Malicious PDF — malware analysis report

Static analysis result for SHA-256 454ac01ff766251f…

MALICIOUS

PDF

44.8 KB Created: 2020-08-15 16:46:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 609621506d25ef6b47a05f91e8f36d13 SHA-1: fba33c8b8772843a41271dcc24156fdf034d62d2 SHA-256: 454ac01ff766251f76d76bf615ecf8df7e45538c86e604eefe17b30065b5a56d
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one pointing to a known malicious redirector at ttraff.ru. The document body, though partially corrupted, suggests a lure related to a 'sales management cover letter template'. The presence of a link farm heuristic indicates a likely attempt to manipulate search engine results or distribute malicious content. The primary attack pattern involves redirecting the user to malicious infrastructure.

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.ru/pify?keyword=sales+management+cover+letter+template
    • http://files.1944becker.com/uploads/1/3/2/6/132680808/vuvamosokesazajiva.pdf
    • http://jebobuz.greatfallstrapandskeet.com/uploads/1/3/0/9/130969465/4536132.pdf
    • http://soginase.head-to-toe-ministries.com/uploads/1/3/1/3/131383837/5483185.pdf
    • http://files.peoplehelperproject.com/uploads/1/3/2/7/132740925/japabuwoxukizu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wifufokamavobopizevotug.pdf
    • https://cdn.shopify.com/s/files/1/0430/1750/2869/files/catch_your_sun.pdf
    • https://cdn.shopify.com/s/files/1/0434/0393/5911/files/bowuf.pdf
    • https://cdn.shopify.com/s/files/1/0437/1746/0120/files/ariston_solar_water_heater_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0432/5448/1054/files/manual_cinema_4d_r20_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0447/8969/4630/files/42654235627.pdf
    • https://cdn.shopify.com/s/files/1/0440/1430/5430/files/alchemist_book_in_tamil_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/4464/2715/files/95377301892.pdf
    • https://cdn.shopify.com/s/files/1/0428/8705/3471/files/canon_c5250_driver.pdf
    • https://cdn.shopify.com/s/files/1/0437/4819/6506/files/acidimetry_and_alkalimetry_titration_in_non_aqueous_titration.pdf
    • https://cdn.shopify.com/s/files/1/0432/1817/4107/files/design_patterns_c_cheat_sheet.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_off000066d1.bin
9fedacf9ee602cec2f940ce0315be562a931c0d05095097ac53d349352f75ca7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66D1 5416 bytes
font_01_sfnt_off00007928.bin
2c3200d9a822fd5e559b730a7e49ab1fd51c70b13803275c7a368bf410e9d5e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7928 14576 bytes

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