Malicious PDF — malware analysis report

Static analysis result for SHA-256 a65e8820f053bb95…

MALICIOUS

PDF

41.9 KB Created: 2020-08-07 19:34:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83cc5db31fcee297828c5be9308740f5 SHA-1: 2df27357e6dcaee6108dc9a5fb93129f0efab9f9 SHA-256: a65e8820f053bb9576b959212a6707bd23f133906449d3ca745ffb20ed2b0cde
120 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, identified as a PDF SEO link farm. One of these links, https://ttraff.ru/pify?keyword=arabesques+gogol+pdf, points to a known malicious redirector. The primary purpose appears to be SEO manipulation or user redirection to potentially harmful content, rather than delivering a direct exploit.

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=arabesques+gogol+pdf
    • http://files.thehealingplacecg.com/uploads/1/3/0/7/130740221/gitutipabudanomux.pdf
    • http://files.yehudiwyner.com/uploads/1/3/0/9/130969545/3d315d757a26db.pdf
    • http://files.pnba-artists.com/uploads/1/3/1/4/131437689/dikoduxidun.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/93616534700.pdf
    • https://cdn.shopify.com/s/files/1/0435/4804/9572/files/golebuzupofi.pdf
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/3727761293.pdf
    • https://cdn.shopify.com/s/files/1/0430/9732/5732/files/tixutafifuxix.pdf
    • https://cdn.shopify.com/s/files/1/0437/5828/9045/files/attestation_de_tmoignage_prud_hommes.pdf
    • https://cdn.shopify.com/s/files/1/0437/8719/0434/files/mofetojom.pdf
    • https://cdn.shopify.com/s/files/1/0432/2492/4319/files/20326955790.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9460/files/novunobimakubogagedezemus.pdf
    • https://cdn.shopify.com/s/files/1/0431/1423/4013/files/96016328716.pdf
    • https://cdn.shopify.com/s/files/1/0430/5528/4378/files/luzitefabisazeduze.pdf
    • https://cdn.shopify.com/s/files/1/0431/1806/7876/files/65733584835.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/buwukepenarunowara.pdf
    • https://cdn.shopify.com/s/files/1/0437/6618/6135/files/muxenigereje.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_off00006701.bin
c59e3e02f91e036c41343c32762814fcf55523c9ece85effa82872fefb744817		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6701 5464 bytes
font_01_sfnt_off00007994.bin
7c30f11ba68fd054212af0d41b59ca433b0d5214161acb2bf7a7e942310e2b0d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7994 9732 bytes

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