Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a366fb98bf8bb2d…

MALICIOUS

PDF

40.2 KB Created: 2020-03-29 14:41:21 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 26609ba463c3422889daccb1037ff153 SHA-1: b5f780f251f41092971106c3dde6f364bc632f50 SHA-256: 2a366fb98bf8bb2df2d09b5ed03ab96fa2f02c327a02131b99462ee1e9548d88
96 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection scheme. The ML classifier also strongly indicated maliciousness. The document body contains garbled text and some URLs, but the primary malicious activity appears to be the mass distribution of external links, likely to distribute malware or engage in SEO spam.

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://neokundalini.org/uploads/1/3/0/6/130604595/130604595.html#igloo+kool+mate+36+not+cooling
    • http://experienceperigord.com/uploads/1/3/0/5/130540366/7736169.pdf
    • http://veteransmusicfest.com/uploads/1/3/0/7/130776099/9979102.pdf
    • http://onestepovertheedge.com/uploads/1/3/0/2/130272579/fakufa_livesabofifikip_jomipikos.pdf
    • http://poshgroom.com/uploads/1/3/1/3/131383548/1878514.pdf
    • http://twinatron.com/uploads/1/3/0/5/130589165/1102367.pdf
    • http://andrewfreer.com/uploads/1/3/0/5/130539810/kabefuwuz.pdf
    • http://nicolaspeer.com/uploads/1/3/0/7/130775756/libebino.pdf
    • http://gtbkent.net/uploads/1/3/0/5/130588482/rexugumoxemi_xomifud.pdf
    • http://kimberlycookimages.com/uploads/1/3/0/3/130323106/vuduwutigevegesi.pdf
    • http://urzedo.com/uploads/1/3/1/3/131383981/vopubozamus_mutek_rililijugul_luzib.pdf
    • http://gratistuition.com/uploads/1/3/0/7/130739132/woduramiruvo_xerev_jisonisefawaro.pdf
    • http://tigerstonegroup.com/uploads/1/3/0/6/130604671/c93be0d9f573.pdf
    • http://fairingprices.com/uploads/1/3/0/3/130323173/xibimejuv.pdf
    • http://farmmachinemower.com/uploads/1/3/1/3/131380438/xakomesoma-gefanav-miwitebozo-kowudupofere.pdf
    • http://hotmessexpress82.com/uploads/1/3/0/9/130969293/d70032.pdf
    • http://thewisdomseries.org/uploads/1/3/0/7/130739519/judagunowexukir.pdf
    • http://motorizedbicyleparts.com/uploads/1/3/0/5/130590664/nuliwuzal.pdf
    • http://mtpaintings.com/uploads/1/3/0/5/130539139/a13e5e543b1f8d1.pdf
    • http://penwoodcontractfurniture.com/uploads/1/3/0/7/130738994/668774.pdf
    • http://americanizada.com/uploads/1/3/0/5/130551457/7711286.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_off00007462.bin
e5e3b06b2a0cf7751c681cec3b88f722a7d09acb6431242d9d198f808e1e96d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7462 8016 bytes

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