Malicious PDF — malware analysis report

Static analysis result for SHA-256 7955befb297bfb71…

MALICIOUS

PDF

40.3 KB Created: 2020-08-02 21:20:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c8614ceb0c48acda65a97016f2f5bf1d SHA-1: 287ef776cba11ab732924aa0cd3f4b812c216a28 SHA-256: 7955befb297bfb7109199ee8a89fdaac6a9648ecc8a2c1fb384ba67c5ac3b915
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, many pointing to Shopify domains, but one critical link redirects to `ttraff.com`, a known malicious redirector. The document body, though garbled, contains text related to a 'Pioneer deh 3400 ub' and the URL, suggesting a lure to a product or scam. The presence of a callback phishing lure heuristic further supports a social engineering attack. The primary attack pattern involves redirecting users to malicious infrastructure via embedded links.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=pioneer+deh+3400+ub
    • http://files.onewomansperspective.com/uploads/1/3/1/4/131453076/kipax_togerez_xoripefa.pdf
    • http://files.shopgapeach.com/uploads/1/3/0/7/130739387/lutaxorapo_rufabuboxopasus_vefolozipobu.pdf
    • http://files.tockwithjuniors.com/uploads/1/3/1/1/131163613/2733291.pdf
    • https://cdn.shopify.com/s/files/1/0431/6590/9160/files/37533161395.pdf
    • https://cdn.shopify.com/s/files/1/0427/9736/7452/files/6442691589.pdf
    • https://cdn.shopify.com/s/files/1/0435/4070/9527/files/77665645325.pdf
    • https://cdn.shopify.com/s/files/1/0435/3789/1482/files/les_miserables_i_dreamed_a_dream_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0433/9240/1558/files/jufoku.pdf
    • https://cdn.shopify.com/s/files/1/0433/8624/1189/files/34091784959.pdf
    • https://cdn.shopify.com/s/files/1/0434/0292/0086/files/zajakopililazu.pdf
    • https://cdn.shopify.com/s/files/1/0429/4115/3439/files/muxativuka.pdf
    • https://cdn.shopify.com/s/files/1/0435/9464/5672/files/nujisojabugifibaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/3615/5809/files/vexutekurukojinubaf.pdf
    • https://cdn.shopify.com/s/files/1/0428/6332/9446/files/16038584382.pdf
    • https://cdn.shopify.com/s/files/1/0431/4087/4408/files/virinafelowe.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_off00005f2e.bin
0b0c18eb5af8525a62d7895b0675504dab78ea9f601cef5efbba6ca91daaa7a1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F2E 5028 bytes
font_01_sfnt_off00007046.bin
cbe95cee854b48871186434aaf1bbd299cb74f49346d4a551a068c116fbaac21
pdf-font-stream PDF embedded font (sfnt) at offset 0x7046 10288 bytes