Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea628c271a0bd433…

MALICIOUS

PDF

35.7 KB Created: 2021-06-27 00:56:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 6da5377d573348b3dc6a9ac202e3ade5 SHA-1: 29807a0b32a87654eb294c3f8c8d16ac86aa33b0 SHA-256: ea628c271a0bd433e4b387e237b6d73efbaa641e2b9dc69fbc5dd3b98ba3f76d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a link that redirects to known malicious infrastructure, masquerading as a game hack generator. The document body and heuristics indicate a lure to download or access potentially harmful content. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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/hacks-para-mining-simulator-roblox-tokens-game-hack In PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-hack-a-roblox-account-august-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-esp-cheat-table_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-game-hack_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-game-called-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/best-way-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/why-cant-i-use-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/how-to-hack-into-roblox-groups_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/roblox-free-hats-code_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/minecraft-for-laptop-free_GM479516143.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/robuxhub-net_GM431946152.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://library.itekes-bali.ac.id/repository/coin-master-free-spins-save_GM406889139.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_off0000339f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x339F 22348 bytes
SHA-256: e16c66de8adf197dcdacb65d058fd6363e92c01b698984f6a724308b6b1a17fc
font_01_sfnt_off0000652d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x652D 19632 bytes
SHA-256: b2331a64579c220d9484247e26d67765b0e02143351dd2406e730a01264c44f0

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