Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ebea015ae98192e…

MALICIOUS

PDF

32.4 KB Created: 2021-07-21 04:12:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 11468801f18633235e144b48dbd17918 SHA-1: d89c7c9c1b19cc2cb245d5302e4f77e3a722909f SHA-256: 1ebea015ae98192ef275b9e56ce50a3d32379018c5b4b15732a20280631a2d8c
160 Risk Score

Malware Insights

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

This PDF document employs a lure of free game hacks and generators to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, likely serving as a gateway to further malicious content or exploits. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit user interest in free game-related content for malicious purposes, potentially leading to drive-by downloads or further phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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.tw/app/479516143/minecraft-launcher-free-game-hack In PDF document text
    • https://abouttimetech.com/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/free-tiktok-followers-app_GM835599320.pdfIn PDF document text
    • https://abouttimetech.com/images/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://abouttimetech.com/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • https://abouttimetech.com/images/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • https://abouttimetech.com/images/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://abouttimetech.com/images/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://abouttimetech.com/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://abouttimetech.com/images/free-robux-without-human-verification_GM431946152.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_off00002dad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DAD 22088 bytes
SHA-256: 6df46e2adea86c8842ef23e262666da999288fe669a4ca47668f0021e533f3be
font_01_sfnt_off00005e2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E2E 17872 bytes
SHA-256: d837b145e961d25029e35f3a46fce907c35d402980f977a4958a38d6468d5501

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