Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6a103e38dc0f874…

MALICIOUS

PDF

42.5 KB Created: 2021-05-16 13:39:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ab7ae69e007922cffcc04678c3395866 SHA-1: dcb1e34a9231d7bccb6f5f2bd9b39d6732bc170c SHA-256: d6a103e38dc0f874cfc9300a2777bdefe95e08be1bff564aa231ba64f29f32cf
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/prison-life-roblox-hacks-game-hack PDF link annotation
    • http://teksomak.com/images/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • http://teksomak.com/images/roblox-rules_GM431946152.pdfIn PDF document text
    • http://teksomak.com/images/coin-master-level-3_GM406889139.pdfIn PDF document text
    • http://teksomak.com/images/coin-master-hack-apk-facebook-login_GM406889139.pdfIn PDF document text
    • http://teksomak.com/images/http-bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://teksomak.com/images/coin-master-hack-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://teksomak.com/images/coin-master-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://teksomak.com/images/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://teksomak.com/images/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
    • http://teksomak.com/images/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://teksomak.com/images/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://teksomak.com/images/coin-master-free-spin-today-2021_GM406889139.pdfIn PDF document text
    • http://teksomak.com/images/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://teksomak.com/images/oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://teksomak.com/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://teksomak.com/images/coin-master-claim-spins_GM406889139.pdfIn PDF document text
    • http://teksomak.com/images/coin-master-free-spin-link-today-16-11-2021_GM406889139.pdfIn PDF document text
    • http://teksomak.com/images/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://teksomak.com/images/all-coin-master-spin-link-and-free-download_GM406889139.pdfIn PDF document text
    • http://teksomak.com/images/coin-master-in-app-purchase-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049d2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49D2 24976 bytes
SHA-256: 2f80cf8a32dfd302e4ec92b516a309d72535d7cfa17c89e65d85aff40bbe801c
font_01_sfnt_off00008361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8361 18456 bytes
SHA-256: fab57b4e4fdae2397ca7a2df80bd886163a403076cb689fed0106591c842b8c1

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