Malicious PDF — malware analysis report

Static analysis result for SHA-256 98a1eec4e15215a4…

MALICIOUS

PDF

40.8 KB Created: 2020-04-18 06:26:57 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 15a17ec7d61ce266c482d9efd03f6987 SHA-1: 1c61f07e5ba24ea8f72f25a3331d1c212acb5a75 SHA-256: 98a1eec4e15215a4234600885fd34edd661add7aa05740b136dad5a1536433ee
94 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier with high confidence. It contains a large number of external links, many of which point to domains that appear to be part of a link farm designed for SEO manipulation. These links likely serve as a distribution mechanism for further malicious content or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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://edgelandscapeandmaintenance.com/uploads/1/3/0/2/130272360/130272360.html#timestamp+format+in+oracle+11g
    • http://universalpharmaceuticalagency.com/uploads/1/3/0/5/130540583/moduvo.pdf
    • http://partyforthepurpose.org/uploads/1/3/0/7/130775015/lupefusiselojer.pdf
    • http://beatdowncards.com/uploads/1/3/0/8/130874354/8474695.pdf
    • http://jeffgraymortgages.com/uploads/1/3/0/6/130621503/9bb1032a1.pdf
    • http://mostlytech.com/uploads/1/3/0/2/130272319/1717178.pdf
    • http://ormandysoftware.com/uploads/1/3/1/0/131070841/wotorenajupimefukowi.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_off0000780f.bin
9393024406b72d829624e987ae1b0337a57d2e2d5d0581c1239a4af5a718ef83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x780F 8236 bytes

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