Malicious PDF — malware analysis report

Static analysis result for SHA-256 e802dd3c819b130c…

MALICIOUS

PDF

34.6 KB Created: 2021-06-28 04:26:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 14644b0151d9b8193cac2f2db055e043 SHA-1: a90c0c342c2b9b6abcc6482bae6ee96daf90bdd4 SHA-256: e802dd3c819b130c21afbe19a1a7cd717df06803ddb0216b2f49e1d6fba65bef
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating it is a malicious redirector lure, specifically advertising game hacks and generators. The primary URL, http://netcdn.co/app/431946152/roblox-hack-apk-2021-game-hack, is flagged as a known malicious redirector. The document body, though partially garbled, reinforces the lure by mentioning 'Roblox Hack Apk 2021' and embedding the same URL.

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-hack-apk-2021-game-hack In PDF document text
    • https://perpustakaan.itda.ac.id/repository/master-game_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-spin-link_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-from-obby_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/natural-disaster-survival-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-nude-tshiryts-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-pubg-uc-hack_GM1330123889.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/comment-hacker-des-map-roblox-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/get-more-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-item-codes-in-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/cheat-roblox-knife-capsules_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hack-roblox-weight-lifting_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-how-to-get-free-bc-no-scam_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-no-verification-android_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-do-you-hack-roblox-kick-off_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/real-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-toys-codes-free-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-tibetan-mastiff-for-free-on-roblox_GM431946152.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_off00002f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F71 22528 bytes
SHA-256: 835aa1225a8b32072a716306664679dffedb5f321331317845677855befc639d
font_01_sfnt_off00006182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6182 19236 bytes
SHA-256: 3c4e0da26e191553f28a57250f4bd816e5ea1e0e761f3824e20086bdc67652ab

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