Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e6e3de52eb3ef65…

MALICIOUS

PDF

33.7 KB Created: 2021-07-04 09:51:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e4d4bcda08b540852536a0241a63481c SHA-1: e2a9d4e990044a0603b4fa9d20a875995a7d53aa SHA-256: 1e6e3de52eb3ef65053be065c2008388f78b254898bac84230bf40deb86ed2d3
82 Risk Score

Malware Insights

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

This PDF document employs a lure related to game hacks and generators to entice users to click on embedded links. The primary link, http://netcdn.tw/app/479516143/tiktok-minecraft-hacks-game-hack, likely leads to a malicious download or a phishing page. The ML classifier strongly indicated maliciousness, and the PDF's structure and content align with social engineering tactics to achieve initial compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/tiktok-minecraft-hacks-game-hack PDF link annotation
    • http://digilib.stimata.ac.id/repository/lucky-patcher-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-discount_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-hacking-discords_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-script-hack_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-app-android_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-and-tix-generator-no-survey-or-download_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/spin-link_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/how-to-cheat-in-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/roblox-cheat-engine-god-mode-2021_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/noob-outfit-roblox-free_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/good-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/aimbot-download-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-apk-hack-3527_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • http://digilib.stimata.ac.id/repository/ro-ghoul-script_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_off000030ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30FF 21988 bytes
SHA-256: 1e1682872ae4e7c44213f20ce5c0ba4d9636a258aeed8d5ac35553835d5fe1bd
font_01_sfnt_off00006150.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6150 18168 bytes
SHA-256: 49b148a5ca756e3f3293ae7356a748e2214796aae6d20bfd78280b7e22c0c315

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