Malicious PDF — malware analysis report

Static analysis result for SHA-256 696fa62190ec5102…

MALICIOUS

PDF

46.8 KB Created: 2020-06-11 21:26:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50039edc9d094b3c8f4d156e49370701 SHA-1: f2606b8c9ae84f49233a8363c3de0611d5a8d387 SHA-256: 696fa62190ec5102149ff6daacb2b141cb98f0b61307237e689e6c54f79c6aca
116 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, identified by the 'PDF_SEO_LINK_FARM' heuristic, suggesting a link farm or SEO manipulation tactic. The 'ML_NYX_PDF_MALICIOUS' heuristic also strongly indicates malicious intent. While the document body mentions 'Research poster guidelines' and 'QR=x0F', the primary malicious activity appears to be the mass distribution of external links, some of which are hosted on suspicious domains.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://ryanlordelitefitness.com/uploads/1/3/1/0/131069992/131069992.html#research+poster+guidelines
    • http://jim-quinn.com/uploads/1/3/0/8/130814562/supur-jakulenowukozo-jifewedobox-kadizax.pdf
    • http://theguamwomensclub.com/uploads/1/3/0/5/130588407/4322276.pdf
    • http://penguinbusinesscards.com/uploads/1/3/1/0/131070888/rumumapawifajewa.pdf
    • http://thehappylifewellnessco.com/uploads/1/3/0/4/130489039/waworakelabamitu.pdf
    • http://kaizenventurepartners.com/uploads/1/3/0/6/130621941/5439449.pdf
    • http://sydney.awrc.org.au/uploads/1/3/0/6/130604355/7b593c1.pdf
    • http://cpcalendars.corbidi.org/uploads/1/3/0/8/130814516/2c9f40aeb297b.pdf
    • http://waxymelts.com/uploads/1/3/0/2/130289542/wopolupelefovu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://xipibutepu.files.wordpress.com/2020/06/vamukoketogutijubidepoz.pdf
    • https://rotodiduluf.files.wordpress.com/2020/06/xunuruzutul.pdf
    • https://xowagibiwu.files.wordpress.com/2020/06/mowozuxiwaxixuwu.pdf
    • https://tosukovexe.files.wordpress.com/2020/06/mutumeliziwexura.pdf
    • https://jukawuf.files.wordpress.com/2020/06/pizipija.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000890a.bin
9a227c0bc7562e9ec01fa6c13250d1e87f52748329d4fdccd4c97634954c9631		 pdf-font-stream PDF embedded font (sfnt) at offset 0x890A 11444 bytes

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