Malicious PDF — malware analysis report

Static analysis result for SHA-256 3abd8f471efa99db…

MALICIOUS

PDF

38.6 KB Created: 2020-08-25 16:14:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f592acfb83ebafa33325601ffd03e34 SHA-1: 4a385013a05193d2635fe9f1ab77154d0d5d321d SHA-256: 3abd8f471efa99dba4ffc93bcf81d821f84410da6c9bf259a4e05b386fbcf15d
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=gta+sa+copland+2006'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0446/6756/8291/files/modern_chemistry_textbook_answers_page_86.pdf'. The document body contains obfuscated text that includes the malicious URL, further supporting the redirection attempt.

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=gta+sa+copland+2006
    • http://files.celebratetogetherevents.com/uploads/1/3/2/6/132695829/46b5f53.pdf
    • http://lawixafo.ikhlastours.co.nz/uploads/1/3/2/3/132303093/9422080.pdf
    • http://files.edengrau.com/uploads/1/3/1/0/131070888/a03b704d73.pdf
    • http://mikawawid.compassengut.com/uploads/1/3/2/7/132712336/5870094.pdf
    • http://files.celebratetogethe
    • https://cdn.shopify.com/s/files/1/0446/6756/8291/files/modern_chemistry_textbook_answers_page_86.pdf
    • https://cdn.shopify.com/s/files/1/0433/5301/4423/files/nosipi.pdf
    • https://cdn.shopify.com/s/files/1/0432/0002/0635/files/fivoloserigajixobumi.pdf
    • https://cdn.shopify.com/s/files/1/0437/5206/3125/files/chemistry_seventh_edition_zumdahl.pdf
    • https://cdn.shopify.com/s/files/1/0441/1945/7944/files/xufomesapojupanirufibe.pdf
    • https://cdn.shopify.com/s/files/1/0440/2626/5765/files/ponemubabesiva.pdf
    • https://cdn.shopify.com/s/files/1/0431/0145/4500/files/3979895292.pdf
    • https://cdn.shopify.com/s/files/1/0437/7395/2158/files/bikumikarupetiwetapire.pdf
    • https://cdn.shopify.com/s/files/1/0432/1355/3827/files/defaded.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_off000055d2.bin
001ce9a646d86b96b001618a4159d24483f955cc8e3bd8c8d8c7fecc5ddc798a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55D2 5428 bytes
font_01_sfnt_off00006856.bin
c79b5d99e336fa7d518f72731f836bd20770832d6a0dcad0cf9cbf471f29689f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6856 10916 bytes

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