Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dabcb3d3ec0c269…

MALICIOUS

PDF

48.0 KB Created: 2020-04-25 15:48:33 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7ae92f7602e2008b15f6345cc2700c50 SHA-1: df9ab55ce2fef34991fe879c078cdbba3681ccf3 SHA-256: 1dabcb3d3ec0c2696cc66197513354b3ef5146a0b130b78c56fa9c1ccd54f5aa
62 Risk Score

Malware Insights

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

The PDF document contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though partially corrupted, suggests a lure related to 'density mass and volume worksheet answers'. The primary intent appears to be directing users to these external sites, likely for phishing or malware distribution, as indicated by the numerous unknown-reputation URLs.

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://destinationkampfyre.com/uploads/1/3/0/3/130379522/130379522.html#density+mass+and+volume+worksheet+answers
    • http://snowysaint.com/uploads/1/3/0/4/130483879/a38c3da4204178.pdf
    • http://countyturfpro.com/uploads/1/3/0/2/130289509/sibagorola.pdf
    • http://morguinn.com/uploads/1/3/0/8/130874042/jerolafuku_jefinifag.pdf
    • http://resolveoh.com/uploads/1/3/0/9/130969405/1047718.pdf
    • http://ywcakankakee.com/uploads/1/3/1/4/131453805/825653.pdf
    • http://fieldsbeadsonline.com/uploads/1/3/0/4/130477310/rajif.pdf
    • http://rhparkerccs.com/uploads/1/3/0/7/130739142/pisomipupifan.pdf
    • http://adragonflysbnb.ca/uploads/1/3/0/3/130323962/526263.pdf
    • http://rrhsartclub.com/uploads/1/3/0/2/130270932/d427e01d1bd7e.pdf
    • http://rcmobilecarwash.com/uploads/1/3/0/9/130969673/ccec1f81f7c7.pdf
    • http://lccacademy.net/uploads/1/3/1/4/131437880/696d5.pdf
    • http://visualtrad.com/uploads/1/3/1/4/131483281/dunako.pdf
    • http://deanphillips-author.com/uploads/1/3/0/3/130379386/4433967.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_off00009327.bin
e1a4cdcb66d61836496943d53b083935efcf6dc7403d6ac8b8fed65d696873d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9327 8456 bytes

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