Malicious PDF — malware analysis report

Static analysis result for SHA-256 39c5f3022e1e85c9…

MALICIOUS

PDF

33.4 KB Created: 2020-04-04 14:03:37 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-04
MD5: 5a571da19e5aefbdd6b8808593c1d6ef SHA-1: 4ec83a3c4cd800feb8335a826d7599151e7e2b62 SHA-256: 39c5f3022e1e85c923a66f7d59ad58738589c08b0279268f798caa8b86a96591
96 Risk Score

Malware Insights

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

The PDF document contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains a URL that appears to be the primary lure. The presence of numerous links suggests an attempt to manipulate search engine results or to distribute malicious content across multiple domains. No scripts were extracted, limiting the analysis of direct payload execution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://jameconsulting.net/uploads/1/3/0/5/130540583/130540583.html#boyz+in+the+hood+dynamite+hack+chords PDF link annotation
    • http://awarenesshealth.org/uploads/1/3/0/6/130604590/618f48bd3c73.pdfIn PDF document text
    • http://thehappyhoundpetsitting.com/uploads/1/3/0/5/130588251/14e81c410.pdfIn PDF document text
    • http://theroadtowin.com/uploads/1/3/0/6/130620642/fapanutuse_duxatonenilo.pdfIn PDF document text
    • http://fearlessrunway.com/uploads/1/3/0/2/130289375/lawenosesobalosegek.pdfIn PDF document text
    • http://missdaisybodytreats.com/uploads/1/3/1/4/131406502/bekodilusaferaj.pdfIn PDF document text
    • http://couplestherapynewyork.org/uploads/1/3/0/9/130969235/ca9449c61d.pdfIn PDF document text
    • http://samthinks.com/uploads/1/3/0/6/130639553/d379514413fcc.pdfIn PDF document text
    • http://returningtocompassion.com/uploads/1/3/0/8/130874283/2ad12419113e.pdfIn PDF document text
    • http://fullcyclefactory.com/uploads/1/3/0/6/130639770/1157402.pdfIn PDF document text
    • http://area337motorsports.com/uploads/1/3/0/2/130287929/2113588.pdfIn PDF document text
    • http://ibccolumbia.org/uploads/1/3/0/9/130969172/1c2e751fe8df.pdfIn PDF document text
    • http://democracy.nyc/uploads/1/3/1/4/131454984/boniwonulisosuriwigu.pdfIn PDF document text
    • http://vanperm.com/uploads/1/3/0/6/130639230/4e9f9.pdfIn PDF document text
    • http://bellydancebelles.com/uploads/1/3/0/8/130873796/557b483.pdfIn PDF document text
    • http://iawolusi.people.ua.edu/uploads/1/3/1/4/131438007/turakotomid.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
🗂 Part of campaign: bellydancebelles.com 6 samples

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B77 7232 bytes
SHA-256: 3aecea2a621f1dd23ea6b5151addb570f1ed5c151a01416dedacec28a93e3bfa