Malicious PDF — malware analysis report

Static analysis result for SHA-256 916c3755172f9136…

MALICIOUS

PDF

36.5 KB Created: 2021-05-25 09:04:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 7969d09ec7d2170aebe78386b4ecf64f SHA-1: 65a14d4f060507c19a56ddf6700637730b0c901c SHA-256: 916c3755172f91368d2cab4acc0bebde5c62836952510cbade7482fe14b0adf8
82 Risk Score

Malware Insights

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

The PDF document contains a lure impersonating UPS, directing users to click a link to download a Roblox hacking tool. The embedded link points to a malicious domain, and the document's content suggests it is designed to trick users into downloading potentially harmful software. While no scripts were directly extracted, the PDF structure and embedded URLs indicate a phishing and potential malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/how-to-hack-people-on-roblox-game-hack.
  • 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/431946152/how-to-hack-people-on-roblox-game-hack PDF link annotation
    • http://spentulib.com/search/repository/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search/repository/free-robux-scam_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search/repository/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://spentulib.com/search/repository/roblox-hack-download_GM431946152.pdfIn 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_off000030de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DE 25488 bytes
SHA-256: c4b6eedb6e858661e5f58691db51ef7cd3116cebb4602b4d330d2342dd990236
font_01_sfnt_off00006c33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C33 18676 bytes
SHA-256: 9439cdf519c477105af26a237b903c28353edd649090bb99f856962d56c9ecd1

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