Malicious PDF — malware analysis report

Static analysis result for SHA-256 36576e24e25479e1…

MALICIOUS

PDF

40.2 KB Created: 2020-08-18 19:09:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d808f93c13322d0819cc5ae85d8a52c8 SHA-1: 1234f6dcc604cc1fc8213848c90e9a3df819de30 SHA-256: 36576e24e25479e1a495f545c8ab65badec8a2da37643bb5c7ce6f7572604269
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a lure related to a 'Bteup date sheet 2019 back paper' and embeds multiple links. One critical heuristic indicates a malicious redirector link to 'ttraff.com', which is likely used to funnel users to further malicious content. Another heuristic identifies a PDF link farm hosted on Shopify, suggesting an attempt to obscure the final destination or distribute malicious files. The presence of a visual download button further supports a social engineering attack.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bteup+date+sheet+2019+back+paper
    • http://files.revolutionyouth.ca/uploads/1/3/0/8/130813409/316222e.pdf
    • https://cdn.shopify.com/s/files/1/0436/6503/1321/files/one_for_all_remote_codes_urc_3021.pdf
    • https://cdn.shopify.com/s/files/1/0427/7354/5116/files/sifovedibo.pdf
    • https://cdn.shopify.com/s/files/1/0433/7831/1318/files/essentials_of_neuropsychiatry_and_behavioral_neurosciences.pdf
    • https://cdn.shopify.com/s/files/1/0429/3804/0487/files/python_basic_coding.pdf
    • https://cdn.shopify.com/s/files/1/0434/1409/3986/files/something_anything_someone_anyone_somewhere_anywhere_exercise.pdf
    • https://cdn.shopify.com/s/files/1/0430/7746/8327/files/58627911668.pdf
    • https://cdn.shopify.com/s/files/1/0429/8807/7209/files/vorogosefeg.pdf
    • https://cdn.shopify.com/s/files/1/0434/9270/4408/files/14716721100.pdf
    • https://cdn.shopify.com/s/files/1/0435/4254/4533/files/93821061622.pdf
    • https://cdn.shopify.com/s/files/1/0439/8986/0510/files/adjective_noun_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/97098861098.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_off00005d2d.bin
796d57fce883fb3117e5f1328f95727a2da93eebce4382695301a246b159cfd4
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2D 5864 bytes
font_01_sfnt_off00007112.bin
39e1e1883067730629ba1d16efa29ead0452fd8540bef3a6f25ac606204ebc0c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7112 10100 bytes