Analysis

  • max time kernel
    141s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-08-2024 11:16

General

  • Target

    QUOTATION No.2400228341.pdf.exe

  • Size

    608KB

  • MD5

    690c1b65a6267d6d0b201ba46089aabc

  • SHA1

    9eb6859bae82bcf8b9df7cf4fc061cd9155fdc39

  • SHA256

    244f3a2fad1afa232909355901f33cca18ea95444c5d142c7aa308170db5294f

  • SHA512

    cc540851386a3b98227822b2c952a57caf15db4563f9c246b8be5bca0989aaff70e64191d010738db86598d76dd8ad4e59a50965224db9f623edb64f2f8b3e2a

  • SSDEEP

    12288:foQyRAt8qF72zz4a5wbpkTPVNI8mQdd1lzRB6nC8OziDjmRkR:qm8qF7Gzp5waTPVNuIdnYC8OyCM

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @#Qwerty12345

Extracted

Family

asyncrat

Version

0.5.8

Botnet

2 MONEY

C2

twart.myfirewall.org:14143

Mutex

udn3BZ1Fqt3jtiZx

Attributes
  • delay

    30

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %Temp%

aes.plain

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

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

    Malicious Access or copy of Web Browser Credential store.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 4 IoCs
  • 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.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Start PowerShell.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • 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 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\QUOTATION No.2400228341.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\QUOTATION No.2400228341.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4512
    • C:\Users\Admin\AppData\Local\Temp\QUOTATION No.2400228341.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\QUOTATION No.2400228341.pdf.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4984
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Local\Temp\svchost.exe"' & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1480
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Local\Temp\svchost.exe"'
          4⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:4076
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp55BC.tmp.bat""
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3420
        • C:\Windows\SysWOW64\timeout.exe
          timeout 3
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:3640
        • C:\Users\Admin\AppData\Local\Temp\svchost.exe
          "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2304
          • C:\Users\Admin\AppData\Local\Temp\svchost.exe
            "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
            5⤵
            • Checks computer location settings
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3908
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\cxnjuo.exe"' & exit
              6⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:3300
              • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\cxnjuo.exe"'
                7⤵
                • Command and Scripting Interpreter: PowerShell
                • System Location Discovery: System Language Discovery
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:3644
                • C:\Users\Admin\AppData\Local\Temp\cxnjuo.exe
                  "C:\Users\Admin\AppData\Local\Temp\cxnjuo.exe"
                  8⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • System Location Discovery: System Language Discovery
                  • Suspicious use of WriteProcessMemory
                  PID:4236
                  • C:\Users\Admin\AppData\Local\Temp\cxnjuo.exe
                    "C:\Users\Admin\AppData\Local\Temp\cxnjuo.exe"
                    9⤵
                    • Executes dropped EXE
                    • System Location Discovery: System Language Discovery
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:372

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\QUOTATION No.2400228341.pdf.exe.log

    Filesize

    1KB

    MD5

    7cad59aef5a93f093b6ba494f13f796f

    SHA1

    3cef97b77939bfc06dfd3946fc1a8cd159f67100

    SHA256

    1e1b444fe2d8772f6709b22b94bb5b0aa7fa590f6a693705d9bf1f2f71267a55

    SHA512

    8cedd03efec34c6226a01fd6b4831a689be16545ea6b849cd96f775e0722bfefd4b47f3dd8401d2080d341d4319f75995ece60de44352a1f86a2e5dc01e6210b

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hatantft.35g.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\cxnjuo.exe

    Filesize

    787KB

    MD5

    65024845cc98cd27fe6fd1cde0b90e13

    SHA1

    548a9f43848255a76b96d9617fce46216ce7cac2

    SHA256

    3ea082cbf550dcc1c297441b6859a65c1a47587a9eec61121d6799984e679c2f

    SHA512

    a41f91fdf28d3a46663a5ee29c2cff030876fbe458bb6f84c012fdc02641f5c21208beba17ff6e541ea48592ea53a7f4e62fe0f4de13442bf20c2ad1b4fa20a0

  • C:\Users\Admin\AppData\Local\Temp\svchost.exe

    Filesize

    608KB

    MD5

    690c1b65a6267d6d0b201ba46089aabc

    SHA1

    9eb6859bae82bcf8b9df7cf4fc061cd9155fdc39

    SHA256

    244f3a2fad1afa232909355901f33cca18ea95444c5d142c7aa308170db5294f

    SHA512

    cc540851386a3b98227822b2c952a57caf15db4563f9c246b8be5bca0989aaff70e64191d010738db86598d76dd8ad4e59a50965224db9f623edb64f2f8b3e2a

