PDF static analysis report

Static analysis result for SHA-256 c79b25923372f999…

SUSPICIOUS

PDF

36.0 KB Created: 2021-05-20 23:41:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 38c226f9e50f036fb7feadb794b51d11 SHA-1: 5c45166419c2117b726ddddfa1e6b2775e455b3a SHA-256: c79b25923372f999f43c74a4090c6b238bf7c777c5317644f80e28d9fec84e18
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for a fake download, indicated by the 'SE_DOWNLOAD_BUTTON' heuristic and the document body text. It also includes an external URI pointing to a suspicious URL, which is likely intended to deliver a second-stage payload. The ML classifier also flagged the PDF as malicious, increasing confidence in its malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 3

  • 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/479516143/how-to-make-a-minecraft-server-for-free-game-hack PDF link annotation
    • http://whiteyaknepal.com/userfiles/files/how-to-get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/free-robux-android_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://whiteyaknepal.com/userfiles/files/freespinandcoin_GM406889139.pdfIn PDF document text
    • https://code.giftcards.comIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off000034b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34B4 24520 bytes
SHA-256: 338dc522170b14ec9ec814f8d8125cd6d71fd5f17e2aa913202e7d3aecf9f8b8
font_01_sfnt_off00006bbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BBD 18156 bytes
SHA-256: 7ebd6cc6f7d73451d43dfe99dc02d56d86c4e3c51693199467050b16fbe82799

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