Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0669a37405e0fc2…

MALICIOUS

PDF

39.4 KB Created: 2020-08-16 23:23:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a7e65ea3e9bed4ce2119abeb51c7113 SHA-1: f9961a3588be89b0367bfe4242b972b1d4d81cd1 SHA-256: c0669a37405e0fc224007a054531aabd77efe2c492a05dd3c7a2b6b6283fc870
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL is https://ttraff.com/pify?keyword=aluminum+trailer+siding+sheets. The document body, though heavily obfuscated, contains references to this URL and other PDF files hosted on Shopify, suggesting a content-luring or SEO-based distribution tactic. No scripts were extracted, limiting the analysis to the PDF's redirection capabilities.

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/pify?keyword=aluminum+trailer+siding+sheets
    • http://files.adventurefictionforever.com/uploads/1/3/2/6/132681891/6897209.pdf
    • http://files.thejojodrops.com/uploads/1/3/1/3/131381241/2b2612af3ec0.pdf
    • http://zemufivek.pinkandgreenstyle.com/uploads/1/3/1/3/131380600/wupufiponu.pdf
    • http://files.meridianbodycare.com/uploads/1/3/1/8/131857193/6976761.pdf
    • http://fudejax.lauraloescher.com/uploads/1/3/1/6/131636655/wulevatebogib.pdf
    • https://cdn.shopify.com/s/files/1/0427/7128/4135/files/dinisewaxakade.pdf
    • https://cdn.shopify.com/s/files/1/0438/3929/1554/files/godowe.pdf
    • https://cdn.shopify.com/s/files/1/0431/6823/5675/files/adjectives_to_describe_a_person_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0427/7701/8524/files/xurufarofuvugasa.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8056/files/95585622933.pdf
    • https://cdn.shopify.com/s/files/1/0430/7959/8229/files/2020_kenya_census_job_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0429/3964/6108/files/99771239579.pdf
    • https://cdn.shopify.com/s/files/1/0430/8605/3527/files/32231331403.pdf
    • https://cdn.shopify.com/s/files/1/0437/3689/1544/files/jokutudewijugiruxujepevu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8656/0936/files/garivij.pdf
    • https://cdn.shopify.com/s/files/1/0432/5359/6310/files/telecharger_je_me_debrouille_en_anglais_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0430/5528/4373/files/5291453959.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_off00005d17.bin
b9c17af62b0de16f8803483dbba5a98abba8ded3764867d4bf046f41c0e1255c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D17 5228 bytes
font_01_sfnt_off00006e9d.bin
41a8411e2fe4a6cb7b62d3aca36ba01cf1477803c5b99e847a25556d23c7e15c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E9D 9996 bytes