Analysis

  • max time kernel
    117s
  • max time network
    208s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-09-2024 03:55

General

  • Target

    MV TBN CALL PORT FOR LOADING COAL_pdf.exe

  • Size

    641KB

  • MD5

    2546f92a54b6f32407cb0d86c91b330c

  • SHA1

    3b2eeddcae26a3efbb431fc4863e4765ff556392

  • SHA256

    c4152d490edfcc1620c4579bc9e9455b8cb71cb9efecb38140a22385ea95a9ce

  • SHA512

    df3cdd886e0ac5c315e47b352030313d189d51d4d959977421e443cf6fffd02df108319b5b277c202567caa86327803e1aaf9830d89c3bbc8ee7015703f28ea4

  • SSDEEP

    12288:Tbx119VXiwDIgVFyDu7iKXy2pGL3v5GzD1uIOUgQX14JE9xje50VwXH:BD95lGb5GzDL1pg06

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://cash4cars.nz
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    -[([pqM~nGA4

Signatures

  • AgentTesla

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

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MV TBN CALL PORT FOR LOADING COAL_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\MV TBN CALL PORT FOR LOADING COAL_pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4056
    • 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\MV TBN CALL PORT FOR LOADING COAL_pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4200
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\dpRbrdOWQX.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4004
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dpRbrdOWQX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD60D.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3076
    • C:\Users\Admin\AppData\Local\Temp\MV TBN CALL PORT FOR LOADING COAL_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\MV TBN CALL PORT FOR LOADING COAL_pdf.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3104

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

    e2cbdf9460cda2904a909b85cd9997ad

    SHA1

    ee7175a15e71bd049767d514f346d7afe8fcae8b

    SHA256

    07045753505eca3909453e62e9cccdcf4f4c109ba5b98c95fbde0729075a2529

    SHA512

    7b8cb606977d1c18d5134e3542473859e5135874fef0e2754d08a4e34b96e38914ed01211546d11409d63c955766d37259639bc48371b3a0d10147b8dfe6377d

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ct2lyunx.mqm.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpD60D.tmp

    Filesize

    1KB

    MD5

    a0a22d2e31f9d6b7ea5957e6316a9e7f

    SHA1

    f6b5d6a8deb0a8b66776f7168a80a60a6cb5401f

    SHA256

    6b049c5944fee99249c9fc5b25f4334d62bfa24cda6a0d159a5ebea97aa7a6ae

    SHA512

    e6ce6ec3ba74c0d992259abeb5533dea577a5b52ed8367079ecf76767d04ef00ce1fac75ed43707066bc7580634a7175968e537220aac7c4aaccaa73c47ece44

  • memory/3104-90-0x00000000069E0000-0x0000000006A30000-memory.dmp

    Filesize

    320KB

  • memory/3104-27-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/4004-76-0x00000000070C0000-0x00000000070CA000-memory.dmp

    Filesize

    40KB

  • memory/4004-49-0x0000000005D30000-0x0000000005D4E000-memory.dmp

    Filesize

    120KB

  • memory/4004-89-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4004-81-0x0000000007380000-0x000000000739A000-memory.dmp

    Filesize

    104KB

  • memory/4004-82-0x0000000007360000-0x0000000007368000-memory.dmp

    Filesize

    32KB

  • memory/4004-77-0x00000000072C0000-0x0000000007356000-memory.dmp

    Filesize

    600KB

  • memory/4004-75-0x0000000007040000-0x000000000705A000-memory.dmp

    Filesize

    104KB

  • memory/4004-74-0x0000000007690000-0x0000000007D0A000-memory.dmp

    Filesize

    6.5MB

  • memory/4004-63-0x0000000006D30000-0x0000000006DD3000-memory.dmp

    Filesize

    652KB

  • memory/4004-62-0x00000000062E0000-0x00000000062FE000-memory.dmp

    Filesize

    120KB

  • memory/4004-20-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4004-19-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4004-51-0x0000000006CF0000-0x0000000006D22000-memory.dmp

    Filesize

    200KB

  • memory/4004-52-0x00000000711F0000-0x000000007123C000-memory.dmp

    Filesize

    304KB

  • memory/4004-50-0x0000000005D50000-0x0000000005D9C000-memory.dmp

    Filesize

    304KB

  • memory/4004-33-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4004-26-0x00000000056A0000-0x00000000059F4000-memory.dmp

    Filesize

    3.3MB

  • memory/4056-0-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

    Filesize

    4KB

  • memory/4056-1-0x00000000008B0000-0x0000000000956000-memory.dmp

    Filesize

    664KB

  • memory/4056-4-0x00000000052C0000-0x00000000052CA000-memory.dmp

    Filesize

    40KB

  • memory/4056-48-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4056-7-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

    Filesize

    4KB

  • memory/4056-5-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4056-8-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4056-2-0x00000000058F0000-0x0000000005E94000-memory.dmp

    Filesize

    5.6MB

  • memory/4056-6-0x00000000054B0000-0x00000000054C0000-memory.dmp

    Filesize

    64KB

  • memory/4056-3-0x0000000005220000-0x00000000052B2000-memory.dmp

    Filesize

    584KB

  • memory/4056-9-0x00000000068A0000-0x0000000006922000-memory.dmp

    Filesize

    520KB

  • memory/4056-10-0x0000000008E40000-0x0000000008EDC000-memory.dmp

    Filesize

    624KB

  • memory/4200-25-0x0000000005930000-0x0000000005996000-memory.dmp

    Filesize

    408KB

  • memory/4200-16-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4200-15-0x00000000026C0000-0x00000000026F6000-memory.dmp

    Filesize

    216KB

  • memory/4200-78-0x0000000007490000-0x00000000074A1000-memory.dmp

    Filesize

    68KB

  • memory/4200-79-0x00000000074C0000-0x00000000074CE000-memory.dmp

    Filesize

    56KB

  • memory/4200-80-0x00000000074D0000-0x00000000074E4000-memory.dmp

    Filesize

    80KB

  • memory/4200-18-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4200-17-0x00000000051A0000-0x00000000057C8000-memory.dmp

    Filesize

    6.2MB

  • memory/4200-64-0x00000000711F0000-0x000000007123C000-memory.dmp

    Filesize

    304KB

  • memory/4200-22-0x00000000050E0000-0x0000000005102000-memory.dmp

    Filesize

    136KB

  • memory/4200-88-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4200-23-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4200-24-0x00000000057D0000-0x0000000005836000-memory.dmp

    Filesize

    408KB