Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e316c0d22b3c961…

MALICIOUS

PDF

38.9 KB Created: 2020-08-22 06:13:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89c05ae9eddee1086323d106fe98171d SHA-1: 4a562bd26b630bc4be6c274ae6e7748a6d65de24 SHA-256: 8e316c0d22b3c96111d1b2c03d0186abb406f8b362b8e8df2fe9b3c0bbc59bd7
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 external links, a technique often used to create SEO link farms or to redirect users to malicious websites. One of the extracted URLs, 'https://ttraff.com/pify?keyword=cactus+irregular+plural+form', is identified as a known malicious redirector. The presence of this malicious link, alongside numerous other links, strongly suggests an attempt to lure the user to a compromised or malicious destination.

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=cactus+irregular+plural+form
    • http://files.stickandstringtv.com/uploads/1/3/2/3/132303081/6176761.pdf
    • https://cdn.shopify.com/s/files/1/0433/9567/8359/files/everybody_s_fool_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0437/7165/8392/files/89282926957.pdf
    • https://cdn.shopify.com/s/files/1/0432/0775/3888/files/pazixezisamekepanagekuna.pdf
    • https://cdn.shopify.com/s/files/1/0428/8829/8662/files/meluvogivapalulam.pdf
    • https://cdn.shopify.com/s/files/1/0447/0230/2362/files/rojojiw.pdf
    • https://cdn.shopify.com/s/files/1/0431/6109/2250/files/6309279275.pdf
    • https://cdn.shopify.com/s/files/1/0432/8128/5286/files/nosutekewofegemedifidif.pdf
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/livro_dos_espiritos_allan_kardec.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/vuwaxiremesakegadejimetud.pdf
    • https://cdn.shopify.com/s/files/1/0432/3901/4562/files/23938079299.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_off000059c0.bin
b1d99255760002f41d85cf0a93db94cc7ca29e16d5a67b3a4045dd133e37a39d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59C0 5240 bytes
font_01_sfnt_off00006b7e.bin
eb4345c010cbbe0ae0bd710e465fd6d662b70bce405c38fab87973dc85bf038a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B7E 10476 bytes

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