Malicious PDF — malware analysis report

Static analysis result for SHA-256 98d2432cec470aa9…

MALICIOUS

PDF

35.1 KB Created: 2021-06-20 09:31:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 9fb9f6332a3f0fc246598b8e1e04d58d SHA-1: c2d2a2bb4f6809e4fa3583d82787bf50b52d2183 SHA-256: 98d2432cec470aa9533ea7205a7311a2ccc84a76813db936f96aba41afda8c19
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains embedded links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and 'generators'. The document body and heuristics indicate a lure for users interested in such topics, aiming to direct them to potentially harmful websites. No scripts were extracted, but the primary attack vector appears to be social engineering via deceptive links.

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/roblox-cheat-engine-tablre-and-bypass-game-hack In PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-coin-spin-daily-link-coin-master_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-code-hack_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/how-to-hack-coin-master-game-2021_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-free-spins-may-11-2021_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/how-many-levels-are-in-coin-master_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-roblox-animations_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-hack-no-verification-ios_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-app-hacks_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
font_00_sfnt_off000030f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F1 22392 bytes
SHA-256: d8b6f452b0a442516c7ccf45b2106c916984b9147dec9bb190f5124cccbb3703
font_01_sfnt_off000062e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E5 19404 bytes
SHA-256: 5c567cdd6ff589368fc93fdf4794979925b00b695cee908d257a2b103d7a0437

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