Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b09e91243e8b9dc…

MALICIOUS

PDF

42.1 KB Created: 2020-03-24 23:48:30 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 2c4a3de09e539092225c4374e65ac83b SHA-1: 0007b547795a66447f8ccaa216dc538765eb1dac SHA-256: 1b09e91243e8b9dc7fc0f605f7aa3c56a7801ff43daf903484e47240961bddce
96 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The primary link points to 'northernrailleaders.com', and the document body contains garbled text alongside a reference to 'Lego harry potter 71043 hogwarts 2018 castle', suggesting a lure. The ML classifier strongly flagged this PDF as malicious. The numerous external links indicate a likely attempt at SEO spam or directing users to malicious sites.

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://northernrailleaders.com/uploads/1/3/0/4/130483355/130483355.html#lego+harry+potter+71043+hogwarts+2018+castle
    • http://www.genevasoapcompany.com/uploads/1/3/0/6/130603982/zofur.pdf
    • http://alonbibring.com/uploads/1/3/0/4/130476751/08a1b.pdf
    • http://onthegroundresearch.com/uploads/1/3/0/6/130604355/puzutufijoziz.pdf
    • http://ictforpeace.net/uploads/1/3/0/5/130550664/5d6227fb284.pdf
    • http://n122ld.com/uploads/1/3/0/8/130813991/magibugunusowe_xeror.pdf
    • http://hostmaster.darianicolodi.net/uploads/1/3/0/6/130621643/xajukezafe_vutusu.pdf
    • http://voterichardnewton.com/uploads/1/3/0/7/130739830/466016.pdf
    • http://self-healing-effect.com/uploads/1/3/0/4/130435551/zavan.pdf
    • http://fundraising-career.com/uploads/1/3/0/7/130775992/3362170.pdf
    • http://alitebiomedical.com/uploads/1/3/0/8/130874672/2565518.pdf
    • http://www.stevemitchellweddingdj.co.uk/uploads/1/3/0/4/130436339/9a941.pdf
    • http://www.oddtimestudios.com/uploads/1/3/0/2/130272432/0efb04111767b06.pdf
    • http://petrocartaenergy.com/uploads/1/3/0/3/130313434/e846c3386a90.pdf
    • http://tampaluxurywedding.com/uploads/1/3/0/6/130604675/a9393c1bbadb9.pdf
    • http://kimymultiservicios.com/uploads/1/3/0/8/130814907/8772413.pdf
    • http://alexandercapitalequity.com/uploads/1/3/0/5/130539357/1d2a55378aee6.pdf
    • http://tuffnlitehockey.com/uploads/1/3/0/4/130490643/7315768.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_off00006e2b.bin
15506818a9b81c8669bc07457e076524aa05366a3696649c6b25751652ab80d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E2B 8508 bytes
font_01_sfnt_off00008f1c.bin
e2f1373bf3d70a40ff4276a486f0a1d2d32154e4f45ad1243a44c3d3b7d91cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F1C 2652 bytes

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