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Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/10/2024, 01:30

General

  • Target

    405832c40918da8ad82482319361d443a19cb05d8834e0258e5c54bf11faae84.exe

  • Size

    1.8MB

  • MD5

    3b2e54913c8b29ce886c8b36f8dd0cfc

  • SHA1

    ff514c4f55dc70f5d1914fcf7118f24fd636e8a2

  • SHA256

    405832c40918da8ad82482319361d443a19cb05d8834e0258e5c54bf11faae84

  • SHA512

    c872c307a060c3ec9b026d24f159447d74de06a5e2e73f5729c9360c5f20b0dc1afe17c870793309f4bddd6c1ec52ce68a1dca9c0b102d089ab48a6db7071c81

  • SSDEEP

    49152:RFXZRd8cSc710RxibZkpQuiQcWpn0JGgKD:/XPmct7uMqn0QD

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    162.254.34.31
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ABwuRZS5Mjh5

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 3 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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 2 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.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3520
      • C:\Users\Admin\AppData\Local\Temp\405832c40918da8ad82482319361d443a19cb05d8834e0258e5c54bf11faae84.exe
        "C:\Users\Admin\AppData\Local\Temp\405832c40918da8ad82482319361d443a19cb05d8834e0258e5c54bf11faae84.exe"
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Checks computer location settings
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1068
        • C:\Users\Admin\AppData\Local\Temp\docdd.exe
          "C:\Users\Admin\AppData\Local\Temp\docdd.exe"
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:872
          • C:\Users\Admin\AppData\Local\Temp\tmpA5B6.tmp.exe
            "C:\Users\Admin\AppData\Local\Temp\tmpA5B6.tmp.exe"
            4⤵
            • Suspicious use of NtCreateUserProcessOtherParentProcess
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of SetThreadContext
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:2424
      • C:\Users\Admin\AppData\Local\Temp\405832c40918da8ad82482319361d443a19cb05d8834e0258e5c54bf11faae84.exe
        "C:\Users\Admin\AppData\Local\Temp\405832c40918da8ad82482319361d443a19cb05d8834e0258e5c54bf11faae84.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3268
      • C:\Users\Admin\AppData\Local\Temp\tmpA5B6.tmp.exe
        "C:\Users\Admin\AppData\Local\Temp\tmpA5B6.tmp.exe"
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of AdjustPrivilegeToken
        PID:4752

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      45KB

      MD5

      dbd0e17845da07384d942b76268cf5b7

      SHA1

      c1fca3c8ab7e6d60fe3703a4ee52bbac1d61e6ad

      SHA256

      4a9a9156581680f9b5082c685a656994a2248ff274900710014ca9c3c7868db8

      SHA512

      f7697d93690f3bd673501401b4286cf4794b39563e5d1707af5bd407e2acb2cba8f3331e0df9091f0cc4895155ac9be9aa89668f92b33a9319ea25551b876f8c

    • C:\Users\Admin\AppData\Local\Temp\tmpA5B6.tmp.exe

      Filesize

      2.4MB

      MD5

      1590a3efb4a143305e7182fbd284a414

      SHA1

      4b1910fc583442a94a7a246c5424354991e22f13

      SHA256

      b11ec3f1e913b4c0caeaf24b194998e7702da6c0b30afc8a147df52b26fd829f

      SHA512

      6b34bb151902e7c0a9ac349d16be5ebe23c4574fd1b4131d63691ab7b8771beccf2044db85b5714fc90da15fb0c4029313a174497fc85652e1e6a4c084f010f7

    • \??\c:\users\admin\appdata\roaming\ioibrzb.exe

      Filesize

      2.4MB

      MD5

      b01f771eba0c63389b02cc9a383e0cc5

      SHA1

      10f33d613ad399c0230629bfba691a940746160d

      SHA256

      22678e7edfe0c07da9743b0b01395465a1e279891d94e0c8bc3bf0612ca85b32

      SHA512

      695e7b1feedad8e13b09fdf55c6976120e110d98971d51af76d17f20b7336379d45bbf664907f5bae2f1561a777126ee3bd204d94aa8f405489975d57fd84534

