Malicious PDF — malware analysis report

Static analysis result for SHA-256 a566a80d223340ec…

MALICIOUS

PDF

32.3 KB Created: 2021-06-30 22:14:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: addc314a6064efcb74a4ed00800042a0 SHA-1: 5a3d66fc1fe394891d0d9b1047fca754a2a902d5 SHA-256: a566a80d223340ecc3ee4dbf157e233faa801eef1869fb461bb3d3fe2b56ad10
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to redirectors, which in turn point to pages offering free game currency or hacks. The heuristic firings indicate that these links are associated with malicious redirector infrastructure and lure users with game-related content. The document body explicitly contains a call-to-action for a 'ROBUX GENERATOR', reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/free-cool-tshirt-roblox-game-hack In PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-free-robux-no-hacks-gliches-or-troll_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-free-robux-without-surveys_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/hack-infinitos-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/hack-master-coin_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spins-daily-link-updated_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/redeem-roblox-cards-free-codes-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/www-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/mathep_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/daily-spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/an-easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/apk-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/minecraft-net-free_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
font_00_sfnt_off00002a2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A2D 21580 bytes
SHA-256: 328fb9a489292fe1fb71ee1b2033375ec4fb8489b9bdcbee9e1c9841f42f1312
font_01_sfnt_off0000595d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x595D 19040 bytes
SHA-256: 618a22fbe87bfc1918748349c657fa2fede93403242a85d3db1f7f71f14fb053

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