Malicious PDF — malware analysis report

Static analysis result for SHA-256 82d2fc768529474f…

MALICIOUS

PDF

46.1 KB Created: 2020-08-31 03:20:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c29b7b68dffc0b72fe925923f4340f20 SHA-1: 3cacfb552017aedc923e833e2d8f1959d6606076 SHA-256: 82d2fc768529474f2b645a05928928e030d9c76b87546ee39815da8653279d63
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic indicating it links to known malicious redirector infrastructure. Additionally, it features a link farm with numerous external PDF links, suggesting a tactic to distribute malicious content or manipulate search engine results. The presence of a 'download button' lure further supports a phishing or social engineering attack pattern. The primary malicious IOC is the redirector URL.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/wix?keyword=digital+metaphors+report+builder+for
    • https://cdn.shopify.com/s/files/1/0440/5123/4981/files/lucky_egg_platinum.pdf
    • https://cdn.shopify.com/s/files/1/0430/7940/1632/files/dopafonomifunojiroj.pdf
    • https://cdn.shopify.com/s/files/1/0436/6116/4697/files/equipment_rental_agreement_template_alberta.pdf
    • https://cdn.shopify.com/s/files/1/0430/8120/3873/files/51848606892.pdf
    • https://static.usrfiles.com/ugd/67e251_116018f96f5c4972925d5d45fb8d6934.pdf
    • https://static.usrfiles.com/ugd/9ea9b6_ed7c95601f6947c48c3ef3d78225dcbb.pdf
    • https://cdn.shopify.com/s/files/1/0427/9504/0924/files/35216020727.pdf
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/55596377698.pdf
    • https://cdn.shopify.com/s/files/1/0431/6351/7092/files/gonejato.pdf
    • https://cdn.shopify.com/s/files/1/0429/8702/8639/files/87453439543.pdf
    • https://cdn.shopify.com/s/files/1/0438/6521/1035/files/89592914345.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_off00006dce.bin
6d601ba04dcfe1c195acfbed5b5e4b8d2ec34e0311428bf9e9000e4e4a856fbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DCE 5592 bytes
font_01_sfnt_off000080a5.bin
be57e1571b729953ee4421efa231b0e2eb140fb7e3560a67cc2bbda5df737b61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80A5 13872 bytes

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