Malicious PDF — malware analysis report

Static analysis result for SHA-256 532b92ac474f7654…

MALICIOUS

PDF

34.5 KB Created: 2021-06-28 10:02:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1f08a9105879a2edc3f1b1565f9eebb3 SHA-1: 9a880ba0908dff8f33b3bfb35728eb4b8eeb3eb2 SHA-256: 532b92ac474f7654ab8be9151fdd16aac8031808386641d64b221b8377d1712c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free items, directing users to a malicious redirector URL. This redirector, in turn, hosts further malicious PDF files, indicating a chain of malicious redirection designed to deliver unwanted content or potentially further malware. The ML classifier strongly supports the malicious nature of this PDF.

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 http://netcdn.co/app/431946152/free-robux-no-offer-no-survey-game-hack In PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-script-exporters-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-i-want-to-break-free_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-spins-coin-master-without-completing-offers_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/fb-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-your-hacked-account-back-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-gift-card-free-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/roblox-inappropriate_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-money-cheats-for-tycoons_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/unlimited-robux-2021_GM431946152.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
font_00_sfnt_off00003160.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3160 21916 bytes
SHA-256: ec064842f08a7cf5a15345a19f8162535b08749b2aa02b59d2eabca2f2c3bc9e
font_01_sfnt_off000061e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E1 19012 bytes
SHA-256: f2e0470575b29a609eb0717ad37c6054da6b3fba7cf60ad70ef649d780e08109

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