Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca2d72d74e09d833…

MALICIOUS

PDF

34.2 KB Created: 2020-08-20 23:04:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f0dea5ec88204a8c6f3541973e22a89 SHA-1: f558403a07c7a517191120d5dd9601d1191f9abd SHA-256: ca2d72d74e09d833e20dab5a77960e6e22eb5549c68011e89e5638e8b235da77
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with the primary link directing to a known malicious redirector service. This suggests the document is designed to lure users into visiting malicious websites, likely for phishing or malware distribution. The presence of a link farm further supports this malicious intent.

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.com/pify?keyword=sentence+fragments+worksheet+7th+grade
    • http://pijekom.fracturedpottery.com/uploads/1/3/0/8/130814729/9638260.pdf
    • http://files.atxshoeplug.com/uploads/1/3/0/8/130874580/d1fc6.pdf
    • http://kolokulen.judithrpetersonphotography.com/uploads/1/3/0/7/130776485/5917258.pdf
    • http://mebab.chabadeli.com/uploads/1/3/2/7/132740478/df7f352.pdf
    • https://cdn.shopify.com/s/files/1/0449/3164/5608/files/happy_birthday_card_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/3164/9689/files/47572467201.pdf
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/pugipivitijopek.pdf
    • https://cdn.shopify.com/s/files/1/0434/0026/5878/files/digital_electronics_basic_mcq_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/tonaru.pdf
    • https://cdn.shopify.com/s/files/1/0440/6099/9830/files/28675289767.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3257/files/narufusowaruwe.pdf
    • https://cdn.shopify.com/s/files/1/0432/3062/5947/files/warranty_deed_form_california.pdf
    • https://cdn.shopify.com/s/files/1/0432/4520/7714/files/97872028068.pdf
    • https://cdn.shopify.com/s/files/1/0431/1197/3025/files/lojepokido.pdf
    • https://cdn.shopify.com/s/files/1/0429/3342/0199/files/revogoxejidigakokefiko.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_off000047ab.bin
55e11fab1286acc2834e6402f11f14451e90c9c9166e33bbfa387e2255c0c850		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47AB 5744 bytes
font_01_sfnt_off00005b20.bin
d60a66061bacb4be67462ba973ba3cbb2908df44f4211d620a0be04289f980ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B20 9656 bytes

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