Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0a4e7effb0ac968…

MALICIOUS

PDF

47.3 KB Created: 2020-08-20 23:27:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ab44874d89c5b5ebd23b4598fed8ee73 SHA-1: 38cdfed4fee63c45fd8a8ba1ea251548d7178bce SHA-256: f0a4e7effb0ac96833c25117fdc17bc88c150c4ce43c88ae907c6a6e4fdb1921
150 Risk Score

Malware Insights

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

The PDF was flagged for containing a malicious redirector link and a link farm. The primary malicious URL, https://ttraff.ru/pify?keyword=excel+vba+activesheet.+shapes%2528+application.+caller%2529.+name, suggests a lure related to Excel VBA, potentially leading to a phishing or malware download site. The presence of numerous Shopify links, while many are benign, contributes to the overall deceptive nature of the document.

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.ru/pify?keyword=excel+vba+activesheet.+shapes%2528+application.+caller%2529.+name
    • http://files.sunderlandpottery.com/uploads/1/3/0/9/130969402/pafokazok-suxixutifi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3264/0679/files/63301894594.pdf
    • https://cdn.shopify.com/s/files/1/0437/9089/3213/files/blks_aziza_barnes.pdf
    • https://cdn.shopify.com/s/files/1/0432/2423/6199/files/advanced_workout_routine_for_mass.pdf
    • https://cdn.shopify.com/s/files/1/0430/3768/7962/files/zugeganataposo.pdf
    • https://cdn.shopify.com/s/files/1/0435/2491/5359/files/the_peyote_dance_artaud.pdf
    • https://cdn.shopify.com/s/files/1/0440/2423/4149/files/application_of_derivatives_class_12_notes.pdf
    • https://cdn.shopify.com/s/files/1/0433/4285/6344/files/tusenetusigesopi.pdf
    • https://cdn.shopify.com/s/files/1/0436/2502/1603/files/firafirixixokazewogizapax.pdf
    • https://cdn.shopify.com/s/files/1/0436/6978/2693/files/jimixokojegewesumak.pdf
    • https://cdn.shopify.com/s/files/1/0433/0727/0312/files/ca_form_568_instructions.pdf
    • https://cdn.shopify.com/s/files/1/0433/1775/6057/files/69928947185.pdf
    • https://cdn.shopify.com/s/files/1/0432/8731/4585/files/mapupinatezotiputivitu.pdf
    • http://www.mvps.org/dmcritchie/excel/shapes.htm
    • 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_off00007006.bin
f1a266330db8a594f4d3ee431195decaa53df0faf07f9e43f33adfcdfe0c85ae
pdf-font-stream PDF embedded font (sfnt) at offset 0x7006 5584 bytes
font_01_sfnt_off000082e5.bin
0382641550d9903ad50ad1b36ef96fa571ac6fab1d4bb23f5c84cb96aca96d6b
pdf-font-stream PDF embedded font (sfnt) at offset 0x82E5 14392 bytes