Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca657472ef55025b…

MALICIOUS

PDF

32.7 KB Created: 2020-04-20 06:56:54 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 43318d42cbba122d2ada72d9d1d00036 SHA-1: 8d6ecfa2b38877adfffb1dd8093fd83e9535ee13 SHA-256: ca657472ef55025b7fe8d8640cae98f183231e3a7e9128564ba15be0dab55c6c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a large number of external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though partially corrupted, suggests a lure related to 'cladogram phylogeny practice answers'. The primary heuristic identified a 'PDF_SEO_LINK_FARM' with multiple links hosted on amethystvirgo.com, indicating a likely attempt to drive traffic to potentially malicious content. No scripts were extracted from this sample.

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://finitoclothing.com/uploads/1/3/0/4/130436139/130436139.html#cladogram+phylogeny+practice+answers
    • http://amethystvirgo.com/uploads/1/3/0/6/130620424/pekez.pdf
    • http://kimberlymalito.com/uploads/1/3/0/3/130313284/747e61cabd60.pdf
    • http://satisfyingthingsmm.com/uploads/1/3/0/5/130550797/489830.pdf
    • http://neurokine.net/uploads/1/3/0/2/130272928/7543854.pdf
    • http://ifloveconservation.com/uploads/1/3/1/0/131070054/zarofabavosikogix.pdf
    • http://balthazarcafebar.com/uploads/1/3/0/9/130969046/8197d9c.pdf
    • http://apreciousgiftoflove.com/uploads/1/3/0/4/130477492/wimededuwa-mikajamoru-zipekoferimope-demazoni.pdf
    • http://poapoacosmetics.com/uploads/1/3/1/3/131383893/gadetuzirosowide.pdf
    • http://consumerfirstaid.com/uploads/1/3/1/6/131606402/e88e5e.pdf
    • http://composerhougland.com/uploads/1/3/0/6/130621280/tisuzo.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005862.bin
f1431a1d6bdb326cbc9827fa60753a7f726d175ab46bd4870f06e0784ceb8035		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5862 7824 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.