    • memory/872-1101-0x0000000074870000-0x0000000075020000-memory.dmp

      Filesize

      7.7MB

    • memory/872-1099-0x0000000000270000-0x0000000000282000-memory.dmp

      Filesize

      72KB

    • memory/872-1105-0x0000000002650000-0x0000000002656000-memory.dmp

      Filesize

      24KB

    • memory/872-1106-0x0000000074870000-0x0000000075020000-memory.dmp

      Filesize

      7.7MB

    • memory/872-1124-0x0000000074870000-0x0000000075020000-memory.dmp

      Filesize

      7.7MB

    • memory/1068-20-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-8-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-28-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-16-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-6-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-32-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-44-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-68-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-66-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-64-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-62-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-61-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-58-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-56-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-54-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-52-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-50-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-48-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-42-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-40-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-38-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-36-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-34-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-46-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-30-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-26-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-24-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-22-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-3-0x0000000005340000-0x000000000546C000-memory.dmp

      Filesize

      1.2MB

    • memory/1068-18-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-4-0x0000000005640000-0x0000000005738000-memory.dmp

      Filesize

      992KB

    • memory/1068-14-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-1087-0x0000000074870000-0x0000000075020000-memory.dmp

      Filesize

      7.7MB

    • memory/1068-12-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-5-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-1079-0x0000000074870000-0x0000000075020000-memory.dmp

      Filesize

      7.7MB

    • memory/1068-1080-0x00000000057A0000-0x0000000005812000-memory.dmp

      Filesize

      456KB

    • memory/1068-1081-0x0000000005850000-0x000000000589C000-memory.dmp

      Filesize

      304KB

    • memory/1068-1086-0x0000000074870000-0x0000000075020000-memory.dmp

      Filesize

      7.7MB

    • memory/1068-1084-0x0000000074870000-0x0000000075020000-memory.dmp

      Filesize

      7.7MB

    • memory/1068-10-0x0000000005640000-0x0000000005732000-memory.dmp

      Filesize

      968KB

    • memory/1068-1100-0x0000000006A50000-0x0000000006FF4000-memory.dmp

      Filesize

      5.6MB

    • memory/1068-1102-0x0000000005A10000-0x0000000005A64000-memory.dmp

      Filesize

      336KB

    • memory/1068-0-0x000000007487E000-0x000000007487F000-memory.dmp

      Filesize

      4KB

    • memory/1068-1107-0x0000000074870000-0x0000000075020000-memory.dmp

      Filesize

      7.7MB

    • memory/1068-1-0x0000000000860000-0x0000000000A34000-memory.dmp

      Filesize

      1.8MB

    • memory/1068-2-0x0000000074870000-0x0000000075020000-memory.dmp

      Filesize

      7.7MB

    • memory/2424-1126-0x0000000005280000-0x0000000005436000-memory.dmp

      Filesize

      1.7MB

    • memory/2424-2202-0x0000000005760000-0x000000000585C000-memory.dmp

      Filesize

      1008KB

    • memory/2424-1125-0x0000000000710000-0x0000000000970000-memory.dmp

      Filesize

      2.4MB

    • memory/2424-1127-0x0000000005540000-0x00000000056C2000-memory.dmp

      Filesize

      1.5MB

    • memory/3268-3066-0x0000000006C30000-0x0000000006CCC000-memory.dmp

      Filesize

      624KB

    • memory/3268-1109-0x0000000000400000-0x0000000000440000-memory.dmp

      Filesize

      256KB

    • memory/3268-1110-0x0000000002E20000-0x0000000002E86000-memory.dmp

      Filesize

      408KB

    • memory/3268-1111-0x0000000074870000-0x0000000075020000-memory.dmp

      Filesize

      7.7MB

    • memory/3268-3065-0x0000000006B40000-0x0000000006B90000-memory.dmp

      Filesize

      320KB

    • memory/3268-1108-0x0000000074870000-0x0000000075020000-memory.dmp

      Filesize

      7.7MB

    • memory/3268-3069-0x0000000074870000-0x0000000075020000-memory.dmp

      Filesize

      7.7MB

    • memory/3268-3070-0x0000000074870000-0x0000000075020000-memory.dmp

      Filesize

      7.7MB

    • memory/4752-2211-0x0000000005360000-0x0000000005426000-memory.dmp

      Filesize

      792KB

    • memory/4752-2210-0x0000000000400000-0x00000000004B4000-memory.dmp

      Filesize

      720KB

    • memory/4752-3064-0x0000000005420000-0x0000000005476000-memory.dmp

      Filesize

      344KB

    • memory/4752-3067-0x0000000005770000-0x0000000005802000-memory.dmp

      Filesize

      584KB

    • memory/4752-3068-0x0000000005740000-0x000000000574A000-memory.dmp

      Filesize

      40KB