Malicious PDF — malware analysis report

Static analysis result for SHA-256 92111ae6e3113751…

MALICIOUS

PDF

43.8 KB Created: 2021-06-04 00:15:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 87701972a9c180f657d63c2971acb2dd SHA-1: e44d01d9b08c28b6fd2210891b1a2128f030c68e SHA-256: 92111ae6e31137512f7bc60e64aad730729c21c65b980818ee5830eaf344c96b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'Coin Master Hack' and 'Robux' generators. The heuristic firings confirm these links point to known malicious redirectors and lure users with game-related cheats. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent, likely leading to further malware downloads or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/coin-master-hack-online-no-human-verification-game-hack In PDF document text
    • http://library.yamasi.ac.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/get-free-robux-gg_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-roblox-executor-no-key_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-spins-link-october-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-coin-master-stuff_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/hack-xp-net-generators-coin-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-firebird-card-free_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-story-mode-free-download_GM479516143.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
stream_004_off00004d70.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D70 25400 bytes
SHA-256: 45b94a1b736a944a9cfbd72db079f3d33ac5c55d059f667fdbcbafd189e6db0e
font_01_sfnt_off0000884c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x884C 18324 bytes
SHA-256: 44fb42a750761b479d1ff9d84c79b576d569f1302724d8c024f9fb96550a5546

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