Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee6f6cc436117bc7…

MALICIOUS

PDF

54.3 KB Created: 2020-08-27 23:43:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 670c2ea46eda790c4c3008fa5b8b8479 SHA-1: 89a4d7251e24ab45753910f6ef3872c86abd8e7b SHA-256: ee6f6cc436117bc70f46e7467bc8ac533357525e93b176fed031215bc4577b36
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=vlastn%25C3%25A9+cobra+tetovanie'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0429/7415/0809/files/transformer_voltage_vector_diagram.pdf'. The document body is heavily obfuscated but contains the redirector URL, suggesting the primary intent is to redirect 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=vlastn%25C3%25A9+cobra+tetovanie
    • http://files.c3churchnorthcity.com/uploads/1/3/1/3/131380345/nezofakup.pdf
    • http://files.bigtrecreation.com/uploads/1/3/1/6/131606537/1857207.pdf
    • http://kapavomaj.annensor.com/uploads/1/3/0/8/130814851/70af12e30f1.pdf
    • http://bazeze.constableradio.org/uploads/1/3/1/4/131407406/519f83f385f780.pdf
    • https://cdn.shopify.com/s/files/1/0429/7415/0809/files/transformer_voltage_vector_diagram.pdf
    • https://cdn.shopify.com/s/files/1/0430/4073/5381/files/free_download_small_to_word_conversion.pdf
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/43627157672.pdf
    • https://cdn.shopify.com/s/files/1/0435/9041/8591/files/12430829609.pdf
    • https://cdn.shopify.com/s/files/1/0436/0755/6258/files/vujimepagulogejewox.pdf
    • https://cdn.shopify.com/s/files/1/0433/1264/4251/files/92778430245.pdf
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/54502598262.pdf
    • https://cdn.shopify.com/s/files/1/0434/1760/0152/files/55101878495.pdf
    • https://cdn.shopify.com/s/files/1/0432/0133/1360/files/airline_ticket_reservation_system.pdf
    • https://cdn.shopify.com/s/files/1/0432/5277/7118/files/public_relation_officer_duties_and_responsibilities_in_hospital.pdf
    • https://cdn.shopify.com/s/files/1/0431/6826/8448/files/73624331926.pdf
    • https://cdn.shopify.com/s/files/1/0433/5943/6951/files/sepinejexevapupanipilag.pdf
    • https://cdn.shopify.com/s/files/1/0429/5750/4668/files/morowejigilinomajomaka.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/
    • https://cdn.shopify.com/s/files/1/0432/0133/1360/f

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007cbc.bin
98337a7d6113bf92f94edee5b75a9a45097af371ca8e2edc77a781fe604da104
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CBC 5100 bytes
font_01_sfnt_off00008dda.bin
6f0b7dca2f001884b14f19f280bb5b7f04e61f98f4720f37991127ae80ffd712
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DDA 12444 bytes
font_02_sfnt_off0000b42d.bin
c3d0ee408bee49a88931d2ac630a9fb52e88a46fabab5a72aa19e78bbe1d3826
pdf-font-stream PDF embedded font (sfnt) at offset 0xB42D 16376 bytes