Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ce389dc546eb113…

MALICIOUS

PDF

35.1 KB Created: 2021-06-26 00:13:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 2ecfe3e78b2ab8789e1267599f42f574 SHA-1: ecdc101ccf9c115da4bfb93af46e2817ddf22a3b SHA-256: 5ce389dc546eb11308396e1a2088bfedda00402772a9c51235849bb9d818870e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of 'game hacks' and 'free generators' to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves further malicious content or downloads. The document body and heuristics confirm the intent to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/431946152/how-to-change-your-password-on-roblox-for-free-2021-game-hack In PDF document text
    • http://digilib.stiki.ac.id/repository/coin-master-hack-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/coinmaster-free-cards_GM406889139.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/new-roblox-nolcip-hack-2021-march_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/coin-master-hack-without-human-verification-india_GM406889139.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/coin-master-free-link-spin_GM406889139.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/how-to-get-free-snacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/how-to-gear-hack-roblox-where-you-can-destroy-things_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/free-robux-phone-number-verification_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/free-robux-no-verification-no-download_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/coin-master-50-spin-link_GM406889139.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/coin-master-cards_GM406889139.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/earn-rbx_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/free-candy-van-mesh-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://digilib.stiki.ac.id/repository/pokemon-go-free-download-apk_GM1094591345.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_off0000305e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x305E 22224 bytes
SHA-256: 6b7888caedb35a0a0eacd6e29514ba0fe1d7bc879d5d0f3303db3c825eee0a71
font_01_sfnt_off00006143.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6143 20012 bytes
SHA-256: 2f6a7fab06ff3534558b4ad25717acd3ca02ed462e974f9c18bee68bd1569c96

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