Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250207-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-02-2025 15:32

General

  • Target

    Purchase Order_FEB 2025_pdf.exe

  • Size

    1.0MB

  • MD5

    9054f467db1180f7991ba2d42a754f59

  • SHA1

    104f702513021faf28cf4e641b12e21fb5f1e4b6

  • SHA256

    251ad36ce2fa611f2f94c6a90fddca59d881e48c8a4fd3ef892d803996742e12

  • SHA512

    91159fc0b760c602e8f66c79dff80428a36b652ffc63495222d0665256cbab3307b3cf498a3eea0aed8a7ae025c3f8c516aa246a9583c93b0d48bef3cdef5731

  • SSDEEP

    24576:LzOEC045stTUHEd6OQfazVGfCANG5Hgaph:eEeKtTUHo6OQSrXNg4

Malware Config

Signatures

  • Guloader family
  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Downloads MZ/PE file 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order_FEB 2025_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order_FEB 2025_pdf.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2700
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order_FEB 2025_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Order_FEB 2025_pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of NtCreateThreadExHideFromDebugger
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2652
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIzIiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDQ0OTciIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxNjkzODEzMjAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MzY4ODg5MzU4Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:1584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nsdE6A8.tmp\System.dll

    Filesize

    11KB

    MD5

    3f176d1ee13b0d7d6bd92e1c7a0b9bae

    SHA1

    fe582246792774c2c9dd15639ffa0aca90d6fd0b

    SHA256

    fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

    SHA512

    0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

  • memory/2652-18-0x0000000001720000-0x0000000006F40000-memory.dmp

    Filesize

    88.1MB

  • memory/2652-19-0x0000000077218000-0x0000000077219000-memory.dmp

    Filesize

    4KB

  • memory/2652-20-0x0000000077235000-0x0000000077236000-memory.dmp

    Filesize

    4KB

  • memory/2652-30-0x0000000077191000-0x00000000772B1000-memory.dmp

    Filesize

    1.1MB

  • memory/2652-31-0x00000000004C0000-0x0000000001714000-memory.dmp

    Filesize

    18.3MB

  • memory/2652-37-0x00000000004C0000-0x0000000001714000-memory.dmp

    Filesize

    18.3MB

  • memory/2652-39-0x00000000004C0000-0x0000000000520000-memory.dmp

    Filesize

    384KB

  • memory/2652-38-0x0000000001720000-0x0000000006F40000-memory.dmp

    Filesize

    88.1MB

  • memory/2652-40-0x0000000039E00000-0x0000000039E98000-memory.dmp

    Filesize

    608KB

  • memory/2652-56-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-64-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-98-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-96-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-92-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-88-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-86-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-84-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-83-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-80-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-78-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-76-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-70-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-68-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-62-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-60-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-58-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-54-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-52-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-50-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-48-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-46-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-94-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-90-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-42-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-75-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-73-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-66-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-44-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-41-0x0000000039E00000-0x0000000039E92000-memory.dmp

    Filesize

    584KB

  • memory/2652-2106-0x0000000039EA0000-0x0000000039ECC000-memory.dmp

    Filesize

    176KB

  • memory/2652-2107-0x0000000039F60000-0x0000000039FAC000-memory.dmp

    Filesize

    304KB

  • memory/2652-2111-0x0000000037840000-0x0000000037920000-memory.dmp

    Filesize

    896KB

  • memory/2652-5136-0x000000003A2C0000-0x000000003A326000-memory.dmp

    Filesize

    408KB

  • memory/2652-5138-0x000000003A610000-0x000000003ABB4000-memory.dmp

    Filesize

    5.6MB

  • memory/2652-5139-0x000000003A530000-0x000000003A5C2000-memory.dmp

    Filesize

    584KB

  • memory/2652-5140-0x000000003AF40000-0x000000003AF52000-memory.dmp

    Filesize

    72KB

  • memory/2652-5141-0x000000003AF70000-0x000000003AFC0000-memory.dmp

    Filesize

    320KB

  • memory/2700-15-0x0000000077191000-0x00000000772B1000-memory.dmp

    Filesize

    1.1MB

  • memory/2700-16-0x0000000077191000-0x00000000772B1000-memory.dmp

    Filesize

    1.1MB

  • memory/2700-17-0x0000000010004000-0x0000000010005000-memory.dmp

    Filesize

    4KB