Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cdf26f2d4d59271…

MALICIOUS

PDF

43.6 KB Created: 2020-08-07 18:32:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57801febaf5c223165284678b07da3fc SHA-1: 8c051dc60261737bcd430f3acd3efd53fe6886ad SHA-256: 2cdf26f2d4d5927114c888280faf433305826c29278a1b8919de1d4044ee80c6
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, traff.cc, which is likely used to obscure the final malicious destination. The document body itself is largely unreadable, but the presence of numerous links suggests a strategy of SEO poisoning or phishing, aiming to lure users to malicious sites.

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.cc/pify?keyword=tecnologias+emergentes+pdf+en+alimentos
    • http://files.doorsbypacay.com/uploads/1/3/2/7/132741486/sipemuriririw.pdf
    • http://files.quixotecommunities.org/uploads/1/3/0/8/130874233/dosexisalimag-zuvowizadesupa.pdf
    • http://files.chynajones.com/uploads/1/3/1/0/131070872/9046089.pdf
    • https://cdn.shopify.com/s/files/1/0432/7201/1931/files/jonobexaxawafazejiwa.pdf
    • https://cdn.shopify.com/s/files/1/0428/0261/0335/files/lufijenawababakobarawa.pdf
    • https://cdn.shopify.com/s/files/1/0435/2425/9992/files/90405476771.pdf
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/30246631799.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1681/files/rafodufopijuxusuvekazej.pdf
    • https://cdn.shopify.com/s/files/1/0427/6230/5702/files/daginijujatu.pdf
    • https://cdn.shopify.com/s/files/1/0433/2103/2859/files/latased.pdf
    • https://cdn.shopify.com/s/files/1/0433/1310/2998/files/92241539481.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/27392185694.pdf
    • https://cdn.shopify.com/s/files/1/0433/4642/8072/files/applied_strength_of_materials_5th_edition.pdf
    • https://doi.org/10.3989/arbor.2001.i661.827
    • 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_off000068cd.bin
0cdace9bff21289ab159869956be8c4ddc25d0a834b0bea20dccfff72934a5f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68CD 5424 bytes
font_01_sfnt_off00007b2a.bin
4d8669689730bf0f7b538102100e86c60bf34b34b23469972c4cbd725a074da5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B2A 11884 bytes

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