Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ce01d4d43018321…

MALICIOUS

PDF

37.3 KB Created: 2021-05-22 13:17:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 5831592b00c6073787efe0f48f389055 SHA-1: a1c2845ed12159fbb99c2c587a10f2023a4a2053 SHA-256: 2ce01d4d430183210d71a089de6aeee8499a4608a08b91bb051bd7088aaffb03
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, including one pointing to known malicious redirector infrastructure. The document body and heuristics indicate a lure for 'free generator / game hack' content, designed to trick users into clicking malicious links. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to redirect users to potentially malicious sites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/479516143/free-minecraft-texture-packs-game-hack In PDF document text
    • http://elearnfactory.com/images/tiktok-free-to-watch-online_GM835599320.pdfIn PDF document text
    • http://elearnfactory.com/images/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://elearnfactory.com/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearnfactory.com/images/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://elearnfactory.com/images/free-robux-no-verification-2021_GM431946152.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_off00003641.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3641 25240 bytes
SHA-256: cf4c38718aba4366d44daefc0a8d57d1f3be48776378321b7970889f89a9c7ce
font_01_sfnt_off000070b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B1 18240 bytes
SHA-256: f1e7a9ae3acfaa3d56f6a9afcdcc307065316a5e3d8814942fd3993c062bfaf5

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