Analysis

  • max time kernel
    143s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2023 13:46

General

  • Target

    814160fdc952e77261b7516ccc42ab8468e67ec8e74ab6af0e36e4e2667a07a1.exe

  • Size

    1.2MB

  • MD5

    1bf23642569e26271c390b701c733f78

  • SHA1

    663c0a7a29326fa382db5cf74f64c8c51fdc1721

  • SHA256

    814160fdc952e77261b7516ccc42ab8468e67ec8e74ab6af0e36e4e2667a07a1

  • SHA512

    0b8bb6a45fb89346c3ea83fc061004773d1356fb57a4c8449d5d89d1926e6481d9342d08b4218b5e1b23803c2405c95a23b788ea05e09a589bb30737073e661d

  • SSDEEP

    24576:gOprW6sSF59h9bNRFPd5NW/K1lmXbbdisFQXWr3TRX5VKtJd8:w6sg59h9bNRFPd5NW/kmXmWr3ThTqK

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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.

  • 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).

  • Gathers network information 2 TTPs 2 IoCs

    Uses commandline utility to view network configuration.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\814160fdc952e77261b7516ccc42ab8468e67ec8e74ab6af0e36e4e2667a07a1.exe
    "C:\Users\Admin\AppData\Local\Temp\814160fdc952e77261b7516ccc42ab8468e67ec8e74ab6af0e36e4e2667a07a1.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4476
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ipconfig /release
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1932
      • C:\Windows\SysWOW64\ipconfig.exe
        ipconfig /release
        3⤵
        • Gathers network information
        PID:3732
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ipconfig /renew
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1520
      • C:\Windows\SysWOW64\ipconfig.exe
        ipconfig /renew
        3⤵
        • Gathers network information
        PID:2364
    • C:\Users\Admin\AppData\Local\Temp\814160fdc952e77261b7516ccc42ab8468e67ec8e74ab6af0e36e4e2667a07a1.exe
      C:\Users\Admin\AppData\Local\Temp\814160fdc952e77261b7516ccc42ab8468e67ec8e74ab6af0e36e4e2667a07a1.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4376

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\814160fdc952e77261b7516ccc42ab8468e67ec8e74ab6af0e36e4e2667a07a1.exe.log

    Filesize

    927B

    MD5

    4a911455784f74e368a4c2c7876d76f4

    SHA1

    a1700a0849ffb4f26671eb76da2489946b821c34

    SHA256

    264098e15b5b33d425f3b76e45b7976b58f917048125041135f7e60d8151108c

    SHA512

    4617591400409e1930195795a55e20d5f063042bb3e9fd1955099066e507b6ac8a1e3ae54cc42418e2639149b31bf7e58cd5743670d9030a15e29f14d813815d

  • memory/4376-12-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/4376-24-0x0000000006A30000-0x0000000006A3A000-memory.dmp

    Filesize

    40KB

  • memory/4376-23-0x0000000006A80000-0x0000000006B12000-memory.dmp

    Filesize

    584KB

  • memory/4376-22-0x0000000005620000-0x0000000005630000-memory.dmp

    Filesize

    64KB

  • memory/4376-21-0x00000000745A0000-0x0000000074D50000-memory.dmp

    Filesize

    7.7MB

  • memory/4376-20-0x0000000006700000-0x000000000679C000-memory.dmp

    Filesize

    624KB

  • memory/4376-19-0x0000000006610000-0x0000000006660000-memory.dmp

    Filesize

    320KB

  • memory/4376-18-0x0000000005730000-0x0000000005796000-memory.dmp

    Filesize

    408KB

  • memory/4376-17-0x0000000005620000-0x0000000005630000-memory.dmp

    Filesize

    64KB

  • memory/4376-16-0x00000000745A0000-0x0000000074D50000-memory.dmp

    Filesize

    7.7MB

  • memory/4476-5-0x0000000005920000-0x0000000005960000-memory.dmp

    Filesize

    256KB

  • memory/4476-10-0x0000000006B60000-0x0000000007104000-memory.dmp

    Filesize

    5.6MB

  • memory/4476-15-0x00000000745A0000-0x0000000074D50000-memory.dmp

    Filesize

    7.7MB

  • memory/4476-9-0x0000000005980000-0x0000000005990000-memory.dmp

    Filesize

    64KB

  • memory/4476-8-0x00000000745A0000-0x0000000074D50000-memory.dmp

    Filesize

    7.7MB

  • memory/4476-7-0x0000000005AD0000-0x0000000005B1C000-memory.dmp

    Filesize

    304KB

  • memory/4476-6-0x0000000005A90000-0x0000000005AD0000-memory.dmp

    Filesize

    256KB

  • memory/4476-0-0x0000000000D90000-0x0000000000EC4000-memory.dmp

    Filesize

    1.2MB

  • memory/4476-4-0x00000000058C0000-0x0000000005918000-memory.dmp

    Filesize

    352KB

  • memory/4476-3-0x00000000057F0000-0x0000000005852000-memory.dmp

    Filesize

    392KB

  • memory/4476-2-0x0000000005980000-0x0000000005990000-memory.dmp

    Filesize

    64KB

  • memory/4476-1-0x00000000745A0000-0x0000000074D50000-memory.dmp

    Filesize

    7.7MB