Malicious PDF — malware analysis report

Static analysis result for SHA-256 39a6e7db9a598e68…

MALICIOUS

PDF

49.4 KB Created: 2020-08-14 05:01:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 037d938678bc81e0d30a2604ecaa1819 SHA-1: 6fdc12919f2f1426ebbf51e5bcb15b5063eb5e3d SHA-256: 39a6e7db9a598e6807f809220c9768167aefcdf18fdaa1598a5dcb420e91f490
150 Risk Score

Malware Insights

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

The PDF contains a high density of external links, many pointing to what appears to be a link farm designed for SEO manipulation. One prominent link directs to a known malicious redirector, ttraff.com, which in turn leads to a URL containing 'royale play catalogue 2016 pdf'. This suggests a phishing or malware distribution attempt disguised as a catalogue. No scripts were extracted, but the PDF structure and embedded links strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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.com/wb?keyword=royale%20play%20catalogue%202016%20pdf
    • http://rejik.kitchendesigncentersr.com/uploads/1/3/2/6/132682035/3398961.pdf
    • http://jatabati.varsitystitchshop.com/uploads/1/3/0/9/130969360/4529805.pdf
    • http://files.shopmutana.com/uploads/1/3/2/7/132740462/2726787.pdf
    • http://files.kevmol.com/uploads/1/3/0/8/130873758/efe6b036ac9.pdf
    • http://files.pyrfectlyhandmade.com/uploads/1/3/0/7/130775666/2301fef.pdf
    • https://cdn.shopify.com/s/files/1/0433/7047/9772/files/lanapivovoluxewimezofi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6776/7972/files/theories_of_oxidative_phosphorylation.pdf
    • https://cdn.shopify.com/s/files/1/0437/3577/7445/files/30475985994.pdf
    • https://cdn.shopify.com/s/files/1/0428/9236/1887/files/12221233920.pdf
    • https://cdn.shopify.com/s/files/1/0430/9699/8041/files/character_traits_graphic_organizer.pdf
    • https://cdn.shopify.com/s/files/1/0432/9039/4788/files/english_test_papers_for_grade_4.pdf
    • https://cdn.shopify.com/s/files/1/0431/1498/7682/files/sifin.pdf
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/49470487452.pdf
    • https://cdn.shopify.com/s/files/1/0429/2745/6419/files/83752528274.pdf
    • https://cdn.shopify.com/s/files/1/0433/9879/1329/files/konasig.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2305/files/jipefoweliwe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5080/3099/files/adsorption_process_in_wastewater_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0432/1817/4120/files/bouddhisme_pour_les_nuls.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_off00006348.bin
57a5f3a63c03840b16b0570463ca2dc385f7382e8d2e1ba79ed3c22597f809eb
pdf-font-stream PDF embedded font (sfnt) at offset 0x6348 5640 bytes
font_01_sfnt_off000076a4.bin
6aba2938fcd74eae7221be378e8f62447eb03713ddce94b9a789709418d3f90c
pdf-font-stream PDF embedded font (sfnt) at offset 0x76A4 13944 bytes
font_02_sfnt_off0000a262.bin
ff8c9b4b2523fe0ccc83ac85cccacc14cc29c5053bcbce974414449af777fe57
pdf-font-stream PDF embedded font (sfnt) at offset 0xA262 16336 bytes