Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac27aedbae1a86ae…

MALICIOUS

PDF

34.3 KB Created: 2021-06-23 06:46:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 41eb60963737abb594c18bd4e78c479c SHA-1: b2c8982d80fcc4ad13d65b54b050d946485d3610 SHA-256: ac27aedbae1a86aee61f450d877472670ac4577423e91688c88512e27da5b1c9
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and document body text promoting game hacks and cheats, directly linking to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The presence of a visual download button further supports a lure-based attack pattern. No scripts were extracted, but the primary threat appears to be directing users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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/roblox-hack-999.999-robux-cheat-engine-game-hack In PDF document text
    • https://www.repository.ptiq.ac.id/repository/how-to-get-free-robux-insert_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/roblox-login-hack_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/dragon-blox-x-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/speed-hack-assasin-roblox_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/coin-master-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/coin-master-hacks-xyz_GM406889139.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/free-games-coin-master_GM406889139.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/minecraft-hax-download-no-virus_GM479516143.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/coin-master-online_GM406889139.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/roblox-girl-shirts-free_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/roblox-grand-blox-auto-hack_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.repository.ptiq.ac.id/repository/free-money-boku-no-hero-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F63 21996 bytes
SHA-256: 0d50d5b13694fea982820f9ad9c540d3454da3b77fd7f2e7ea77d3f1d4ad9cd2
font_01_sfnt_off00005fc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC6 19416 bytes
SHA-256: e082101329147294be3a9a33b8c213d231c07ca3dae086b849f418f75d5291cb

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