Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a140f8f1cb2a3f9…

MALICIOUS

PDF

42.8 KB Created: 2020-08-29 08:37:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b57f505cdb25ed0edf9b35a9bdc0b8f SHA-1: 0dca321d5397eae5920c763bccc98ef043a4d233 SHA-256: 2a140f8f1cb2a3f9293aa7b8d333921916861763d1b16d1abdac92cc758bc66d
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of these links, https://ttraff.ru/wix?keyword=conductivit%25C3%25A9+d+une+solution, is identified as a malicious redirector. This suggests the document is designed to lure users into clicking malicious links, likely for phishing or malware distribution.

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/wix?keyword=conductivit%25C3%25A9+d+une+solution
    • https://cdn.shopify.com/s/files/1/0433/6504/0286/files/autocad_drawing_2d_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0431/3179/7668/files/zotuvalilitefetesubefi.pdf
    • https://cdn.shopify.com/s/files/1/0435/6653/0719/files/hydraulic_sheet_bending_machine_mini_project.pdf
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/nijosuxazisajatupufureson.pdf
    • https://cdn.shopify.com/s/files/1/0433/9705/4631/files/john_deere_955.pdf
    • https://cdn.shopify.com/s/files/1/0434/2674/2421/files/gusirodejevasikepebax.pdf
    • https://cdn.shopify.com/s/files/1/0464/5607/8504/files/green_smoothies_recipes_for_weight_loss.pdf
    • https://cdn.shopify.com/s/files/1/0432/3095/3630/files/politically_incorrect_guide_to_civil_war.pdf
    • https://cdn.shopify.com/s/files/1/0428/2623/6071/files/28047990731.pdf
    • https://cdn.shopify.com/s/files/1/0429/6287/8618/files/memorex_cd_label_template.pdf
    • https://cdn.shopify.com/s/files/1/0432/9940/5977/files/lelubuwen.pdf
    • https://cdn.shopify.com/s/files/1/0435/2563/6250/files/acromioclavicular_joint_injury.pdf
    • https://cdn.shopify.com/s/files/1/0433/6936/5654/files/pufegowameloluzekulizebiz.pdf
    • https://cdn.shopify.com/s/files/1/0432/6604/8165/files/wirutexefurozidagevepi.pdf
    • https://cdn.shopify.com/s/files/1/0437/4636/1505/files/microsoft_azure_iaas_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0432/8072/8224/files/bitsat_previous_year_question_paper_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/english_alphabet_with_words.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_off00006762.bin
54c346f290415ee685245bb951bc1ceed2a56f348ea34e3d1e8beba7bb47412d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6762 4732 bytes
font_01_sfnt_off0000774f.bin
85c9a9004a93e5fa9c335658b941b5c670f5f8a826ef11679aeb8c0e473ca85c
pdf-font-stream PDF embedded font (sfnt) at offset 0x774F 11624 bytes