Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6cbdb6ae13dad59…

MALICIOUS

PDF

53.2 KB Created: 2020-04-08 19:59:47 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a4ca9251370fc869d1f1a30315b81a22 SHA-1: 19a9ded4c6cfa42f79399fbc933a84f076476254 SHA-256: a6cbdb6ae13dad5980e327a77f8624f71169a085499adffd3c6ce9d4b27eab21
92 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains a URL that is also present in the list of extracted URLs. The primary function appears to be directing users to a network of websites, likely for malicious purposes such as phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://jvcleaning.net/uploads/1/3/1/4/131407567/131407567.html#bounce+pro+14+trampoline+reviews
    • http://xn--12c5bcia3j5bvb8i.com/uploads/1/3/1/3/131380482/3778986.pdf
    • http://brentshirleyband.com/uploads/1/3/1/3/131383497/gixisiwudikatek-zimadilabe.pdf
    • http://cbbcveedersburge.org/uploads/1/3/1/4/131452938/5036975.pdf
    • http://aljbrand.com/uploads/1/3/0/5/130590298/9336492.pdf
    • http://martini-girls.com/uploads/1/3/0/5/130543874/vorinupej.pdf
    • http://aaadoption.org/uploads/1/3/0/6/130621654/domaze.pdf
    • http://analyticsplayground.org/uploads/1/3/0/6/130639936/lavaxuweb-jeniwu.pdf
    • http://cassieorduno.com/uploads/1/3/0/6/130639837/9780116.pdf
    • http://stylesbyknight.com/uploads/1/3/1/3/131379202/f8ed0c.pdf
    • http://creamcoldbrew.com/uploads/1/3/0/8/130873918/5140003.pdf
    • http://gingabreadhouse.com/uploads/1/3/0/7/130775653/kilijiwewawupi-vulokiwar.pdf
    • http://linked-together.com/uploads/1/3/1/1/131163579/daxugi-panuj-xomopi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009e52.bin
ab417bb170a6302045a8e014a2a8dbe655a0675830b0a3a05fc2202f20a8816a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E52 8264 bytes
font_01_sfnt_off0000be28.bin
63f5e27ee3d24cc00d413e59c301cc73ab377383609796993547673f2bea898c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE28 2600 bytes

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