  • C:\Users\Admin\AppData\Local\Temp\tmp55BC.tmp.bat

    Filesize

    154B

    MD5

    6f3f3e5dfd003459aafe57b88c58a07a

    SHA1

    31fa0fd8797e4fb0bc3d6c3402cab9eebcf4bc0f

    SHA256

    6fbc713904a3df0137310e57278d907d7c14ab0e560faa109207a76aea89f6b0

    SHA512

    4fae627b564c8359fb580b7412ec3a1270756985dffb0d8e4b5692763507d40d49d18b66203085231ebe6c7ceefc7faf74afb9d97848d801a68af71a2965ae9b

  • memory/372-72-0x0000000006EF0000-0x0000000006F40000-memory.dmp

    Filesize

    320KB

  • memory/372-64-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2304-29-0x0000000006690000-0x00000000066A6000-memory.dmp

    Filesize

    88KB

  • memory/3644-52-0x0000000006440000-0x000000000645E000-memory.dmp

    Filesize

    120KB

  • memory/3644-51-0x0000000005E80000-0x00000000061D4000-memory.dmp

    Filesize

    3.3MB

  • memory/3644-53-0x00000000064E0000-0x000000000652C000-memory.dmp

    Filesize

    304KB

  • memory/3644-46-0x0000000005DA0000-0x0000000005E06000-memory.dmp

    Filesize

    408KB

  • memory/3644-40-0x0000000005480000-0x00000000054A2000-memory.dmp

    Filesize

    136KB

  • memory/3644-39-0x0000000005700000-0x0000000005D28000-memory.dmp

    Filesize

    6.2MB

  • memory/3644-54-0x0000000007400000-0x0000000007496000-memory.dmp

    Filesize

    600KB

  • memory/3644-38-0x0000000002B10000-0x0000000002B46000-memory.dmp

    Filesize

    216KB

  • memory/3644-55-0x0000000006950000-0x000000000696A000-memory.dmp

    Filesize

    104KB

  • memory/3644-56-0x00000000069A0000-0x00000000069C2000-memory.dmp

    Filesize

    136KB

  • memory/3908-34-0x0000000007540000-0x00000000075B6000-memory.dmp

    Filesize

    472KB

  • memory/3908-35-0x00000000074C0000-0x0000000007522000-memory.dmp

    Filesize

    392KB

  • memory/3908-71-0x00000000076B0000-0x00000000076BA000-memory.dmp

    Filesize

    40KB

  • memory/3908-70-0x0000000007710000-0x0000000007750000-memory.dmp

    Filesize

    256KB

  • memory/3908-69-0x00000000076A0000-0x00000000076A8000-memory.dmp

    Filesize

    32KB

  • memory/3908-68-0x00000000077B0000-0x000000000784C000-memory.dmp

    Filesize

    624KB

  • memory/3908-36-0x00000000075C0000-0x00000000075DE000-memory.dmp

    Filesize

    120KB

  • memory/4236-62-0x0000000005600000-0x0000000005954000-memory.dmp

    Filesize

    3.3MB

  • memory/4236-61-0x0000000000BC0000-0x0000000000C8A000-memory.dmp

    Filesize

    808KB

  • memory/4236-63-0x00000000098F0000-0x0000000009972000-memory.dmp

    Filesize

    520KB

  • memory/4512-10-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/4512-4-0x0000000005360000-0x00000000056B4000-memory.dmp

    Filesize

    3.3MB

  • memory/4512-11-0x0000000005780000-0x0000000005796000-memory.dmp

    Filesize

    88KB

  • memory/4512-0-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

    Filesize

    4KB

  • memory/4512-9-0x0000000074D8E000-0x0000000074D8F000-memory.dmp

    Filesize

    4KB

  • memory/4512-8-0x00000000068C0000-0x00000000068DE000-memory.dmp

    Filesize

    120KB

  • memory/4512-7-0x0000000005E30000-0x0000000005ECC000-memory.dmp

    Filesize

    624KB

  • memory/4512-6-0x00000000052A0000-0x00000000052AA000-memory.dmp

    Filesize

    40KB

  • memory/4512-5-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/4512-12-0x0000000009410000-0x0000000009464000-memory.dmp

    Filesize

    336KB

  • memory/4512-3-0x00000000051E0000-0x0000000005272000-memory.dmp

    Filesize

    584KB

  • memory/4512-1-0x0000000000720000-0x00000000007BA000-memory.dmp

    Filesize

    616KB

  • memory/4512-17-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/4512-2-0x0000000005790000-0x0000000005D34000-memory.dmp

    Filesize

    5.6MB

  • memory/4984-16-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/4984-20-0x00000000054C0000-0x0000000005526000-memory.dmp

    Filesize

    408KB

  • memory/4984-18-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/4984-25-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/4984-19-0x0000000074D80000-0x0000000075530000-memory.dmp

    Filesize

    7.7MB

  • memory/4984-13-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB