Malicious PDF — malware analysis report

Static analysis result for SHA-256 f900d9a45a975a52…

MALICIOUS

PDF

42.6 KB Created: 2020-09-09 12:07:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 816a34368a5140e1992e1f336ede4a0e SHA-1: 5f639f3a3df69d55ca5174dab08ae6476f45b244 SHA-256: f900d9a45a975a522eb401d0d552c7a7008f729a9b48111164468738cb188fef
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.link/wix?keyword=billies+bounce+pdf'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous embedded links, many of which point to benign content but are likely used to obscure the malicious redirector. The document body contains the malicious URL and appears to be a lure for 'billies bounce pdf'. No scripts were extracted from this sample.

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.link/wix?keyword=billies+bounce+pdf
    • https://static.usrfiles.com/ugd/682d1c_baa933ad4ea64152896515515f14a3d3.pdf
    • https://static.usrfiles.com/ugd/ea9bdf_305c818972ec4a7fa9d587309f842b65.pdf
    • https://static.usrfiles.com/ugd/fb5067_302d96ddbbb34c8786bafe10369afe4a.pdf
    • https://cdn.shopify.com/s/files/1/0432/0926/1217/files/mokigilotiramiwigafa.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/behavior_intervention_plan_template.pdf
    • https://cdn.shopify.com/s/files/1/0431/5440/7578/files/xapaw.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/optiplex_745_specs.pdf
    • https://cdn.shopify.com/s/files/1/0463/0393/6669/files/biologia_del_desarrollo.pdf
    • https://static.usrfiles.com/ugd/4dbf3f_4b9135bb443e466598e2eab2d8cdf99e.pdf
    • https://static.usrfiles.com/ugd/9a242c_10f9753855b546d4aca863381b05f291.pdf
    • https://static.usrfiles.com/ugd/f68081_444e8720c849466482cec9cf1cb3a0b9.pdf
    • https://static.usrfiles.com/ugd/70094d_d71d00a0e9f243fe98f152f6827851cd.pdf
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/9612646674.pdf
    • https://cdn.shopify.com/s/files/1/0435/2576/7320/files/brinkmann_electric_smoker_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/1826/3448/files/tudo_sobre_texto_expositivo_argumentativo.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_off00006a16.bin
d144d3eda2a3e7e61e964c9591ab24d791599fafa50648395701faf23dd7070e
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A16 5032 bytes
font_01_sfnt_off00007b4a.bin
d64830d773ee9e86fb0113d88ba84479bcdef10596ceedcdd32fe981f34af129
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B4A 10152 bytes