Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8175de27f389754…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 15:01:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 99376bad3c3425660376cb2ecfcc5b4a SHA-1: 5f871f94d41dbcf86ad0fed2a0fe3ab7519846d5 SHA-256: f8175de27f38975431b8ed76607b2709a466b725823d61e4e735a12ef617826f
160 Risk Score

Malware Insights

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

This PDF document employs a lure related to game hacks and free currency generators, directing users to malicious redirector infrastructure. The primary IOC is the redirector URL http://netcdn.tw/app/406889139/coin-master-hackcom-xyz-game-hack, which is known to host malicious content. The document's structure and embedded links suggest an attempt to exploit user interest in in-game advantages to deliver further malicious payloads or lead to phishing sites.

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/406889139/coin-master-hackcom-xyz-game-hack In PDF document text
    • http://simon-skov-fougt.dk/billeder/hacked-hat-roblox-t-shirt_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/hacker-programm-roblox_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/backpacking-hack-roblox-v3rmillion_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-roblox-2021-accounts_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-unlimited-spin-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/robux-hack-ohne-handynummer-und-email_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-mod-version-free-download_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/roblox-robux-hack-online-2021_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-builders-club-roblox-script_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-free-raid-link_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-heaven-links-free-spins_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/2021-no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/how-to-get-free-pets-on-pet-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC3 22816 bytes
SHA-256: bb79deaf504e1d36fd37abaf788cb5751159b088850d29e2de58d799754dfe0e
font_01_sfnt_off000062e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E4 18752 bytes
SHA-256: 06ef631afbecbc1b5b7dcb8b3eb929a8944b6eea579e5c003e5febb126385d8e

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