Malicious PDF — malware analysis report

Static analysis result for SHA-256 004ff8bd6b5b2254…

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 16:35:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 3561043d8972c6335862dddc188f909a SHA-1: 4fe14d02a8d8a167ee7a44062e355539a3983902 SHA-256: 004ff8bd6b5b2254d73c0009205c40432db182e6c8585c1d827f31746b3b6c61
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to websites that are flagged as malicious redirectors, specifically promoting 'free generator / game hack' lures. The document body and extracted URLs indicate a phishing attempt, likely to trick users into visiting malicious sites for in-game currency or cheats. No scripts were extracted, but the presence of malicious redirector links and the lure content strongly suggest 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/431946152/roblox-skins-boy-free-game-hack In PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/fre-click-tp-roblox-script_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/does-coin-master-hack-work_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/como-hackear-roblox-com-cheat-engine_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-hack-robux-generator-ipad_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/v3rmillion-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-bee-swarm-simulator-tabby-bee-cheat_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-roblox-songs-music_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/minecraft-client-download_GM479516143.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-hack-week-2021-download_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/roblox-r2da-hack-script_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/how-to-get-a-free-bighead-in-roblox_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/pokemon-go-free-3d_GM1094591345.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/free-quad-bike-roblox-bloxburg_GM431946152.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/pubg-uc-number_GM1330123889.pdfIn PDF document text
    • http://sdn4-wates.sch.id/akasia/repository/coin-master-hack-spins-and-coins-unlimited-free-download_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
font_00_sfnt_off00002f8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8C 22576 bytes
SHA-256: 48a259cbddd55d35dbbcc2c71c135c4fd00dc5f4cfb8285af8b3337467d0821a
font_01_sfnt_off00006200.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6200 19120 bytes
SHA-256: 87f11882065a11dd5229d54294e4ab189cd77cd0e946166ec6c2e7e4f486ae8f

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