Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3cae229bdcccad1…

MALICIOUS

PDF

34.0 KB Created: 2021-07-04 21:08:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 4b6fe7241af521946f708f5f6c3bb6ae SHA-1: a45c319dac080ed90c7e37181c621fe93d6f7ce4 SHA-256: e3cae229bdcccad12ef592267c977a0ff7d29e313478d00133125a21915fc4eb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating it links to malicious redirectors and lures users with game hack generators. The embedded URL 'http://netcdn.tw/app/479516143/mcpe-game-hack' is identified as a known malicious redirector. While no scripts were explicitly extracted, the PDF structure and the nature of the lure suggest it's designed to lead the user to a malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/mcpe-game-hack In PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/minecraft-survival-free_GM479516143.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/joueur-de-hacker-sur-daycare-story-roblox_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-script-hack-trading-game-simulator_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/sign-up-today-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-unjailbreak-hack-executor_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/hackear-y-tener-robux_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-free-spins-8-14-2021_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/sex-cheat-codes-roblox-sound-id_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/google-only-roblox-items-free-2021_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-robux-2021-generator_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-unlimited-robux-hack-working-2021_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/lvl7-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-com-online-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-heaven-free-spins-today_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_off00003217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3217 22492 bytes
SHA-256: db7bbdef2da3ce650b0d546339614c88ee7bf483d10ab75aaf557c9ae277d1a4
font_01_sfnt_off000063d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D2 17808 bytes
SHA-256: bb08dbf34a52122f895504de6d0f043fb34325a43da687a59d3db3469e279ba9

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