Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c6a5e53b7024c8d…

MALICIOUS

PDF

68.1 KB Created: 2020-08-31 06:14:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73d58e13a89d0f4d475dfb910737d48d SHA-1: 61bd34dfc26a0b58b9ffd1d5964e89110f7787e8 SHA-256: 3c6a5e53b7024c8d87bdbf4e047b8611a0dadd8e66198905bd552dc323d724c0
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.ru/wix?keyword=fettende+creme+pickel+meadows'. This indicates the document's primary purpose is to lure the user to a potentially harmful external site. The PDF also contains a link farm heuristic, suggesting a broader SEO-based distribution strategy. No scripts were extracted, limiting further analysis of the payload.

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/wix?keyword=fettende+creme+pickel+meadows
    • https://cdn.shopify.com/s/files/1/0432/2246/6727/files/17371680636.pdf
    • https://cdn.shopify.com/s/files/1/0439/9860/9566/files/zufevelexesusawepux.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xarapidarobumebavo.pdf
    • https://cdn.shopify.com/s/files/1/0434/0157/6602/files/94297225164.pdf
    • https://static.usrfiles.com/ugd/eb4c03_9099d2e65c794456828705ac1eff5d4b.pdf
    • https://static.usrfiles.com/ugd/f1780b_771087ac69904bab8647cb9584a621a2.pdf
    • https://static.usrfiles.com/ugd/c068f8_a1f3b6a90ae34cebbb994a397d9d8057.pdf
    • https://static.usrfiles.com/ugd/b8c837_44cde49ef32640d2be1d6a7a6906f519.pdf
    • https://static.usrfiles.com/ugd/544c7e_b6ef436d5b784bfdb465fe68ac9c79f9.pdf
    • https://cdn.shopify.com/s/files/1/0440/9815/8744/files/846466214.pdf
    • https://cdn.shopify.com/s/files/1/0431/6089/5650/files/30658761687.pdf
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/rectangular_coordinate_system_examples_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/1111/3123/files/type_racer_hacks.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b32f.bin
8d491bcfcdf4397909289fdaac8c2bece5e33769189626e825e9bbac694d4ee9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB32F 4084 bytes
font_01_sfnt_off0000c1a4.bin
ad170beede68d056f895d5cb3cae91090bd9d6b5ee3e6739962c9cac4043e6a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC1A4 5332 bytes
font_02_sfnt_off0000d3bf.bin
3887e3b61e49896e08d42d75071a85d683861722841d7939dc41bd90e9990a30		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD3BF 14864 bytes

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