Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e2c8f53e70a1e09…

MALICIOUS

PDF

35.5 KB Created: 2021-06-19 09:04:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: bc07a7c3f6e77d9bdc646877da60407a SHA-1: 5ac557b437b65801773d6a86e0e48fa35c75fd40 SHA-256: 2e2c8f53e70a1e09c4f2a9d598477c80e1e29b4077d4b20f1cc69f9c03b73eb2
180 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure of game hacks and generators to trick users into clicking malicious links. The document contains multiple embedded URLs, including one pointing to a known malicious redirector and another using an IP address, which likely serve to download further malicious content or redirect to phishing sites. The ML classifier strongly indicated maliciousness, supporting the observed redirection and lure tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • 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/how-to-hack-lvl-dragon-ball-final-stand-roblox-game-hack In PDF document text
    • http://103.40.122.33/akasia/repository/checkmein-free-roblox_GM431946152.pdfPDF link annotation
    • http://103.40.122.33/akasia/repository/roblox-get-any-item-off-the-catalogue-for-free-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/hack-piano-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/real-roblox-lumber-tycoon-2-hack-download-2021_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-free-tiktok-coins_GM835599320.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/dark-roblox-hacking_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/hack-para-jailbreak-roblox-pc_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/paginas-para-hackear-en-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/roblox-full-version-free-download-apk_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/acount-info-for-roblox-hack-with-robux_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/robux-hack-2021-admin-codes_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-to-get-halo-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://103.40.122.33/akasia/repository/minecraft-pvp-hacks_GM479516143.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
font_00_sfnt_off00003265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3265 22228 bytes
SHA-256: e5b327886f4753722cfe2264282d1170caa1fd762a611db26908535c970f1272
font_01_sfnt_off000063d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D5 19664 bytes
SHA-256: 46afad846684f0a7a904767fd897e8c604c40239669f970407b00f5c8517da56

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