Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a95f718612274b8…

MALICIOUS

PDF

44.6 KB Created: 2021-05-12 16:03:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 5543a30aeaf5a4a630066ef8287fde65 SHA-1: 09f1fcba2d09addd1d58cf293fd27ae44694ee3c SHA-256: 7a95f718612274b89435373ee63c4938374d8bbacfbf622c73c069979e3fb314
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a lure related to game hacks and free in-game currency, indicating a social engineering tactic to drive user interaction. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent, likely to redirect users to a site that hosts malware or phishing content. No scripts were extracted, but the document's structure and embedded links are indicative of a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/free-spins-and-coins-coin-master-2021-game-hack PDF link annotation
    • http://somvisio.es/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • http://somvisio.es/images/minecraft-pe-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://somvisio.es/images/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/can-you-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://somvisio.es/images/free-gold-cards-coin-master_GM406889139.pdfIn PDF document text
    • http://somvisio.es/images/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://somvisio.es/images/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://somvisio.es/images/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/mosttechs-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://somvisio.es/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://somvisio.es/images/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://somvisio.es/images/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://somvisio.es/images/how-do-you-get-free-roblox_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004964.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4964 24848 bytes
SHA-256: 4bb4b78da46bf43b1b32d9f34c6df92f9570f9cc805e3f2a0d77e16379254032
font_01_sfnt_off00008188.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8188 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008b3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3A 18460 bytes
SHA-256: 9f443343d33dd80abfdfffa9dfb60a36fd2beaa647f06f075f3e145f27f8847c

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