Malicious PDF — malware analysis report

Static analysis result for SHA-256 45e59fac0a57f031…

MALICIOUS

PDF

56.5 KB Created: 2021-06-09 10:31:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 626c81c8bd0899ceae4a49b48abfd2c7 SHA-1: 552ce116714945f362fd3530fe2f7783dbed0899 SHA-256: 45e59fac0a57f031dbef940a823358bfbc7e877eb07f50282f5cf66bb87fbc16
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free generator / game hack' which redirects to a malicious URL. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to trick the user into downloading potentially malicious content. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9325

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 https://netcdn.tw/app/431946152/free-roblox-generator-game-hack PDF link annotation
    • http://condit-pack.com/images/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://condit-pack.com/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://condit-pack.com/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-robux-not-fake-2021_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-roblox-hacks-phantom-forces_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • http://condit-pack.com/images/free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/roblox-free-wings_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://condit-pack.com/images/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-robux-today_GM431946152.pdfIn PDF document text
    • http://condit-pack.com/images/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://condit-pack.com/images/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004c7c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C7C 40204 bytes
SHA-256: 7200e20b5b3cfc95d445eee51ad172cbd9645fc56d92d8c36f63a94a8c8cd309
font_01_sfnt_off0000a27e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA27E 3112 bytes
SHA-256: 471f662098e83c5562504503f5e7603b336ca0957605358090bb98e15c7aed80
font_02_sfnt_off0000ad33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD33 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off0000ba45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA45 18280 bytes
SHA-256: a933d21998376b1e1789d4c480c6983ef3f135197d1bc74c37b8b8f8713ff5e6

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