Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e00accd0f3bfe4d…

MALICIOUS

PDF

26.2 KB Created: 2021-07-04 22:38:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 89dcf1a61d5deeb83ecb2fb178c24c2d SHA-1: 231554745c2b959cf7cb9ab7c7017e97b715ef77 SHA-256: 6e00accd0f3bfe4d6d860caa2a3fb50737ed12d1d1d4890ce048411cbce3ec45
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites that claim to offer free in-game currency or hacks for popular games like Coin Master and Roblox. One critical heuristic identified a link to a known malicious redirector infrastructure, and another flagged a URI pointing to a raw IP address. The document body, though heavily obfuscated, contains references to these lures and embedded URLs, suggesting a social engineering tactic to drive users to potentially malicious sites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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-free-cards-2021-game-hack In PDF document text
    • http://103.40.122.33/akasia/repository/robux-free-hack-xyz_GM431946152.pdfPDF link annotation
    • http://103.40.122.33/akasia/repository/free-tiktok-followers-without-verification_GM835599320.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/tp-hack-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/best-legit-free-robux_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-hack-lumber-tycoon-2-on-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-on-ipad-ios_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-25-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/getgaming-resources-roblox-hack_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-roblox-codes_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-unlimited-free-robux-on-roblox-2021-jefftec_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/pretty-cheat-codes-roblox-id_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/pubg-uc-hack-apk_GM1330123889.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-hack-roblox-scripts_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/hacks-for-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-twitter-codes-for-assasian-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-grab-the-child-hacks_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000036b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36B6 24168 bytes
SHA-256: f9fdc9af7e469c66b67283f5139889e515993449947703d3d01134125525b5e3

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