Malicious PDF — malware analysis report

Static analysis result for SHA-256 57097b45f3271a2a…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 08:05:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: df0a8449529c4b6c079cf7e340b7ee09 SHA-1: d2c4144f5ee7c41c411ad50e35a990d549e2829d SHA-256: 57097b45f3271a2aa86d8289755fd023ee047885a0d2f2818fe785a94761d713
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and other PDFs, masquerading as game hacks and generators. The document body and heuristics indicate a lure for users interested in free game items or cheats, which is a common social engineering tactic. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent, likely leading to further malware or phishing pages.

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.tw/app/431946152/my-roblox-account-was-hacked-game-hack In PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-ccv3-speed-hack_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-clothing-free-edit-avatar_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coinmaster-hack_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-hack-net-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-free-obby_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-codes-noverber-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/bad-words-on-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/cone-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-hack-uk_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/prison-life-roblox-hack-download-20212021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-minecraft-alts_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/100-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/pastebin-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-clothes-roblox-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3010 21768 bytes
SHA-256: f008646aa4731ea6975e8afaa9ad0f845ae00b7cda56948987d5f05d1584f019
font_01_sfnt_off00005fd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD2 19648 bytes
SHA-256: 78a0b0d097d6ce8856c1ec611578e14bb242e6d12f35ca0fcecc94937f63d66e

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