Malicious PDF — malware analysis report

Static analysis result for SHA-256 55ad9b6030a43be6…

MALICIOUS

PDF

33.2 KB Created: 2020-06-17 05:12:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51bee1a8880238ffbe9543df2d3b333b SHA-1: e8e54245f96777eced0e6c4f558080e14e7892d2 SHA-256: 55ad9b6030a43be6572434bdab37e903fc8a17cd5e7fb1dea9405c5b60b4397d
62 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded external links, a technique often used for SEO spam or to redirect users to malicious websites. The heuristic PDF_SEO_LINK_FARM specifically identifies this pattern, indicating a high likelihood of malicious intent. No scripts were extracted from this sample, limiting the ability to determine further payload delivery or execution methods.

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.
  • 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 http://whyatt.couhigpartners.com/uploads/1/3/0/6/130639766/130639766.html#sad+guitar+song+tutorial
    • http://laurennorthgraves.com/uploads/1/3/0/7/130776102/8413158.pdf
    • http://asianpaedsderm.org/uploads/1/3/0/4/130435757/563b280.pdf
    • http://johntblountdds.com/uploads/1/3/1/3/131381881/delulagisivovase.pdf
    • http://vcorganicslv.com/uploads/1/3/1/3/131379262/kotigud_livozokosovenu_noluzavurumaze_lonimozi.pdf
    • http://mail.evylareau.com/uploads/1/3/0/3/130379740/18e6f1bdc6635fe.pdf
    • http://mail.browbeginnings.com/uploads/1/3/0/8/130815381/mofekud.pdf
    • http://mollyparizeau.com/uploads/1/3/0/9/130969760/5018733.pdf
    • http://lawofficeofterranceltoavspllc.com/uploads/1/3/0/3/130313241/kolumejur.pdf
    • http://stephonjohnson.com/uploads/1/3/0/6/130604885/rugutidivo-divijekuxiguv-govatewekepo-napojej.pdf
    • http://medicalmanagerforum.com/uploads/1/3/1/3/131384025/kofiwipase.pdf
    • https://m.facebook
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004915.bin
dfc925a8ddffd588009a09b0a63776ef3bac818a626e2c7e00e9335f48aceed0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4915 4860 bytes
font_01_sfnt_off0000598d.bin
d1c79be209e9b2a34b423a46622326f5da65c65573ac2905f7d106a6ff8cbf16		 pdf-font-stream PDF embedded font (sfnt) at offset 0x598D 9120 bytes

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