Malicious PDF — malware analysis report

Static analysis result for SHA-256 138eeae189e6e97d…

MALICIOUS

PDF

47.9 KB Created: 2020-04-03 12:46:11 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: ada9f1c7aaa33c2b0e9e4075c86592a6 SHA-1: 3bdc0e83937da2d5015254f13d7e0660deda5ad3 SHA-256: 138eeae189e6e97d8fea7bcd0deff246ec60a377b580b5a3a609415601a05498
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or redirection scheme. The embedded document body text, though partially corrupted, includes a URL related to 'focus group jobs nyc', which is likely a lure. The primary function appears to be directing users to a network of potentially malicious websites.

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://cityonloc.com/uploads/1/3/1/3/131379274/131379274.html#focus+group+jobs+nyc
    • http://forum.kits4kids.org/uploads/1/3/0/6/130621906/96897eb971.pdf
    • http://thecreatrixart.com/uploads/1/3/0/3/130313237/776d9611.pdf
    • http://fearhavenhaunts.com/uploads/1/3/1/3/131383921/bajejalokib-pupubipunobux-zujapujaz-sudelezo.pdf
    • http://himperialconstruction.com/uploads/1/3/0/6/130604710/721412.pdf
    • http://picketfencecatering.com/uploads/1/3/1/3/131380495/kelaganaxe_wodor.pdf
    • http://stmichaelmarauders.com/uploads/1/3/0/3/130312976/pifajigase.pdf
    • http://sportprediction.site/uploads/1/3/0/2/130288394/gimoxig.pdf
    • http://theelitecloser.com/uploads/1/3/0/2/130274098/sefopixakifafo.pdf
    • http://downriverkaraokeanddj.com/uploads/1/3/1/1/131163980/c88c8c231c66ff3.pdf
    • http://barambah-beekeepers.org/uploads/1/3/0/9/130969358/davasa_fasas_getujowekafut_pibagukata.pdf
    • http://macrowsoft.com/uploads/1/3/1/3/131380467/kugobojagijiwumu.pdf
    • http://mrsprayfoamplus.com/uploads/1/3/0/3/130313190/2457ae85a3add.pdf
    • http://tomaroche.com/uploads/1/3/1/0/131070144/zutikobu_givamovoji_susixojajoba_dekadupokiw.pdf
    • http://solanii.com/uploads/1/3/0/4/130483445/01933a8.pdf
    • http://kkmedicalsharingservices.net/uploads/1/3/1/0/131070933/9899683.pdf
    • http://aldrichpartners.com/uploads/1/3/0/2/130291350/3e3d6a125.pdf
    • http://internationalcheeseadventures.com/uploads/1/3/1/4/131407227/puxamipigimazaz.pdf
    • http://mindventur.com/uploads/1/3/0/6/130620402/4202061.pdf
    • http://lecoudray.net/uploads/1/3/0/4/130483487/foveten-virixa.pdf
    • http://quest.hiphop/uploads/1/3/1/1/131163691/3616411.pdf
    • http://sandyburlesoneportfoliowfu.com/uploads/1/3/1/3/131383427/zubimexa-geferiwositam.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_off00009048.bin
9cedf47d89ee95054d0f7384d3a56d7a9c4543dc28a27f62ffcee18cd6a6d642
pdf-font-stream PDF embedded font (sfnt) at offset 0x9048 8400 bytes