Malicious PDF — malware analysis report

Static analysis result for SHA-256 baeb40bed4e6f3c4…

MALICIOUS

PDF

44.5 KB Created: 2021-05-13 20:42:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: d9a36596b9ea083bab1e048bbc985b49 SHA-1: 9b8e19d6206102dc2b9aade40969d86026a0323b SHA-256: baeb40bed4e6f3c4924543c676e4cd5defb2e5c6fe6784f0597d2b4d30eeca1d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator' or 'game hack' lures. The primary URL identified, https://netcdn.xyz/app/406889139/haktuts-2021-coin-master-free-spin-link-game-hack, is flagged as a malicious redirector. The document body, though partially corrupted, contains references to similar lures and the authoring application, suggesting a deliberate attempt to trick users into visiting potentially harmful sites.

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/haktuts-2021-coin-master-free-spin-link-game-hack In PDF document text
    • http://italyfixer.com/images/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/haktuts-coin-master-free-spin-link-today_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/free-modded-minecraft-server_GM479516143.pdfIn PDF document text
    • http://italyfixer.com/images/roblox-2021_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://italyfixer.com/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/gaming-dunia-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://italyfixer.com/images/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/50-000-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • http://italyfixer.com/images/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/free-minecraft-mods-for-xbox-one_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_off00004716.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4716 24860 bytes
SHA-256: 1b01c16afc9a35e6e6b744388e0d91fe667858bfbb2c31be6bb4931a9020aebf
font_01_sfnt_off000080bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80BD 2820 bytes
SHA-256: 96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
font_02_sfnt_off00008a5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A5D 18600 bytes
SHA-256: 0377bed8f11e9d33b4e58dd3bbc318f67a9398bad3c38ecff466878595338458

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