Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8d4deab89a2ebd3…

MALICIOUS

PDF

34.5 KB Created: 2021-07-03 18:38:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 991e4757e5b55eb9748e1c935dec50a7 SHA-1: 7d11ada25f43753bab93751369258f725d7672dd SHA-256: f8d4deab89a2ebd31f6a63cb3b3d59278cc5c79f72c80279d94ee23cbc9e9c2d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and generators to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. The document's structure and embedded URLs suggest a phishing or scam attempt, masquerading as a helpful resource.

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/431946152/aimbot-roblox-free-game-hack In PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/roblox-ban_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/free-lua-exploit-roblox_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/robux-codes_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/generate-bots-for-free-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-ipad-or-phone_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/free-coins-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/offers-for-robux_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/free-expert-sripters-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://www.elearning.mtsn2ska.sch.id/__statics/gudangsoal/files/free-robux-master_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_off00003263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3263 21828 bytes
SHA-256: 21aa90c2fac265842caa3aeed40cebc672623d497d1ce9af986e0c7617a90de3
font_01_sfnt_off0000624f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624F 18948 bytes
SHA-256: a73a5836861f0179f1192add3ad3e7ab8ef77876eb27eee4319a78afe112f935

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