Malicious PDF — malware analysis report

Static analysis result for SHA-256 910927063b6961ed…

MALICIOUS

PDF

34.9 KB Created: 2021-06-29 08:33:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 66afeb44e6bd3301d6dbe13922e90c53 SHA-1: 88e2c61f4d748749fe068aee74df8d678c25db4d SHA-256: 910927063b6961ed48317e06b0d8be5fdb7dbc5c39a1755d6af405be80188ce5
142 Risk Score

Malware Insights

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

This PDF document is designed as a lure, employing a 'game hack' theme to trick users into clicking malicious links. The document contains a large number of external links, many of which point to websites offering 'free generators' or 'hacks' for popular games like Roblox and Coin Master. These links likely lead to further scam pages or potentially malicious downloads.

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.co/app/431946152/how-to-hack-back-a-roblox-accunt-game-hack PDF link annotation
    • https://pustaka.mic.sch.id//repository/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/minecraft-bedrock-free-download_GM479516143.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/free-robux-please_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/roblox-hack-apk-download-android_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-attack-hack_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/robux-hacks-online-generator_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/how-to-hack-roblox-booga-booga-on-mac-2021_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/dragon-ball-af-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/hack-tools-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/coin-master-hack-ios-app_GM406889139.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/come-hack-my-account-youtube-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id//repository/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • https://pustaka.mic.sch.id/repository/get-free-robux-and-tickets_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_off00003126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3126 22540 bytes
SHA-256: 75dc70585e624613ccb51ead9610c9a8b02c87ba4006a4000d02ea60dfdf3bc4
font_01_sfnt_off00006348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6348 19064 bytes
SHA-256: b35f71b2d22a041fb586b46b1dfcbdcc43c002b450c252567e005d24a7b7cfd3

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