Malicious PDF — malware analysis report

Static analysis result for SHA-256 f75603097d7aea98…

MALICIOUS

PDF

32.7 KB Created: 2021-07-09 11:03:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fd8174f4fde55384803535ebff44bf0e SHA-1: 01e990f23512a46906bc4080ac92198ae0176cf7 SHA-256: f75603097d7aea984af5f8de5d73870ef8aa89188298fd1598754649c501a7a0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to known malicious infrastructure, disguised as game hacks and generators. The primary link, http://netcdn.tw/app/479516143/minecraft-free-android-game-hack, is identified as a malicious redirector. The document body and embedded links suggest a lure for users seeking cheats or in-game currency, a common tactic for phishing or malware distribution.

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/479516143/minecraft-free-android-game-hack In PDF document text
    • https://vierabyragazze.com/upload/files/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-roblox-grouup-bots_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/coin-master-fan-hack_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/robux-free-com_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/minecraft-free-school_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/assassin-item-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-website_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/hack-roblox-ropa_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/robux-miner_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/hack-client_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-make-roblox-t-shirts-free_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/hack-coin-master-net_GM406889139.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/roblox-catalog-free-2021_GM431946152.pdfIn PDF document text
    • https://vierabyragazze.com/upload/files/how-to-get-free-robux-only-username_GM431946152.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_off00002c8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8A 22116 bytes
SHA-256: c4591050e2620163ff0c878988d63fe27cb0f58904e8014ccf3e85ecfe2b3f29
font_01_sfnt_off00005d7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7E 18172 bytes
SHA-256: 76a46b6ffa672d4629705b025ed1d2900a12de91bcde6df1b9c7209dc48d6afd

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