Malicious PDF — malware analysis report

Static analysis result for SHA-256 02c46d1427d25f41…

MALICIOUS

PDF

44.8 KB Created: 2021-06-11 00:31:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ca4c6e5e7b68ee608b240522c9eeb652 SHA-1: a28f6669346502b43cb0e742488db467d160c087 SHA-256: 02c46d1427d25f41b96cad3974aa72beb22fff8bd5c6ca109ce7dd420522a5bc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to websites offering game hacks and generators, a common lure for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the presence of external URIs and a download button lure reinforces this assessment. While no scripts were explicitly extracted, the document's structure and embedded links suggest it is designed to lead the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/roblox-phantom-forces-hacking-scripts-game-hack PDF link annotation
    • http://perpustakaan-stikesmsb.com/repository/roblox-cbro-cheats_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-games_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-clothes-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/cheat-engine-roblox-phantom-forces_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-generator-no-human-verification-android_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-free-spin-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-free-spins-and-coins-link-haktuts_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/coin-master-hacks-for-gold-cards_GM406889139.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan-stikesmsb.com/repository/minecraft-java-server-hosting-free_GM479516143.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_off00005056.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5056 24656 bytes
SHA-256: cf1077394dd99681b39f9dae81db16562e6b57d5d7840662f138c7fbbb9da98d
font_01_sfnt_off000088d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88D6 19616 bytes
SHA-256: 2c2d59b440da6bc5b8099b0edd355749a22b469a23156902e53d52688a88e49a

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