Malicious PDF — malware analysis report

Static analysis result for SHA-256 273351434c767933…

MALICIOUS

PDF

120.9 KB Created: 2020-04-28 09:23:04 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4d56d881f6875e056afea3775125e54e SHA-1: 33bb696bb4aa6eafd5883cbd781eac7e8f4d5efa SHA-256: 273351434c7679331e5967c57d8a9a9ac8bb51fc58cd447df3fbcf47dfef02b2
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The primary purpose appears to be directing users to a network of websites, likely for malicious SEO or to serve as a landing page for further attacks. No scripts were extracted, limiting the analysis of direct payload execution.

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://fitsecretblog.com/uploads/1/3/1/6/131606492/131606492.html#upkar+1967+movie+songs
    • http://daytonmlslasertherapy.com/uploads/1/3/0/5/130590458/lilelif_xarumosumana.pdf
    • http://internationalinstituteforreikistudies.com/uploads/1/3/0/8/130814466/559b7490.pdf
    • http://caribbean-vending.com/uploads/1/3/0/5/130542972/pumupozubokamunaxasi.pdf
    • http://equestrianeliteatapplejackfarm.com/uploads/1/3/1/4/131453219/644df.pdf
    • http://redbeardfence.com/uploads/1/3/0/6/130621165/f1f7c499b2286c.pdf
    • 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013e19.bin
83e1d48b106cde3d7cf98c4adde47965238b65002f54870883209ea769fe1066
pdf-font-stream PDF embedded font (sfnt) at offset 0x13E19 10384 bytes
font_01_sfnt_off00016409.bin
5c2704ab79bd56917bdfac5b69fa868a43c8919f72acd79a61765044ef5bf41b
pdf-font-stream PDF embedded font (sfnt) at offset 0x16409 23916 bytes
font_02_sfnt_off0001afed.bin
6863a96a60f21cffb2307a03683761eda57505aaafc4b75afc3e3c5c85332461
pdf-font-stream PDF embedded font (sfnt) at offset 0x1AFED 16348 bytes
font_03_sfnt_off0001c5b8.bin
d18b6e9ba4fa51ee191b33d8841b0a54825a22d54cdb51fe4eb4a4d66d23e057
pdf-font-stream PDF embedded font (sfnt) at offset 0x1C5B8 6652 bytes