad9854d735abbcb3da3e73f23b81c99c5a2e515fabf3124f48544

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lxqapczi.fav.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmpD8EB.tmp

        Filesize

        1KB

        MD5

        2b2f5efd1648a492b414c7bf2220aed2

        SHA1

        2677e485b3d919bedbab03947a019898a850bbda

        SHA256

        33cfb1a04ff37ecac1550c523bf6264d044ce962d75707e0c633f906a6f1fbce

        SHA512

        a13d05c965efe7b542f2815cc392827c576eb79bf307bdbe4bb10d52d99ae62036ffc32165abd190ca5c0aecb52132e88cb0f5ae7e77b018fbc39250ea450cf5

      • memory/452-70-0x0000000006D50000-0x0000000006D6E000-memory.dmp

        Filesize

        120KB

      • memory/452-17-0x0000000002EB0000-0x0000000002EE6000-memory.dmp

        Filesize

        216KB

      • memory/452-85-0x0000000007D50000-0x0000000007DE6000-memory.dmp

        Filesize

        600KB

      • memory/452-83-0x0000000007AD0000-0x0000000007AEA000-memory.dmp

        Filesize

        104KB

      • memory/452-82-0x0000000008110000-0x000000000878A000-memory.dmp

        Filesize

        6.5MB

      • memory/452-57-0x0000000007780000-0x00000000077B2000-memory.dmp

        Filesize

        200KB

      • memory/452-26-0x00000000057E0000-0x0000000005802000-memory.dmp

        Filesize

        136KB

      • memory/452-60-0x0000000071630000-0x000000007167C000-memory.dmp

        Filesize

        304KB

      • memory/452-56-0x0000000002E60000-0x0000000002E70000-memory.dmp

        Filesize

        64KB

      • memory/452-86-0x0000000007CD0000-0x0000000007CE1000-memory.dmp

        Filesize

        68KB

      • memory/452-18-0x0000000074F60000-0x0000000075710000-memory.dmp

        Filesize

        7.7MB

      • memory/452-19-0x0000000002E60000-0x0000000002E70000-memory.dmp

        Filesize

        64KB

      • memory/452-20-0x0000000002E60000-0x0000000002E70000-memory.dmp

        Filesize

        64KB

      • memory/452-22-0x00000000058A0000-0x0000000005EC8000-memory.dmp

        Filesize

        6.2MB

      • memory/452-54-0x0000000006810000-0x000000000685C000-memory.dmp

        Filesize

        304KB

      • memory/452-53-0x00000000067C0000-0x00000000067DE000-memory.dmp

        Filesize

        120KB

      • memory/452-90-0x0000000007DF0000-0x0000000007DF8000-memory.dmp

        Filesize

        32KB

      • memory/452-98-0x0000000074F60000-0x0000000075710000-memory.dmp

        Filesize

        7.7MB

      • memory/2772-34-0x0000000074F60000-0x0000000075710000-memory.dmp

        Filesize

        7.7MB

      • memory/2772-52-0x0000000002930000-0x0000000002940000-memory.dmp

        Filesize

        64KB

      • memory/2772-27-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/2772-91-0x0000000074F60000-0x0000000075710000-memory.dmp

        Filesize

        7.7MB

      • memory/3400-2-0x0000000005580000-0x0000000005B24000-memory.dmp

        Filesize

        5.6MB

      • memory/3400-12-0x0000000004E80000-0x0000000004E90000-memory.dmp

        Filesize

        64KB

      • memory/3400-41-0x0000000074F60000-0x0000000075710000-memory.dmp

        Filesize

        7.7MB

      • memory/3400-0-0x0000000000480000-0x000000000052E000-memory.dmp

        Filesize

        696KB

      • memory/3400-3-0x0000000004F00000-0x0000000004F92000-memory.dmp

        Filesize

        584KB

      • memory/3400-1-0x0000000074F60000-0x0000000075710000-memory.dmp

        Filesize

        7.7MB

      • memory/3400-4-0x0000000004E80000-0x0000000004E90000-memory.dmp

        Filesize

        64KB

      • memory/3400-9-0x00000000089F0000-0x0000000008A6C000-memory.dmp

        Filesize

        496KB

      • memory/3400-5-0x0000000004EF0000-0x0000000004EFA000-memory.dmp

        Filesize

        40KB

      • memory/3400-11-0x0000000074F60000-0x0000000075710000-memory.dmp

        Filesize

        7.7MB

      • memory/3400-6-0x0000000005140000-0x0000000005158000-memory.dmp

        Filesize

        96KB

      • memory/3400-10-0x00000000075A0000-0x000000000763C000-memory.dmp

        Filesize

        624KB

      • memory/3400-7-0x0000000005170000-0x0000000005178000-memory.dmp

        Filesize

        32KB

      • memory/3400-8-0x0000000005180000-0x000000000518A000-memory.dmp

        Filesize

        40KB

      • memory/3808-58-0x000000007F1D0000-0x000000007F1E0000-memory.dmp

        Filesize

        64KB

      • memory/3808-30-0x00000000056B0000-0x0000000005716000-memory.dmp

        Filesize

        408KB

      • memory/3808-59-0x0000000071630000-0x000000007167C000-memory.dmp

        Filesize

        304KB

      • memory/3808-84-0x0000000007860000-0x000000000786A000-memory.dmp

        Filesize

        40KB

      • memory/3808-80-0x00000000074D0000-0x0000000007573000-memory.dmp

        Filesize

        652KB

      • memory/3808-55-0x00000000051C0000-0x00000000051D0000-memory.dmp

        Filesize

        64KB

      • memory/3808-87-0x0000000007A20000-0x0000000007A2E000-memory.dmp

        Filesize

        56KB

      • memory/3808-88-0x0000000007A30000-0x0000000007A44000-memory.dmp

        Filesize

        80KB

      • memory/3808-89-0x0000000007B30000-0x0000000007B4A000-memory.dmp

        Filesize

        104KB

      • memory/3808-21-0x0000000074F60000-0x0000000075710000-memory.dmp

        Filesize

        7.7MB

      • memory/3808-23-0x00000000051C0000-0x00000000051D0000-memory.dmp

        Filesize

        64KB

      • memory/3808-51-0x0000000005F30000-0x0000000006284000-memory.dmp

        Filesize

        3.3MB

      • memory/3808-35-0x0000000005720000-0x0000000005786000-memory.dmp

        Filesize

        408KB

      • memory/3808-24-0x00000000051C0000-0x00000000051D0000-memory.dmp

        Filesize

        64KB

      • memory/3808-97-0x0000000074F60000-0x0000000075710000-memory.dmp

        Filesize

        7.7MB