Malicious PDF — malware analysis report

Static analysis result for SHA-256 f29b0e7008cc8b71…

MALICIOUS

PDF

43.6 KB Created: 2020-08-19 09:53:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b5a84d8a9d2664a5a4f6d7adaad9a48f SHA-1: 0b34359e6cde4b7b9fd5c320ae5fd83d4132d33e SHA-256: f29b0e7008cc8b7129f161c886025d19ec5742850f89650542a98d0ef4c4ece7
150 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 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though partially corrupted, includes the same redirector URL and a Shopify URL, suggesting a lure to external content. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=just+natural+dog+food+feeding+guide
    • http://files.fasthandyman.us/uploads/1/3/0/8/130814279/2836557.pdf
    • http://files.sanmarinogirlscouts.com/uploads/1/3/1/4/131482953/xumilufefi-ditobebu.pdf
    • http://dalari.atasteofdarkvanilla.com/uploads/1/3/1/6/131636948/d120790c19c5f58.pdf
    • http://files.dantramte.com/uploads/1/3/0/8/130813639/gurufujinuzusipikex.pdf
    • https://cdn.shopify.com/s/files/1/0437/4000/4501/files/literacy_test_example.pdf
    • https://cdn.shopify.com/s/files/1/0431/2124/6370/files/google_docs_resume_and_cover_letter_templates.pdf
    • https://cdn.shopify.com/s/files/1/0431/6866/1670/files/80926109032.pdf
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/ramizeme.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dosadibevejigavo.pdf
    • https://cdn.shopify.com/s/files/1/0441/2735/5032/files/33728303306.pdf
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/estratgias_de_marketing_digital_e_e_commerce_livro.pdf
    • https://cdn.shopify.com/s/files/1/0433/8234/1781/files/bathukamma_songs_lyrics_in_telugu_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/3081/4626/files/aprender_a_leer_y_escribir_adultos.pdf
    • https://cdn.shopify.com/s/files/1/0431/6784/2465/files/63556359649.pdf
    • https://cdn.shopify.com/s/files/1/0439/9818/3582/files/wexutoguvibabavitej.pdf
    • https://cdn.shopify.com/s/files/1/0433/5632/3995/files/labelizadatolazoluv.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_off00006ca9.bin
7551f122c39cff96ea087255a7dc3a83272b0ec51be5256d97c384cfcb9e6308
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA9 5064 bytes
font_01_sfnt_off00007dec.bin
fbddde6e429d54cbdc3a5d52f6a07899c751d6bdc2bb9fa51c4729de8b6e1d96
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DEC 10492 bytes