Malicious PDF — malware analysis report

Static analysis result for SHA-256 34625e06ba6bec50…

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 23:43:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6adaae449ecba836058c7d06daee6d18 SHA-1: baa75f636111cfbb2716d3ee6d07c00ca0bdafe5 SHA-256: 34625e06ba6bec50a127bcf18947047b0318caf186b5db3b876836914e1d019c
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of game hacks and free in-game currency to trick users into clicking malicious links. The document contains a link farm of 28 similar PDF files hosted on various domains, all designed to redirect users to scam pages. The primary malicious URL identified is http://netcdn.tw/app/406889139/working-coin-master-hack-game-hack, which likely serves as a gateway to further malicious content or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/406889139/working-coin-master-hack-game-hack PDF link annotation
    • http://library.apsidoarjo.ac.id//repository/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-generator-com-oprewards_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-modded-roblox-games_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-robux-free-sin-pastebin-2021-con-jugar_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-without-getting-banned_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-robux-games-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-roblox-in-game-hacks-download_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-do-you-get-free-robux-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-get-free-robux-208-legit_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-visual-cheats-script_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/roblox-hack-tool-game-android_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/restaurant-tycoon-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id/repository/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://library.apsidoarjo.ac.id//repository/coin-master-gift-hack_GM406889139.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_off00003277.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3277 22904 bytes
SHA-256: cd567f0a3fef86c0357ce602f194346cb3eef1207ac67d9dd1c6b946e4f0ce66
font_01_sfnt_off000065db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DB 18204 bytes
SHA-256: 2f3fc4cea7c667aba6bd4fbad35a90c469a811863d2ececabae30f54f8a6c622

Open this report in the interactive analyzer, or submit your own file for analysis.