Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4d9f5502329122c…

MALICIOUS

PDF

33.3 KB Created: 2021-07-05 11:49:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 896aefea58bdc9e1675a922dd41bd365 SHA-1: 1b2e2010ee52cc9bb8db48b8fa88b8f94e474956 SHA-256: b4d9f5502329122c9800fea42153881c144be97a618b0f2b828576bf29618e76
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a high-severity heuristic firing indicating it links to a 'free generator / game hack' redirector. The document body and extracted URLs reinforce this, pointing to a lure for game-related cheats. The primary IOC is the malicious URL used in the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/479516143/minecraft-pc-free-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id/repository/roblox-speed-hacks-that-u-can-t-in-chaty_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/como-hackear-cuentas-de-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/art-money-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-peoples-accounts-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-hack-roblox-admin-commands-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-game-thumbnail_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/robux-gratis-funciona-hack-sin-cortes-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/hack-app-data-roblox_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/games-in-roblox-that-give-you-free-items_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/check-cashed-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-btools-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-font-free_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-duplicate-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-free-robux-simulator_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_off00003066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3066 21832 bytes
SHA-256: d49bcd2f42336d2ac51d61663105fbac661f5ab18dd46756dbc4f79444cbc34c
font_01_sfnt_off0000605c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x605C 18008 bytes
SHA-256: 7b53852c349be1bc084196235092269a717ad06b6af355bc11c1fdb457e3227a

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