Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aada02cce007d7a…

MALICIOUS

PDF

40.9 KB Created: 2021-05-16 15:03:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 8f1d2db10a5203a94a56e25178d614cb SHA-1: 1ff34d9b80206d13c3cf9fba28818fe952c08a1d SHA-256: 8aada02cce007d7aaed7cb98e7762398edda5481fe680b7be13930203e693902
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, disguised as 'free generators' or 'game hacks' for popular games. The primary malicious URL identified is https://netcdn.xyz/app/406889139/free-spins-coin-master-2021-game-hack. The document body and embedded URLs suggest a lure for users seeking in-game currency or cheats, which is a common social engineering tactic. No scripts were extracted from this sample.

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/406889139/free-spins-coin-master-2021-game-hack In PDF document text
    • http://infoagronomia.com.ar/images/coin-master-apk-hack-358_GM406889139.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/minecraft-hack-ios_GM479516143.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/coin-master-hack-review_GM406889139.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/how-to-create-group-in-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/coin-master-village-3_GM406889139.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/coin-master-free-spin-link-twitter_GM406889139.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/free-roblox-shirts-templates_GM431946152.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/level-coin_GM406889139.pdfIn PDF document text
    • http://infoagronomia.com.ar/images/static-moonactive-net_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
stream_003_off0000457b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x457B 24512 bytes
SHA-256: 3e296f948d09851b52ea97d3cb547e47fec2240952014be92da159526e387a97
font_01_sfnt_off00007d76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D76 18288 bytes
SHA-256: 9732707b45c862b7a6ef8ea2418900def9be3650c6b325207d932644f64622ad

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