Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e7f6a39c953f211…

MALICIOUS

PDF

49.6 KB Created: 2021-06-10 21:19:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: dd957bce09ad45597787701bb2da06b6 SHA-1: 0f10cc2b80523c0dbe217dde337014394aefdb30 SHA-256: 2e7f6a39c953f211ddc09a0acbc9845a22a21ed5a97b0dc9df3cb3c91a679346
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains embedded links that redirect to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also flagged the document with high confidence. The document body and extracted URLs suggest a lure related to game cheats or hacks, aiming to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/cheat-codes-for-roblox-prison-life-2.0-game-hack In PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox-toy-codes_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-lovenet_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-tiktok-followers-2021_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-pet-food-links_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-unlimited-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/minecraft-windows-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/etok3-crab-roghoul-alpha-roblox-cheat-code_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-cheat-engine-62-robux-hack_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/create-own-free-skin-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/mistplay-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050e7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50E7 26680 bytes
SHA-256: e7c1a7c14db2c2a4da29890298a91d5f36386256434bdba92fe0734a336dae2f
font_01_sfnt_off00008f3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3B 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009c4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C4D 19256 bytes
SHA-256: 6b6e123920d1ef45b8b573e49fa711f53e5938ff88bb01b9f4d20c86e049d665

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