Malicious PDF — malware analysis report

Static analysis result for SHA-256 edb732bdd49ed2c6…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 18:20:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 20ae64beb2ea2251ae066e99cf7805b8 SHA-1: 6f464298c3c7ff3ee35541a8e90e9a0a6a05b7ba SHA-256: edb732bdd49ed2c655adb80c46576176ee98fa3f619e3eb78e2e30c424a59de6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as "free generator / game hack" lures. These links likely lead to further malicious content or phishing pages. The document's content and embedded URLs strongly suggest a social engineering tactic to trick users into visiting potentially harmful websites.

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/free-coin-master-spins-2021-game-hack In 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/conquerors-3-hack-roblox_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/100-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-100-robux-2021_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-robux-2021-no-wait-time-not-fake-instant-february_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-robux-100-working-no-verification_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-free-spins-link-cheat_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-robux-using-inspect_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/hackear-coin-master-sin-verificacion_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/how-to-get-free-airpods-tiktok_GM835599320.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/robux-free-online_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/bugmenot-roblox-hack_GM431946152.pdfIn PDF document text
    • http://simon-skov-fougt.dk/billeder/free-spin-coin-master-2021-link_GM406889139.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
stream_002_off00002fcd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FCD 23168 bytes
SHA-256: c85e9a7748d91f59cab5cc56deaff2ee29f5b91f15b5536ca4f7874d6cbd8b5d
font_01_sfnt_off0000641c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x641C 18576 bytes
SHA-256: b91ca07aeadef02c4833a5be8b217bc3af90c6c550000b8c217b6d13a7f4cb5d

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