Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebc3b5793df65459…

MALICIOUS

PDF

47.2 KB Created: 2021-05-11 02:36:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 70ce48ab6a4b334be53ce6bb434b2198 SHA-1: b27e8bfda9537aed954cdd0305a2eff5ed9c1380 SHA-256: ebc3b5793df65459cbc4856e75db93e1bc014222ac5af1393d32776745790643
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document contains multiple embedded URLs and a prominent link in the document body, all related to game hacking. The ML classifier also flagged this PDF as malicious. The presence of a 'download button' heuristic and the overall theme suggest a lure to a malicious website, likely for malware distribution or phishing. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.xyz/app/406889139/how-to-hack-coin-master-pc-game-hack PDF link annotation
    • http://pustakasma.nurulfikri.sch.id/repository/roblox-play-as-guest-free_GM431946152.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/what-is-exploiting-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/como-hackear-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/coin-master-free-spin-app-reviews_GM406889139.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/roblox-free-hair-codes_GM431946152.pdfIn PDF document text
    • http://pustakasma.nurulfikri.sch.id/repository/coin-master-hack-2021-free_GM406889139.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_003_off00004e9c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E9C 26200 bytes
SHA-256: f796505ab31e0310b6f2a9fdf4ce789bba9a8c851585602dfa2092477c030f7a
font_01_sfnt_off00008bab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BAB 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off000096d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96D5 18036 bytes
SHA-256: 1a818eca8a2cc351c403d69ccdd0c2c8a1d28d4754b907fab6e3d6b2894c5913

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