Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbd5a3f1c6bd4f10…

MALICIOUS

PDF

44.8 KB Created: 2021-05-14 00:11:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 700a0a63181fbed055cc8f9cce935dde SHA-1: 4cd478028076cd938ddcbcdf142c82fc8ee7d9ed SHA-256: cbd5a3f1c6bd4f108f3115327c07f678e27717554538cf5c0db08b2a6bf3b060
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a 'game hack' or 'free spins' generator. The primary link redirects to malicious infrastructure, indicating a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lead the user to a malicious website, likely for credential harvesting or further malware delivery.

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/406889139/coin-master-facebook-free-spins-game-hack In PDF document text
    • https://zszolesno.pl/images/earn-robux-websites_GM431946152.pdfIn PDF document text
    • https://zszolesno.pl/images/get-free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://zszolesno.pl/images/coin-master-tiradas-gratis-link_GM406889139.pdfIn PDF document text
    • https://zszolesno.pl/images/coin-master-hack-com_GM406889139.pdfIn PDF document text
    • https://zszolesno.pl/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://zszolesno.pl/images/coin-master-fan-page_GM406889139.pdfIn PDF document text
    • https://zszolesno.pl/images/how-to-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://zszolesno.pl/images/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
    • https://zszolesno.pl/images/mcmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://zszolesno.pl/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • https://zszolesno.pl/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://zszolesno.pl/images/make-free-robux_GM431946152.pdfIn PDF document text
    • https://zszolesno.pl/images/coin-master-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • https://zszolesno.pl/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://zszolesno.pl/images/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
    • https://zszolesno.pl/images/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://zszolesno.pl/images/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • https://zszolesno.pl/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://zszolesno.pl/images/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • https://zszolesno.pl/images/minecraft-handbook_GM479516143.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_off000048e3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48E3 25280 bytes
SHA-256: cfa88a111a8047e1fc523f2deab15098d7e7a5178e89be625bc0f5cbeb569ba1
font_01_sfnt_off000082d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82D7 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008c89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C89 18212 bytes
SHA-256: 79ee12bc65f558d17d18def7b629625fa8f5f9a2516006f928dbcf1d2ff3cc16

Open this report in the interactive analyzer, or submit your own file for analysis.