Analysis

  • max time kernel
    157s
  • max time network
    161s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    22/03/2025, 06:10

General

  • Target

    4c2f38b99403c4aaca4e0a524b094c17b8d7b462af1041dee9e7562c512af4d5.exe

  • Size

    650KB

  • MD5

    f6276c3c25982a59d17cced52b409e2f

  • SHA1

    61025476f38e1a9bd29721014c76cc03d27f145f

  • SHA256

    4c2f38b99403c4aaca4e0a524b094c17b8d7b462af1041dee9e7562c512af4d5

  • SHA512

    a128ca1cd21b9e22b3173d5d0ce2015c492f271dc3a70af095a632c05bdb264261969ebefbfcc21c921022a08829f043c85ebaf075e0f34e2f532438220fda6c

  • SSDEEP

    6144:BtT/Yq3v9Auky+4dusAIFB++velibxPyp/64wjOjn6cB3rfc:r6u7+487IFjvelQypyfy7fc

Malware Config

Extracted

Credentials

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

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 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 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 7 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 39 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4c2f38b99403c4aaca4e0a524b094c17b8d7b462af1041dee9e7562c512af4d5.exe
    "C:\Users\Admin\AppData\Local\Temp\4c2f38b99403c4aaca4e0a524b094c17b8d7b462af1041dee9e7562c512af4d5.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2568
    • C:\Users\Admin\AppData\Roaming\app.exe
      "C:\Users\Admin\AppData\Roaming\app.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3040
      • 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:2912
      • 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:1196
      • 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:2692
      • 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:2924
      • 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:1756

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab8601.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar9657.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

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

    Filesize

    656KB

    MD5

    85df107824bfa2564eeb57602df2e9ab

    SHA1

    056d0b249246816ddf988e8f16f7eef61925fba4

    SHA256

    735e3433f087ba6c20e6dd3c6e3442b7b8e71f011ad8ef236e0395c34440519e

    SHA512

    923b0247be1e953810285bb53ce0d8e9cb3e334e6140f8b53fb1ae62c7450e4038f6f7f4bcdae9e8999d1f245a78568bd2d830c2011ecdd753b4df3ebcdfbfd5

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

    Filesize

    142KB

    MD5

    5a733ef0de5e31e2e4b4abb016c0f251

    SHA1

    28644040a6deac35c20fa931b5d003a97293363e

    SHA256

    a80c77ca694eca3f6629c54572aba811e64b61975c5db2ff38c8d662d12b1ce7

    SHA512

    9d09ac6b6a560643cac08345ab6ef8578011b11be7d4821d7aa1b3d76f2801d30cb4d206a4ff9335f0ece5cfa2ec8258754b2481102eac3da064e5005f7ffba9

  • memory/1756-98-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2568-25-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2568-10-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2568-0-0x0000000074DA1000-0x0000000074DA2000-memory.dmp

    Filesize

    4KB

  • memory/2568-12-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2568-32-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2568-1-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2568-24-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2568-11-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2568-2-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/2692-77-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2692-73-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2692-66-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2692-68-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2692-70-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2692-76-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2692-75-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/2692-74-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3040-33-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/3040-43-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/3040-34-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/3040-65-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/3040-42-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/3040-102-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/3040-103-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/3040-106-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB

  • memory/3040-107-0x0000000074DA0000-0x000000007534B000-memory.dmp

    Filesize

    5.7MB