Malicious PDF — malware analysis report

Static analysis result for SHA-256 2daa37cb1830f946…

MALICIOUS

PDF

35.8 KB Created: 2021-05-30 01:29:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-14
MD5: b81eaa3f39af0dce1b1df0182c134b1b SHA-1: cfbb8423a9dac3fc59061f18265e2c2789fef383 SHA-256: 2daa37cb1830f9468abe67ff3ad9538e0aaa0bb08893d9f173294f329848f1ed
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as "free generators" or "game hacks" to entice users. The primary lure URL is https://netcdn.xyz/app/835599320/free-tiktok-likes-no-human-verification-or-download-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering attack aimed at driving traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9627

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/835599320/free-tiktok-likes-no-human-verification-or-download-game-hack In PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/how-to-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/free-tiktok-likes-without-verification_GM835599320.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/free-tiktok-views-no-verification_GM835599320.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • https://vissalutis.pl/wp-content/uploads/fsqm-files/free-24-7-minecraft-server_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_002_off0000323e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x323E 24040 bytes
SHA-256: 3622a1fc64cce4b12a2319291014564b4b0ff042319bf8ed192a8f0b7d12c124
font_01_sfnt_off000068e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68E5 18796 bytes
SHA-256: 3d40c2c610592f010e994df70d6dca89d92a7e9c48723e1cae8d3a563b12c301

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