Malicious PDF — malware analysis report

Static analysis result for SHA-256 de60110e32cfffae…

MALICIOUS

PDF

47.3 KB Created: 2021-05-17 09:01:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 56a493ddfe03629d32afbf7827bd70e2 SHA-1: d43d0f6f99b37957b3e66e10fdb6f1bde99fe578 SHA-256: de60110e32cfffaedf63fbcf32ad620c2629f1f2234a54d9fc86af6617facd2e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to a known malicious infrastructure, specifically advertising free Robux and game hacks. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the embedded links and the nature of the lure suggest an attempt to redirect users to a malicious site, likely for phishing or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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/431946152/free-robux-promo-codes-2021-game-hack In PDF document text
    • http://lawpatron.ru/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/free-100-robux_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://lawpatron.ru/images/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/robux-for-kids_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/free-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.communes.comIn 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_off00004a76.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A76 26120 bytes
SHA-256: a318d07b748e225bdc299fd65890ec4cf06287e9dd71402acfcc4e8e97d7f7a1
font_01_sfnt_off0000872a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x872A 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off0000943b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x943B 19004 bytes
SHA-256: 2ae4233163b81a205a597c97f5f9bceef85a21038461a0399da8d1b6d9f39b0a

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