Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0117daefc2590eb…

MALICIOUS

PDF

45.8 KB Created: 2020-08-23 14:07:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 234c29dd624906b0a4f855bfcf39256e SHA-1: 88b1557209a438cd93500927ca163ecf2c4bfcfd SHA-256: f0117daefc2590eba0bc7964080e4f95229143af482a0553656f41eeca5f6a40
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. This indicates a social engineering attempt to drive traffic to malicious sites. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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 https://ttraff.ru/pify?keyword=termination+of+services+letter+to+vendor+template
    • http://vinag.chaddertontogether.co.uk/uploads/1/3/2/7/132712615/dunujuvarekakuda.pdf
    • http://pelane.mychoice411.com/uploads/1/3/1/8/131872225/ee53cefa93547.pdf
    • http://files.racerengineering.com/uploads/1/3/0/7/130775357/wogezozu.pdf
    • http://dilixipud.writeforyou.me/uploads/1/3/2/6/132696194/235434.pdf
    • http://madude.trinity-medford.org/uploads/1/3/0/7/130739674/sisitipunese-joragabirajo-zatebuvasijo-forof.pdf
    • https://cdn.shopify.com/s/files/1/0429/5848/7703/files/jordan_canonical_form_examples.pdf
    • https://cdn.shopify.com/s/files/1/0432/3606/5438/files/hands_on_automated_machine_learning.pdf
    • https://cdn.shopify.com/s/files/1/0433/0569/7440/files/transformar_em_dwg_autocad_2017.pdf
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/70043037447.pdf
    • https://cdn.shopify.com/s/files/1/0428/1512/7708/files/doxezegaleleletalibe.pdf
    • https://cdn.shopify.com/s/files/1/0435/5915/7921/files/59668764251.pdf
    • https://cdn.shopify.com/s/files/1/0434/0757/3149/files/putiwixot.pdf
    • https://cdn.shopify.com/s/files/1/0432/6057/5894/files/rolilo.pdf
    • https://cdn.shopify.com/s/files/1/0428/2541/6860/files/powerpoint_template_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0434/8238/2502/files/descargar_adobe_reader_uptodown.pdf
    • https://cdn.shopify.com/s/files/1/0431/4536/3610/files/82262218308.pdf
    • https://cdn.shopify.com/s/files/1/0440/0427/8422/files/refurezoku.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065eb.bin
780393963cb6a66e991d6b699cbe8ec1992a46fee01b1b28554d1d9e733acef2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65EB 5100 bytes
font_01_sfnt_off00007725.bin
eed6feb7685b6c1a04876f3e16b6840fac2fff216d746d1934128fff6aa7268b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7725 10528 bytes
font_02_sfnt_off00009b0e.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B0E 4324 bytes

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