Malicious PDF — malware analysis report

Static analysis result for SHA-256 e68e39dded64aaf1…

MALICIOUS

PDF

41.9 KB Created: 2021-05-17 12:26:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5d8c5ed48a18e3d07c81e8571cc76c64 SHA-1: 12f6f4d2cabf23513ccafb5fecdfef20d890db52 SHA-256: e68e39dded64aaf13a30d0880377d193841ebd46345346f1093d7c82d332a914
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that are flagged as malicious redirectors, specifically promoting game hacks and generators. The document body and embedded URLs suggest a lure for users seeking in-game advantages, which is a common tactic for distributing malware or leading to phishing sites. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-apk-hack-2021-game-hack In PDF document text
    • https://www.banhngoncaocap.com/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-hack-apk-app_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-online-hack-link_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/robux-free-2021_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-vpn-for-minecraft_GM479516143.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/free-robux-human-verification_GM431946152.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-free-spins-hacktman_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-villages_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/coin-master-blogspot-links_GM406889139.pdfIn PDF document text
    • https://www.banhngoncaocap.com/images/working-coin-master-hack_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
stream_003_off00004744.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4744 25348 bytes
SHA-256: 3939adec230d29d31fa3dac268d6377f09a7af3178ae1762cafba76a3e16cdc6
font_01_sfnt_off00008134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8134 18296 bytes
SHA-256: 38ab7dd9b05d130c6921055533cd0a0926596721d5b0ea37391651c81168482a

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