Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae5f3d2c9d5f1012…

MALICIOUS

PDF

42.4 KB Created: 2021-05-12 07:32:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: cd5cfe5fa589e5c6493b5428bfb69a6a SHA-1: a27a6674301d942be78c12cb46031c27b9b262f3 SHA-256: ae5f3d2c9d5f1012a9eecddfa0f9d39ddd56d24fecf758722b2d046c937fb747
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The primary malicious URL identified is https://netcdn.xyz/app/431946152/rewardrobux-com-game-hack. The presence of a visual download button lure and the ML classifier's high confidence score further support the malicious nature of this document, likely intended as a phishing or scam lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/rewardrobux-com-game-hack In PDF document text
    • https://abouttimetech.com/images/how-to-get-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • https://abouttimetech.com/images/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/how-to-hack-in-arsenal_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/coin-master-free-coins-no-human-verification_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • https://abouttimetech.com/images/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://abouttimetech.com/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/get-me-robux_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/free-robux-now_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/robux-free-promo-codes_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/static-moonactive-net-rewards_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/robux-hack-2021_GM431946152.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_off000048aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48AA 25404 bytes
SHA-256: bac9594be37171e13b7a6153891275676fd520ce545d7e799754f636cc935fe8
font_01_sfnt_off000081e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E0 18676 bytes
SHA-256: 7669e564bd091b207fd11e388173a1fc76ed62ef873f42ab23981861f0020ac0