Malicious PDF — malware analysis report

Static analysis result for SHA-256 2296d8954e724f4f…

MALICIOUS

PDF

56.1 KB Created: 2021-06-07 09:54:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2c1bfbd251d5c77254080c9feaacfced SHA-1: cc396d9d07a08d2af23a396bb709ab992ea5e07e SHA-256: 2296d8954e724f4fe18502798230c0bd5f8e6784b8719c657e848d2ff5fc44dc
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 0.9323

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 https://netcdn.tw/app/431946152/how-to-change-your-password-on-roblox-for-free-2021-game-hack PDF link annotation
    • http://apostolosandreaslemesou.com/images/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-roblox-gear_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/roblox-games-that-you-can-play-online-for-free_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/code-free-robux_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/app-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/pokemon-go-free-evolution_GM1094591345.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/coin-master-freebies-2021_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/robux-withdraw_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/coin-master-hack-uk_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-roblox-accounts-with-builders-club-and-robux_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/minecraft-windows-10-edition-free-with-java_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000561f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x561F 28224 bytes
SHA-256: 02e434a88731b425aafaf10e083802d1a1ee3e76e5c185a5c3ce403c43de94dc
font_01_sfnt_off000096ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96ED 3500 bytes
SHA-256: e49a868379cd3c37e631c5a53c010e21f38d803532a2b8417aee82315d4e8634
font_02_sfnt_off0000a28a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA28A 7272 bytes
SHA-256: f462303657ce1de10d3e7d5ae1fe17c8584116bd5bc216971166de87266da924
font_03_sfnt_off0000b3fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3FB 19828 bytes
SHA-256: d10c7bc1502f032fb6355a817cd351b2089f24fe77d8d580daca4b5364e5b41f

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