Malicious PDF — malware analysis report

Static analysis result for SHA-256 d96b93e7ed26639f…

MALICIOUS

PDF

66.4 KB Created: 2020-08-01 21:26:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60f36557c9f67d21411490f97efb437f SHA-1: c643f1e68e527eb1d945f26621c31a7bf98f1745 SHA-256: d96b93e7ed26639f67550efc4daf7edf3b93f7077c781c1a71c3d7ad205e77eb
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 pointing to Shopify domains, which is indicative of a link farm. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=garage+parking+assistants'. The document body, though heavily obfuscated, contains the same URL, suggesting the primary purpose is to redirect users to malicious infrastructure. 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.ru/pify?keyword=garage+parking+assistants
    • http://files.roundmotor.com/uploads/1/3/1/6/131637606/299f60cdf6ece.pdf
    • http://files.endoflifedoula.co/uploads/1/3/1/4/131452840/mumovik-puzolitirofex-kowokewelidi.pdf
    • http://files.learningsasia.com/uploads/1/3/1/4/131453543/72d427d.pdf
    • http://files.blings-my-thing.com/uploads/1/3/2/6/132681783/leboxosojudej_matogasodisiraw_juwibes.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/41573536221.pdf
    • https://cdn.shopify.com/s/files/1/0431/4647/7725/files/vaxanopesutuponexegot.pdf
    • https://cdn.shopify.com/s/files/1/0437/7912/9501/files/fodivokibajuvixurizugu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7913/0531/files/81394695947.pdf
    • https://cdn.shopify.com/s/files/1/0434/7704/1304/files/dimujekasunoraporilorita.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pejolezogumulugadajo.pdf
    • https://cdn.shopify.com/s/files/1/0430/7602/6522/files/rosuti.pdf
    • https://cdn.shopify.com/s/files/1/0432/2023/8503/files/bivosibos.pdf
    • https://cdn.shopify.com/s/files/1/0431/4228/3432/files/27740182384.pdf
    • https://cdn.shopify.com/s/files/1/0429/8627/4977/files/76419765977.pdf
    • https://cdn.shopify.com/s/files/1/0433/7539/4979/files/11862841050.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/22650439267.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_off0000b875.bin
f1ec095b06f6d7787ba6c8c6a304f243c36e730eb0cb8205ac778e0d78ce7a44		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB875 5052 bytes
font_01_sfnt_off0000c9bc.bin
86ab12e60aef1039aeaec6d08c6b9f7e7f27c301101a7b1cde4f9ea9d3900cfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC9BC 15476 bytes

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