Malicious PDF — malware analysis report

Static analysis result for SHA-256 29407bc338c5e686…

MALICIOUS

PDF

69.8 KB Created: 2020-08-10 10:14:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7a4bb599d5a6f974c99e6d0602662896 SHA-1: ff82bf6bab95d01c8e2732cc36d907e8c65e16a6 SHA-256: 29407bc338c5e686ec7b37becf35ea795dd7b3524979f2b44e47458eef38a2ec
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.cc/pify?keyword=aristotle+nicomachean+ethics+book+8+pdf'. This indicates the document's primary purpose is to trick the user into visiting this malicious URL. The PDF also contains a link farm heuristic, suggesting it's part of a larger SEO poisoning or spam campaign. No scripts were extracted, and the document body is heavily obfuscated.

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.cc/pify?keyword=aristotle+nicomachean+ethics+book+8+pdf
    • http://files.spiritualgypsysoul.com/uploads/1/3/2/6/132681617/rarexared-supiwe.pdf
    • http://files.madart-studios.com/uploads/1/3/2/6/132680852/353034.pdf
    • http://files.cedarscapesllc.com/uploads/1/3/1/4/131409794/xararene-tolijopugo-kefokesifef-xevevutipa.pdf
    • http://files.bluebirchoutfitters.com/uploads/1/3/1/3/131379439/tekelepiroragamek.pdf
    • http://files.tomdangofficial.com/uploads/1/3/0/7/130775429/xawanomonije_lijal_dunafudidok.pdf
    • https://cdn.shopify.com/s/files/1/0432/4130/8320/files/gizizositapafaxa.pdf
    • https://cdn.shopify.com/s/files/1/0429/6392/7206/files/nobijuwuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/5766/7487/files/skf_thrust_ball_bearing_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0431/0158/5570/files/waxewowidapaxu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1909/8522/files/11996108321.pdf
    • https://cdn.shopify.com/s/files/1/0436/0421/3917/files/the_canterville_ghost.pdf
    • https://cdn.shopify.com/s/files/1/0448/1276/3298/files/adobe_flash_professional_cs6_serial_number.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nisej.pdf
    • https://cdn.shopify.com/s/files/1/0444/2266/0263/files/mini_budget_2020_19_pakistan.pdf
    • https://cdn.shopify.com/s/files/1/0431/1161/2572/files/curriculum_and_material_development_in_english_language_teaching.pdf
    • https://cdn.shopify.com/s/files/1/0449/9108/6750/files/affairs_cloud_current_affairs_march_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/1387/3569/files/blood_knot_athol_fugard.pdf
    • https://cdn.shopify.com/s/files/1/0431/1026/9085/files/99296278304.pdf
    • https://cdn.shopify.com/s/files/1/0433/1080/9256/files/55473035090.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_off0000d41d.bin
9f3a827b34d8c424e4406cab78d8aac542b604868545fc0b951c97a6a75c82a2
pdf-font-stream PDF embedded font (sfnt) at offset 0xD41D 5780 bytes
font_01_sfnt_off0000e79a.bin
939c3fdb5f6b292ba60fc3c3efc1af6538f0a25d118512fe0c086ed83cceb0de
pdf-font-stream PDF embedded font (sfnt) at offset 0xE79A 9868 bytes