Malicious PDF — malware analysis report

Static analysis result for SHA-256 01622fbaa78624cd…

MALICIOUS

PDF

44.6 KB Created: 2021-05-12 22:02:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 294fe7b3b0068cb3a280eb87e68511df SHA-1: 3693105ba2151eafa366d03d188203a956d8d205 SHA-256: 01622fbaa78624cdc5f6a07df193cd327319a6c562632aa0461e7c23fb031267
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators' for popular games. The primary lure URL is https://netcdn.xyz/app/431946152/how-to-hack-a-roblox-account-2021-game-hack, which is flagged as a malicious redirector. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting these malicious sites, likely for credential harvesting or further malware delivery.

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 https://netcdn.xyz/app/431946152/how-to-hack-a-roblox-account-2021-game-hack In PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-unlimited-spin-hack-apk_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-tips_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-spins-coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/bloxland-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/113-hacked-client_GM479516143.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coinmasterfreespinlink_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/robux-in_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-hack-without-verification-for-iphone_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_003_off0000490e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x490E 27084 bytes
SHA-256: b767d16ac296c8bc73e95b5f825faf3ab4272c9db894fb0704014933fa2ea92d
font_01_sfnt_off000089bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89BD 18992 bytes
SHA-256: aeef6a7714c6357f73dd4bac3524810632f54ab1d1528492d13c90d39421ba58

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