Malicious PDF — malware analysis report

Static analysis result for SHA-256 f68a096ac838c36c…

MALICIOUS

PDF

41.3 KB Created: 2021-05-12 21:40:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: e68dcce010f96f676d8c768d68b8ed22 SHA-1: ad46134ec7cf043744c07b4def5f5edfe0ee8e16 SHA-256: f68a096ac838c36c6e9c94dc2ebd31bdf28932bef6b5eb300a296a1820f03ed7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links that redirect to malicious infrastructure, masquerading as game hacks or generators for popular games like Roblox and Coin Master. The heuristic firings indicate these links are known malicious redirectors and part of a game hack lure. The document body, though heavily obfuscated, contains references to these lures and URLs, reinforcing the phishing attempt.

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/roblox-18-game-hack In PDF document text
    • http://italyfixer.com/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/gaming-dunia-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/coin-master-hack-spin_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/play-coin-master_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://italyfixer.com/images/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/roblox-free-clothes-girl_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/coin-master-map_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://italyfixer.com/images/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://italyfixer.com/images/free-spin-coin-master-game_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_off0000472a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x472A 24576 bytes
SHA-256: e2a35d7360ba0bc9d5928963c5ae2f93d7ca125dab5a466eefcd8a69f9628d6a
font_01_sfnt_off00007f42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F42 18100 bytes
SHA-256: b4983712f09b148f8a8b45296f8ff968c6e941a598ef477ab36d5db1dcb352e3

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