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Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/01/2025, 01:31

General

  • Target

    25ef9e300c603ac38401bcdc9154024474318a0a97201d618badc995ddeef5df.exe

  • Size

    637KB

  • MD5

    0c5c673b94290adf7458e1e690d01cc9

  • SHA1

    2f5df3a33e2c7f304e01d1d8bad98e8b86aa7f16

  • SHA256

    25ef9e300c603ac38401bcdc9154024474318a0a97201d618badc995ddeef5df

  • SHA512

    2a75442c0f32b8249c0a5fcaa326be8fa077c2e958c163a295d9f6e84a944d7489c05750417fd80df67a13833f60830cd016fe7ab47840e05b8137d5d936ef96

  • SSDEEP

    6144:KWusAIFB++velibxPyp/64wjOjn6cB3rZtT/Yq3v9Auky+4N137Am/v1:Kz7IFjvelQypyfy7z6u7+4D37Am/v1

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Boy12345#

Signatures

  • 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.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses Microsoft Outlook profiles 1 TTPs 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 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 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\25ef9e300c603ac38401bcdc9154024474318a0a97201d618badc995ddeef5df.exe
    "C:\Users\Admin\AppData\Local\Temp\25ef9e300c603ac38401bcdc9154024474318a0a97201d618badc995ddeef5df.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3556
    • C:\Users\Admin\AppData\Roaming\app.exe
      "C:\Users\Admin\AppData\Roaming\app.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2264
      • C:\Users\Admin\AppData\Roaming\app.exe
        "C:\Users\Admin\AppData\Roaming\app.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1396
      • C:\Users\Admin\AppData\Roaming\My.RawFile.exe
        "C:\Users\Admin\AppData\Roaming\My.RawFile.exe"
        3⤵
        • Executes dropped EXE
        • Accesses Microsoft Outlook profiles
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:5036
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3928
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe
        "C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5080

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\aspnet_compiler.exe.log

    Filesize

    20B

    MD5

    b3ac9d09e3a47d5fd00c37e075a70ecb

    SHA1

    ad14e6d0e07b00bd10d77a06d68841b20675680b

    SHA256

    7a23c6e7ccd8811ecdf038d3a89d5c7d68ed37324bae2d4954125d9128fa9432

    SHA512

    09b609ee1061205aa45b3c954efc6c1a03c8fd6b3011ff88cf2c060e19b1d7fd51ee0cb9d02a39310125f3a66aa0146261bdee3d804f472034df711bc942e316

  • C:\Users\Admin\AppData\Roaming\My.RawFile.exe

    Filesize

    142KB

    MD5

    5a733ef0de5e31e2e4b4abb016c0f251

    SHA1

    28644040a6deac35c20fa931b5d003a97293363e

    SHA256

    a80c77ca694eca3f6629c54572aba811e64b61975c5db2ff38c8d662d12b1ce7

    SHA512

    9d09ac6b6a560643cac08345ab6ef8578011b11be7d4821d7aa1b3d76f2801d30cb4d206a4ff9335f0ece5cfa2ec8258754b2481102eac3da064e5005f7ffba9

  • C:\Users\Admin\AppData\Roaming\app.exe

    Filesize

    645KB

    MD5

    da75687991813ba7eb825d4d473fcc88

    SHA1

    6c626b8c11b0e21c6ae160cd6dc5e542bb9641ac

    SHA256

    ebf2b5e43f1693a7f66ef49075692a9bab69cf0e631727c364810c62c259d326

    SHA512

    110fcf02a235afaf4acbc0a9a1c613317cf051aa36ed98f64f489dba11238e423b4f714da4e90f2c58eaba9c29904f93e735d764434d041a9faa728ab9ee2fc4

  • memory/1396-61-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/1396-60-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/1396-37-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/1396-36-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2264-38-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2264-34-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2264-59-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2264-31-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2264-33-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/3556-18-0x0000000074D02000-0x0000000074D03000-memory.dmp

    Filesize

    4KB

  • memory/3556-19-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/3556-20-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/3556-0-0x0000000074D02000-0x0000000074D03000-memory.dmp

    Filesize

    4KB

  • memory/3556-6-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/3556-5-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/3556-32-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/3556-2-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/3556-1-0x0000000074D00000-0x00000000752B1000-memory.dmp

    Filesize

    5.7MB

  • memory/3928-53-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB