Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab3d432a28280245…

MALICIOUS

PDF

49.0 KB Authoring application: QPDF
MD5: e1a438fea66fbfd7c617783f7c441975 SHA-1: c5bd191d783e590b784a28b17c57db04a0ec641b SHA-256: ab3d432a28280245aff142070b32a7be8d5b47c770cbd43b821fe271177a3d11
152 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious content. The PDF_SEO_LINK_FARM heuristic specifically identified a large number of external links, with the primary domain being luckycrazylife.com. These links are likely used to lure victims to phishing sites or download further malicious payloads. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • 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://luckycrazylife.com/uploads/1/3/0/6/130604145/d9e401f269b5.pdf
    • http://cairobritishcollege.com/uploads/1/3/0/3/130313237/02f24ed973cc0f.pdf
    • http://phonetac.com/uploads/1/3/0/5/130551692/xofevemoru.pdf
    • http://premedpursuit.com/uploads/1/3/0/5/130589338/2080488.pdf
    • http://arcadiagardensllclandscapinganddesign.com/uploads/1/3/0/6/130604127/130604127.html#devil+wing+ragnarok+mobile+quest+guide

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000122d.bin
fc27df492ec511f5230cf30602d072a334fb32666cd2ec3688847b4a6f8f5c81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x122D 9124 bytes

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