Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e1507de31da2742…

MALICIOUS

PDF

51.6 KB Created: 2020-08-24 03:57:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff49623ff1404d8be116466f073b1adb SHA-1: 4300a0fccecf3de09d48bf977d5db1e395c14113 SHA-256: 2e1507de31da27423ce8f86323e011ad0b837036cd8aabc229ab5b7f1d24280d
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though corrupted, contains the URL 'https://ttraff.ru/pify?keyword=budapest+club+guide', which is flagged as malicious. Additionally, a large number of links to Shopify-hosted PDFs were found, suggesting a link farm or SEO manipulation tactic to obscure the malicious redirector.

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.ru/pify?keyword=budapest+club+guide
    • http://zesud.placesbeyondwords.com/uploads/1/3/1/6/131637814/rimixikireko_zidekuwutobofo_zilofidisanof_jupatutubijufok.pdf
    • http://files.bouldermetalsmiths.com/uploads/1/3/0/7/130775619/mupatobimebafav_sidip_kagufusenowino_xemida.pdf
    • http://files.lalomur.com/uploads/1/3/0/7/130776674/wigavetofagatojafoxu.pdf
    • http://files.longshotbooks.com/uploads/1/3/1/3/131398401/4946011.pdf
    • http://rutiru.drtmobilevetcare.com/uploads/1/3/0/9/130969953/vesiwajefif.pdf
    • https://cdn.shopify.com/s/files/1/0430/0154/4863/files/69453494538.pdf
    • https://cdn.shopify.com/s/files/1/0428/3917/9420/files/zamoditubepav.pdf
    • https://cdn.shopify.com/s/files/1/0439/4529/6027/files/jspdf_autotable_examples_react.pdf
    • https://cdn.shopify.com/s/files/1/0433/7690/2309/files/cronograma_de_actividades_de_un_proyecto_informatico.pdf
    • https://cdn.shopify.com/s/files/1/0434/2503/8498/files/13286489158.pdf
    • https://cdn.shopify.com/s/files/1/0433/9099/2549/files/26164704521.pdf
    • https://cdn.shopify.com/s/files/1/0433/6100/9814/files/upmsp_2013_marksheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/6819/4978/files/87827744899.pdf
    • https://cdn.shopify.com/s/files/1/0433/2145/8853/files/voltage_transformer_manufacturers_south_africa.pdf
    • https://cdn.shopify.com/s/files/1/0440/1361/7302/files/business_plan_on_bakery.pdf
    • https://cdn.shopify.com/s/files/1/0437/7985/0398/files/maluxufor.pdf
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/32192892415.pdf
    • https://cdn.shopify.com/s/files/1/0427/8714/3839/files/blank_attendance_sheet.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008c23.bin
69d822a27574ac15bdedd036409475a8feede1ec6993f88d66c4ab973cd73ab5
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C23 5336 bytes
font_01_sfnt_off00009e4d.bin
b15235417eb9f5f9743f11816dd3bb43523df12a88fe232d3b853b5323236500
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E4D 10336 bytes