Malicious PDF — malware analysis report

Static analysis result for SHA-256 20502691bc989ce0…

MALICIOUS

PDF

44.5 KB Created: 2021-05-20 03:23:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 35cc21719f2c9d7c372169e8bf589ee4 SHA-1: 6ba96edaea39b171854508654e08a6602de989e6 SHA-256: 20502691bc989ce05002a847c25766ba4a4099a7e5e895a6c03287b337f730ef
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, including one that impersonates a game hack generator. The document body, though partially corrupted, contains references to these lures and embedded URLs. The primary function appears to be redirecting users to potentially harmful websites, likely for further exploitation or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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 https://netcdn.xyz/app/1094591345/pokemon-go-vs-free-fire-game-hack In PDF document text
    • http://famoirs.co.uk/images/coin-master-500-free-spins_GM406889139.pdfIn PDF document text
    • http://famoirs.co.uk/images/coin-master-free_GM406889139.pdfIn PDF document text
    • http://famoirs.co.uk/images/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://famoirs.co.uk/images/microsoft-store-robux_GM431946152.pdfIn PDF document text
    • http://famoirs.co.uk/images/robux-for-kids_GM431946152.pdfIn PDF document text
    • http://famoirs.co.uk/images/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • http://famoirs.co.uk/images/is-coin-master-hack-safe_GM406889139.pdfIn PDF document text
    • http://famoirs.co.uk/images/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdfIn PDF document text
    • http://famoirs.co.uk/images/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://famoirs.co.uk/images/pubg-uc-free-online_GM1330123889.pdfIn PDF document text
    • http://famoirs.co.uk/images/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://famoirs.co.uk/images/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://famoirs.co.uk/images/coin-master-free-spins-moonactive_GM406889139.pdfIn PDF document text
    • http://famoirs.co.uk/images/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://famoirs.co.uk/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://famoirs.co.uk/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://famoirs.co.uk/images/www-coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://famoirs.co.uk/images/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://famoirs.co.uk/images/coin-master-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://famoirs.co.uk/images/coin-master-free-spins-2021_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004844.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4844 24524 bytes
SHA-256: 2b2bca75884e7005eec8bed8297305bb4ef04419764503c92ed49c4b6620849d
font_01_sfnt_off00008024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8024 3436 bytes
SHA-256: 97acb3dfe99d8aca5d6f8db8393b488ed98b2263432579da10c481344d87daf1
font_02_sfnt_off00008c3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C3B 18096 bytes
SHA-256: 0a81e63175939d6d5183926d900de30c9c410f7c1713330c8cf5776d83007754

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