Malicious PDF — malware analysis report

Static analysis result for SHA-256 01846c8ff102e871…

MALICIOUS

PDF

44.4 KB Created: 2021-05-11 02:33:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 62717a184fb45d611ba1984dc8d78500 SHA-1: 0c810e983cc370d8f71c0d8aca993fe6207096de SHA-256: 01846c8ff102e8713f550d06b30965a13cda38e473ba4f98c10e0404a8e70b1f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that appear to be part of a scam, offering free game currency or hacks. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_GAME_HACK_REDIRECT_LURE' indicate that these links lead to known malicious infrastructure or are designed as lures. The document body and embedded links suggest a phishing or scam attempt, likely to trick users into visiting malicious sites or downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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-get-free-robux-gift-cards-game-hack In PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/impact-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/how-you-get-robux_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/robux-earning-sites_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-roblox-cards-pin-number_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/how-to-hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://psb.sd-alazhar29.sch.id/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a8a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A8A 23456 bytes
SHA-256: 21583560f14d05681289afc323fa3de102ecf60ea3fb5adee6793558344b2cfd
font_01_sfnt_off00007f77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F77 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00008925.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8925 18804 bytes
SHA-256: db707177e1a0df533614fd289cf2b470ee37edf039339bb568c3977480a042bc

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