Malicious PDF — malware analysis report

Static analysis result for SHA-256 135a142546227baa…

MALICIOUS

PDF

46.0 KB Created: 2021-06-10 17:51:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 000f84a95cfc530221850e83a07f047b SHA-1: 813cf376e0d04ea2ce60914833eaab8bb5393344 SHA-256: 135a142546227baa4152b0cbe7c66cfaec8c44cbadc70ec85a6b088adb9e7ba6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic firing for a game hack redirect lure, pointing to a URL that promises free in-game currency or cheats. The document body and embedded links reinforce this lure, directing users to external sites that likely host further malicious content or scams. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/roblox-jailbrek-fly-cheat-engine-33dc-game-hack PDF link annotation
    • https://7gking.tw/upload/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/watch-ads-for-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-free-coins-and-spins-online-tool_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-robux-co_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/roblox-ftw_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-robux-really-works-2021_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/robux-hack-pro-tv_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-lucky-patcher-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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004ee7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EE7 26452 bytes
SHA-256: b56fc39a88c5a326ddfbdf91eef0e5f714946812e5aed422d37560900b73ad43
font_01_sfnt_off00008cd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD8 19716 bytes
SHA-256: 3bd9d82ffe388e2e03cc425aa4df7abcdcbea1da253eca585cbd400a644ab82d

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