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Analysis

  • max time kernel
    128s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/08/2023, 13:12

General

  • Target

    overdue invoice pdf.exe

  • Size

    847KB

  • MD5

    a3976a8131593cd5f257e1609cba021c

  • SHA1

    1e761268105bc1613d697d9941447c3241463029

  • SHA256

    0f350d7a72e30d6fa7234e953e127b426ffabb6960446a90a53d6c0dd6392138

  • SHA512

    d8b5c3b2d39b1fe89a5db1fc273527c163ebac5f2933799cc279b76def0eecd7e3047bb29b0b7c9feb6b6fe92ca8d302e52cd277da08f07f75f1676d0dac75eb

  • SSDEEP

    12288:LUVv25w+n42d1mbTzFgaJmv3xnPBtDPLd4o8wTrQ2lIC6swoeXGkDkNMw+gtYaIS:LdcBmvxLLFHIvtXGkDkSwvYmZf

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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).

  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\overdue invoice pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\overdue invoice pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1580
    • 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\overdue invoice pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3124
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\artlkRu.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3140
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\artlkRu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4D9E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2716
    • 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:4876

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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

    c1cdd9db27dab7d98b0404745f5a5ff6

    SHA1

    c5861d890ab4917e2a8ec6d1081a9666b4dbe42f

    SHA256

    a687b7a9a9d29ab84a0a0ddedbfc9fd81c1d1660fb8df7b1edadeeaeccb355a7

    SHA512

    d99ddec74f7addd2164fc7cba6bf1a8238b982fdfc84fefe2f348b343b9e346bf9a943fc4e30428610a0a4db94ed2cc1561a53af6f6db8890d1eb4c046d82686

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fjjclqy3.5el.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp4D9E.tmp

    Filesize

    1KB

    MD5

    068491d20326201106ebbaa583e30f4a

    SHA1

    912327f881a87e2fc6459a33750e63607b2edb58

    SHA256

    74d40d30aff028c028bd9c8a895b3e99657c2ef1483189e4362aeadf9bd652a3

    SHA512

    d083017b89e757baa4a4b7eac9d92f321805ff9aeb33ff0546580cf607bf4c7fc44ec5e0b9f96b381a456367446622f09658e079eddbdbfef2a4b9e29a3553dd

  • memory/1580-3-0x0000000004D40000-0x0000000004DD2000-memory.dmp

    Filesize

    584KB

  • memory/1580-5-0x0000000004E00000-0x0000000004E0A000-memory.dmp

    Filesize

    40KB

  • memory/1580-6-0x0000000004FC0000-0x000000000505C000-memory.dmp

    Filesize

    624KB

  • memory/1580-7-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-8-0x0000000004FB0000-0x0000000004FC0000-memory.dmp

    Filesize

    64KB

  • memory/1580-4-0x0000000004FB0000-0x0000000004FC0000-memory.dmp

    Filesize

    64KB

  • memory/1580-2-0x00000000052F0000-0x0000000005894000-memory.dmp

    Filesize

    5.6MB

  • memory/1580-0-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-44-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/1580-1-0x00000000001E0000-0x00000000002B8000-memory.dmp

    Filesize

    864KB

  • memory/3124-74-0x0000000007790000-0x0000000007E0A000-memory.dmp

    Filesize

    6.5MB

  • memory/3124-80-0x0000000007440000-0x0000000007448000-memory.dmp

    Filesize

    32KB

  • memory/3124-88-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/3124-13-0x0000000002510000-0x0000000002546000-memory.dmp

    Filesize

    216KB

  • memory/3124-22-0x0000000005710000-0x0000000005776000-memory.dmp

    Filesize

    408KB

  • memory/3124-14-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/3124-20-0x0000000002500000-0x0000000002510000-memory.dmp

    Filesize

    64KB

  • memory/3124-79-0x0000000007460000-0x000000000747A000-memory.dmp

    Filesize

    104KB

  • memory/3124-78-0x0000000007350000-0x000000000735E000-memory.dmp

    Filesize

    56KB

  • memory/3124-16-0x0000000004F60000-0x0000000005588000-memory.dmp

    Filesize

    6.2MB

  • memory/3124-77-0x00000000073A0000-0x0000000007436000-memory.dmp

    Filesize

    600KB

  • memory/3124-46-0x0000000005E20000-0x0000000005E3E000-memory.dmp

    Filesize

    120KB

  • memory/3124-48-0x0000000002500000-0x0000000002510000-memory.dmp

    Filesize

    64KB

  • memory/3124-49-0x000000007FDC0000-0x000000007FDD0000-memory.dmp

    Filesize

    64KB

  • memory/3124-50-0x0000000006E20000-0x0000000006E52000-memory.dmp

    Filesize

    200KB

  • memory/3124-51-0x0000000071860000-0x00000000718AC000-memory.dmp

    Filesize

    304KB

  • memory/3124-61-0x0000000006400000-0x000000000641E000-memory.dmp

    Filesize

    120KB

  • memory/3124-75-0x0000000007190000-0x000000000719A000-memory.dmp

    Filesize

    40KB

  • memory/3124-15-0x0000000002500000-0x0000000002510000-memory.dmp

    Filesize

    64KB

  • memory/3140-21-0x0000000004DF0000-0x0000000004E12000-memory.dmp

    Filesize

    136KB

  • memory/3140-73-0x00000000070B0000-0x00000000070CA000-memory.dmp

    Filesize

    104KB

  • memory/3140-62-0x000000007F4C0000-0x000000007F4D0000-memory.dmp

    Filesize

    64KB

  • memory/3140-18-0x00000000048D0000-0x00000000048E0000-memory.dmp

    Filesize

    64KB

  • memory/3140-17-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/3140-87-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/3140-23-0x0000000005760000-0x00000000057C6000-memory.dmp

    Filesize

    408KB

  • memory/3140-63-0x0000000071860000-0x00000000718AC000-memory.dmp

    Filesize

    304KB

  • memory/4876-45-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/4876-89-0x0000000075070000-0x0000000075820000-memory.dmp

    Filesize

    7.7MB

  • memory/4876-34-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4876-47-0x0000000004A20000-0x0000000004A30000-memory.dmp

    Filesize

    64KB

  • memory/4876-81-0x0000000005940000-0x0000000005990000-memory.dmp

    Filesize

    320KB

  • memory/4876-90-0x0000000004A20000-0x0000000004A30000-memory.dmp

    Filesize

    64KB