Malicious PDF — malware analysis report

Static analysis result for SHA-256 d97c6d563aed6af0…

MALICIOUS

PDF

41.5 KB Created: 2020-08-28 01:21:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43c9fb52937ff0457bf05e9100c8af81 SHA-1: 46499dc7c9271759d43f6cc338f71cb7460c48c4 SHA-256: d97c6d563aed6af0ab64e0654441516dafa7193ee44d7b96ed00c4514d010adb
120 Risk Score

Malware Insights

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

The PDF file 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, 'https://ttraff.cc/pify?keyword=deap+vally+sistrionix+deluxe+rar', suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, also contains this URL and other links to PDF files hosted on various domains, indicating a link farm strategy to potentially distribute further malicious content or conduct SEO poisoning.

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=deap+vally+sistrionix+deluxe+rar
    • http://files.officialmyrtlebeachsports.com/uploads/1/3/1/0/131070284/2b08d09f5aeb.pdf
    • http://files.ishopandmore.com/uploads/1/3/0/8/130874679/6336723.pdf
    • http://dunos.lumenctr.org/uploads/1/3/2/6/132683014/dozenefedodotilele.pdf
    • https://cdn.shopify.com/s/files/1/0433/0323/9835/files/wutudemuvigitiwajegel.pdf
    • https://cdn.shopify.com/s/files/1/0448/8429/5847/files/ornamental_horticulture_books.pdf
    • https://cdn.shopify.com/s/files/1/0438/5079/3122/files/sufepuzegabapavur.pdf
    • https://cdn.shopify.com/s/files/1/0429/2077/1751/files/thomson_dpl_550_ht.pdf
    • https://cdn.shopify.com/s/files/1/0430/1740/4573/files/bufotof.pdf
    • https://cdn.shopify.com/s/files/1/0433/2113/1161/files/35059981157.pdf
    • https://cdn.shopify.com/s/files/1/0427/5362/2182/files/types_of_software_in_computer.pdf
    • https://cdn.shopify.com/s/files/1/0440/2397/2005/files/74678955440.pdf
    • https://cdn.shopify.com/s/files/1/0447/9696/9121/files/apexogenesis_and_apexification.pdf
    • https://cdn.shopify.com/s/files/1/0437/4318/2999/files/kalenipe.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/gegovegiduzugagip.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_off0000563f.bin
d7d71002e1bc2a1ccf50f25f7daeec8fb8b450088347d15307b1920327bf37c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x563F 5180 bytes
font_01_sfnt_off000067fc.bin
d46b9d7362f981ed12ee087211fd82bbd3265c7d2a23b34ab303356bbb8cd230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67FC 15404 bytes

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