Malicious PDF — malware analysis report

Static analysis result for SHA-256 92a2632938f3db74…

MALICIOUS

PDF

44.0 KB Created: 2020-04-11 21:44:31 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 1285e58ab77260362cb5d0fdf8f12779 SHA-1: 2829fc9225c5f1392415e19eb387ef7946ffd158 SHA-256: 92a2632938f3db74da5c9542ad11c1c07e4cf730a37f973c6a07f35045e25649
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body contains text related to 'Gta v cheats xbox one all guns', suggesting a lure to attract users to click on these links. The primary function appears to be a link farm designed to redirect users to potentially malicious content hosted on domains like 'tactilligence.com' and 'noch-int.com'.

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://tactilligence.com/uploads/1/3/1/4/131482893/131482893.html#gta+v+cheats+xbox+one+all+guns
    • http://noch-int.com/uploads/1/3/0/5/130542991/vumajositutixap-podoki.pdf
    • http://tutorenglishonline.com/uploads/1/3/1/4/131437850/fazopizuxazela_vedeja_pebugobivagu_wosak.pdf
    • http://faircarbonpricing.org/uploads/1/3/0/6/130621201/6158263.pdf
    • http://tokenblackteacher.com/uploads/1/3/1/1/131164534/118929b6.pdf
    • http://acmepandasales.com/uploads/1/3/0/2/130289655/2862593.pdf
    • http://iamcollegiate.com/uploads/1/3/1/6/131637178/naruxetirobutopitov.pdf
    • http://drhamby.com/uploads/1/3/1/3/131380636/nadowurenixi_vuzabuludimituw_sikuxunugazokog_fofeb.pdf
    • http://palyes.org/uploads/1/3/0/5/130588588/zozobunojiw.pdf
    • http://intrepidlock.com/uploads/1/3/0/5/130588248/vurasenewumuda.pdf
    • http://sommerfestendingen.ch/uploads/1/3/0/7/130740187/dejodenemeban.pdf
    • http://liz-donnelly.co/uploads/1/3/0/5/130550684/ripozaban_rutaxerukave.pdf
    • http://wabisabiapparelco.com/uploads/1/3/1/3/131384656/xorodijufuv_tatasivofoxore.pdf
    • http://josephsiinoart.com/uploads/1/3/0/6/130639651/gokojarip-zetiwujel-xalivedi.pdf
    • http://josephsiinoart.com/uploads/1/3/0/6/130639651/gokojarip-zetiwuje
    • 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_off000084fc.bin
3dca60ebb9e62208c8dc9d9c058d9d76a66ab9cf083cfda4d3044db7ab76e665		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84FC 7992 bytes

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