Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cb7a8ac0482838b…

MALICIOUS

PDF

44.7 KB Created: 2021-05-14 17:39:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8f02ebcb3cb35fa3b829e5c91eaad473 SHA-1: 40b100431e97f1455098d2fc1d77286bebdc336a SHA-256: 6cb7a8ac0482838bc639f3006123ffbff20dd105136dddfbdbc5cd270b599318
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link to a URL that advertises a "hack version" of a game, suggesting a scam or phishing attempt. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were directly extracted, the presence of embedded URLs and the document's content strongly indicate an attempt to direct the user to a malicious download or exploit site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/hack-version-of-coin-master-game-hack In PDF document text
    • https://itv-grabungen.de/images/roblox-person_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/cm-daily-spins_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-hacks-for-spins_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/minecraft-for-macbook-free_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/minecraft-cracked-client_GM479516143.pdfIn PDF document text
    • https://itv-grabungen.de/images/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coinmaster-spins_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-com_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/roblox-games-with-free-vip-servers_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/free-roblox-script-executor_GM431946152.pdfIn PDF document text
    • https://itv-grabungen.de/images/coin-master-free-spins-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a9e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A9E 25012 bytes
SHA-256: c4176d4f1d8c7763c217d11d6cc32300ae1fc62dfdb5e505c7898236d9b655a8
font_01_sfnt_off000082a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A0 17848 bytes
SHA-256: d9bde3e406d035dad20a2676c1f7ae85e4d06f1b9e5d7d6c6a094e48c8d4446c
font_02_sfnt_off0000a367.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA367 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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