Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4264fa8bd73a144…

MALICIOUS

PDF

35.5 KB Created: 2021-07-05 15:01:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: fe97bde3e78658f451e0f7e2ceb462cb SHA-1: abeadffd6656c598f5c393d5059882db73144b53 SHA-256: d4264fa8bd73a144778caddbd577cca0275a5626c65834dc359952cc5704a4b2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/how-to-get-free-robux-hack-2021-game-hack PDF link annotation
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/is-there-a-possible-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/are-there-any-roblox-hacks-that-actually-work_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/robux-apk_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/roblox-com-r_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/free-coins-for-flip-master-online_GM406889139.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/hacked-roblox-faces_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/play-roblox-free-online_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/lucky-patcher-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/gift-card-roblox-free-2021_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/roblox-apocalypse-rising-hack-script_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/moonactive-free-spins-link_GM406889139.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://elma.man2kotakediri.sch.id/__statics/gudangsoal/files/live-stream-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32A0 22288 bytes
SHA-256: d50469870233abb6c5dbe5dd4b0926bbb3db62fe16b4739f9436522bdec18169
font_01_sfnt_off00006402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6402 19556 bytes
SHA-256: f212cd4c9928ae438aa9e71512a10d010177ec0841fcd267cfedc658cf456714

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