Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b2d150b26bb006d…

MALICIOUS

PDF

46.7 KB Created: 2020-08-05 22:57:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c81ec3442070ee86b00fbac137420d8 SHA-1: be62e1dd9a07fa9632c83a1a8b2e4e45940deeb2 SHA-256: 3b2d150b26bb006d3fa63159d300e1ee39cab84bf0cd04c99167772e835c3abc
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=beginner+s+guide+to+digital+painting+in+photoshop+pdf+download'. This indicates a social engineering lure, likely attempting to trick the user into downloading further malware or visiting a phishing page. The document also contains a large number of external links, many hosted on Shopify, which is flagged as a link farm. No scripts were extracted, but the presence of the redirector and link farm strongly suggests a malicious intent to drive traffic to harmful sites.

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=beginner+s+guide+to+digital+painting+in+photoshop+pdf+download
    • http://files.bad-for-your-health.com/uploads/1/3/0/9/130969469/mupudirexuferetux.pdf
    • http://files.nwdoulaconference.com/uploads/1/3/1/4/131406668/5bf37295f.pdf
    • http://files.reuniontheatregroup.org/uploads/1/3/1/4/131453024/7571963.pdf
    • http://files.spareroompdx.com/uploads/1/3/2/6/132695405/043ed160537.pdf
    • http://files.ebbandflowadventures.org/uploads/1/3/1/4/131453615/gewajaremekafo_zitavu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8531/5739/files/71034596440.pdf
    • https://cdn.shopify.com/s/files/1/0431/2442/4853/files/mmpi_test_questions.pdf
    • https://cdn.shopify.com/s/files/1/0430/3686/8762/files/mass_effect_codex.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23929268289.pdf
    • https://cdn.shopify.com/s/files/1/0435/5771/6119/files/sofudeg.pdf
    • https://cdn.shopify.com/s/files/1/0438/4122/4861/files/wepowupakeka.pdf
    • https://cdn.shopify.com/s/files/1/0430/6596/6741/files/wefagijesugajufuwof.pdf
    • https://cdn.shopify.com/s/files/1/0435/4254/4533/files/bikamiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/3545/0774/files/national_cars_sales_kerrville.pdf
    • https://cdn.shopify.com/s/files/1/0436/2685/6601/files/calamities_renee_gladman.pdf
    • https://cdn.shopify.com/s/files/1/0432/3724/5086/files/81242430093.pdf
    • https://cdn.shopify.com/s/files/1/0434/3290/2823/files/husqvarna_223l_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/3117/5063/files/nisuxepigoz.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_off0000784f.bin
2b40bc1994d3d2d729ec41d57116d085780802a01f82547fc89fcb57761d8c74
pdf-font-stream PDF embedded font (sfnt) at offset 0x784F 5444 bytes
font_01_sfnt_off00008ae1.bin
fb2fd7c9263697e9a63bd4642dc7280ac76eb6b7684a9bcd1a2881b195c38373
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE1 9956 bytes