Malicious PDF — malware analysis report

Static analysis result for SHA-256 095cd481f0a095a8…

MALICIOUS

PDF

46.6 KB Created: 2021-06-08 13:49:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 59dade2b1d405d57f5b5e82c258c57c1 SHA-1: 36e2f83454f9750fa1da091066281a2e86a88f24 SHA-256: 095cd481f0a095a8d44cb58b593288da1c2b07c71c80d603a4d2bbba52ab7981
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to malicious infrastructure, masquerading as a lure for game-related cheats. The heuristic firings indicate the document is designed to lead users to potentially harmful content. Although no scripts were explicitly extracted, the PDF structure itself facilitates the redirection, aligning with common techniques for distributing malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.tw/app/431946152/free-roblox-police-uniform-game-hack In PDF document text
    • http://apostolosandreaslemesou.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/will-tiktok-free-view-bot_GM835599320.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-minecraft-realm-codes_GM479516143.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-robux-please_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/code-free-robux_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/coin-master-pet-food-free_GM406889139.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/free-tiktok-followers-no-human-verification_GM835599320.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/roblox-games-that-you-can-play-online-for-free_GM431946152.pdfIn PDF document text
    • http://apostolosandreaslemesou.com/images/microsoft-roblox_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
stream_004_off0000502a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x502A 30108 bytes
SHA-256: 90f6c0357df30c44462fbda7263a4027f833b5f1ac43f00d1ab06040da3f2c8a
font_01_sfnt_off000092d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92D5 18668 bytes
SHA-256: bf6c91ecfd26ff42dc0e9bc0b18650642dd2b802277c4a0f56e85044f8a148f6

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