Analysis

  • max time kernel
    95s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-09-2024 01:41

General

  • Target

    CG230511007 double ring.pdf.exe

  • Size

    698KB

  • MD5

    4a2d8f6fac5f95fc384c689d9a5927a2

  • SHA1

    97ad59b9532706d2457eb10f6902b5e2f9442566

  • SHA256

    44c35217277fbfdde4251ac9c9bad106247b6f5ca5ca0f1dbaf8f3343b364af0

  • SHA512

    43d2340d3f49c138b9c0f880617f4f730837c8983fa4a254b16ecbaa5dfef38c1643a657cf04962e9897c56fa561ede9181e3be23d24510e8cf9e186bf77cdd2

  • SSDEEP

    12288:FzjLf30WH0IieBhVpz60zapdl4VOqXEkOdu+VGBecnFj8AzPmZ:djj0yyeb/5+lfk8iFFj8MPm

Malware Config

Extracted

Family

agenttesla

Credentials

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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\CG230511007 double ring.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\CG230511007 double ring.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:4996
    • 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\CG230511007 double ring.pdf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3320
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tjrOWyCGkiBRP.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4172
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tjrOWyCGkiBRP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDF63.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1028
    • C:\Users\Admin\AppData\Local\Temp\CG230511007 double ring.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\CG230511007 double ring.pdf.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:716

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

    f5b77f0c69daa55dfa44c191d5f0ba5b

    SHA1

    39b41a6ffeb8c511d92bb3dd2ad87707ac732b2f

    SHA256

    d6aa22b1bf1f9a3acd8dc0e8278f40918be46bfd85ad519a63adb6bf0bde606f

    SHA512

    b9ccbc7e70cc459a827e8e45535e78386e966b4b7fa81b0b4e165e9479ddc2e5834fed286dfd51367e655b052a4892a0c7b7618e6765abf86bf9613eae9fa8e5

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cyyktvuu.itx.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpDF63.tmp

    Filesize

    1KB

    MD5

    1aa41d3c6689e6825d18bfdf378a22d4

    SHA1

    d4afa4714b491ec9f017295cfb6fcd3d3ce2acd5

    SHA256

    decef75b30e5ba1fd1cc5f037a94cc010f08df791cfcba4df9d8279a60c3a036

    SHA512

    ad78b2e67a7ebfafc153e00710e7a86243170ae5d98354f0a10f481e0fdff832e8979d22687b9b448d8b93a9b160d63bb3b02645dc3f6c3c8d250cadcbbc2167

  • memory/716-79-0x0000000006010000-0x0000000006060000-memory.dmp

    Filesize

    320KB

  • memory/716-46-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/3320-23-0x0000000005570000-0x00000000055D6000-memory.dmp

    Filesize

    408KB

  • memory/3320-47-0x0000000005D60000-0x0000000005D7E000-memory.dmp

    Filesize

    120KB

  • memory/3320-89-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

  • memory/3320-83-0x00000000073B0000-0x00000000073B8000-memory.dmp

    Filesize

    32KB

  • memory/3320-82-0x00000000073D0000-0x00000000073EA000-memory.dmp

    Filesize

    104KB

  • memory/3320-15-0x0000000004790000-0x00000000047C6000-memory.dmp

    Filesize

    216KB

  • memory/3320-16-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

  • memory/3320-17-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

  • memory/3320-18-0x0000000004F40000-0x0000000005568000-memory.dmp

    Filesize

    6.2MB

  • memory/3320-19-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

  • memory/3320-75-0x0000000007090000-0x00000000070AA000-memory.dmp

    Filesize

    104KB

  • memory/3320-22-0x0000000004EA0000-0x0000000004EC2000-memory.dmp

    Filesize

    136KB

  • memory/3320-74-0x00000000076D0000-0x0000000007D4A000-memory.dmp

    Filesize

    6.5MB

  • memory/3320-25-0x00000000055E0000-0x0000000005646000-memory.dmp

    Filesize

    408KB

  • memory/3320-64-0x0000000070020000-0x000000007006C000-memory.dmp

    Filesize

    304KB

  • memory/3320-49-0x0000000006310000-0x000000000635C000-memory.dmp

    Filesize

    304KB

  • memory/3320-27-0x0000000005650000-0x00000000059A4000-memory.dmp

    Filesize

    3.3MB

  • memory/4172-77-0x0000000007610000-0x00000000076A6000-memory.dmp

    Filesize

    600KB

  • memory/4172-76-0x0000000007400000-0x000000000740A000-memory.dmp

    Filesize

    40KB

  • memory/4172-90-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

  • memory/4172-81-0x00000000075D0000-0x00000000075E4000-memory.dmp

    Filesize

    80KB

  • memory/4172-80-0x00000000075C0000-0x00000000075CE000-memory.dmp

    Filesize

    56KB

  • memory/4172-24-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

  • memory/4172-51-0x0000000006620000-0x0000000006652000-memory.dmp

    Filesize

    200KB

  • memory/4172-52-0x0000000070020000-0x000000007006C000-memory.dmp

    Filesize

    304KB

  • memory/4172-62-0x0000000006600000-0x000000000661E000-memory.dmp

    Filesize

    120KB

  • memory/4172-26-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

  • memory/4172-63-0x0000000007250000-0x00000000072F3000-memory.dmp

    Filesize

    652KB

  • memory/4172-78-0x0000000007590000-0x00000000075A1000-memory.dmp

    Filesize

    68KB

  • memory/4172-20-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

  • memory/4996-0-0x00000000750DE000-0x00000000750DF000-memory.dmp

    Filesize

    4KB

  • memory/4996-7-0x0000000004D10000-0x0000000004D28000-memory.dmp

    Filesize

    96KB

  • memory/4996-6-0x0000000004E30000-0x0000000004ECC000-memory.dmp

    Filesize

    624KB

  • memory/4996-3-0x0000000004B70000-0x0000000004C02000-memory.dmp

    Filesize

    584KB

  • memory/4996-50-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

  • memory/4996-5-0x0000000004B40000-0x0000000004B4A000-memory.dmp

    Filesize

    40KB

  • memory/4996-10-0x0000000007510000-0x0000000007592000-memory.dmp

    Filesize

    520KB

  • memory/4996-9-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB

  • memory/4996-2-0x0000000005120000-0x00000000056C4000-memory.dmp

    Filesize

    5.6MB

  • memory/4996-1-0x00000000000A0000-0x0000000000152000-memory.dmp

    Filesize

    712KB

  • memory/4996-8-0x00000000750DE000-0x00000000750DF000-memory.dmp

    Filesize

    4KB

  • memory/4996-4-0x00000000750D0000-0x0000000075880000-memory.dmp

    Filesize

    7.7MB