Malicious PDF — malware analysis report

Static analysis result for SHA-256 e92c0546e7606806…

MALICIOUS

PDF

34.5 KB Created: 2021-07-10 01:14:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 2dc20b1833b1290cb95401fd10b4829a SHA-1: 961fcb587d05fee13b331087172966e6ad5bd6ed SHA-256: e92c0546e7606806cacb8c1d99c38fc7da1d59aa1eb93d216b89a506cbfa8101
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 'game hacks' and 'generators' for popular games. The heuristic firings confirm these links lead to known malicious redirectors and a general lure for game-related cheats. While no scripts were explicitly extracted, the nature of the links suggests a potential for further malicious downloads or redirects, aligning with a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-hack-no-human-verification-2021-game-hack In PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-roblox-short-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/dungeon-quest-hack-script-roblox_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-retail-tycoon-money-tree-cheat_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-toll-free-number_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/admin-hack-roblox-stat-chage_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/lifting-simulator-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-free-spin-best-link_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-best-hack-injectors_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-free-spins-hacktman_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-robux_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_off00003169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3169 22100 bytes
SHA-256: 5dce96d5501755e282a4664ed383d20a424120daf3edb593d1a95dbe7e49e48e
font_01_sfnt_off0000623b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623B 18940 bytes
SHA-256: a7529eedff3e399852376b8c12ef87d60bbe4ae3f7bf708f76a8d47e7c034202