Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc45b78bf0453936…

MALICIOUS

PDF

35.5 KB Created: 2021-07-01 14:14:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bec020c1514f5b9f23ed7461e4c81bdb SHA-1: 223093f424a5c49a4471712a66136555b313893a SHA-256: fc45b78bf0453936187e56b0874b5d5b282fc5bde6d2e713a83798ce241b261c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, one of which is flagged as a potential download source for malicious applications. The document body and extracted URLs suggest a lure for game-related hacks and cheats, a common social engineering tactic. While no scripts were explicitly extracted, the presence of embedded URIs and the ML classifier's high confidence indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/431946152/roblox-continue-as-a-guest-for-free-game-hack In PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/unlimited-spin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/roblox-jailbreak-hack-tool-download_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/how-do-people-give-us-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/roblox-robux-2021-free_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/100-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/new-roblox-hack-free-followers_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-coin-master-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-codes-for-shouting-simulator-roblox-list_GM431946152.pdfIn PDF document text
    • https://www.e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/how-to-noclip-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/bape-roblox-free-tshirt_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-robux-2021-no-having-to-get-anything_GM431946152.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.man-purwakarta.sch.id/__statics/gudangsoal/files/coin-master-hack-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3304 22592 bytes
SHA-256: ebca3d650743ba810a712bc106350ae9b8a536f439b4a78fa78397345ff58916
font_01_sfnt_off000065c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C6 19012 bytes
SHA-256: bc23b313f033a8b4becae050583bdb37896160cca1c99bc9e52d0a84992ac3a0

Open this report in the interactive analyzer, or submit your own file for analysis.