Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe064486a49c6e71…

MALICIOUS

PDF

41.8 KB Created: 2020-08-03 00:16:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9c8ecaa54be6945b74d6a15323bf8ad7 SHA-1: 1e0fca2e9c77007df5309ed06998a75d4c74fc25 SHA-256: fe064486a49c6e71762d5432bd080ebba7dd341966db3ca8438eec0a3dabb536
150 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, many pointing to Shopify domains, which is indicative of a link farm. One of the primary links, 'https://ttraff.ru/pify?keyword=factorio+balancer+blueprint+book', is flagged as a malicious redirector. This suggests the document's purpose is to lure users through SEO poisoning or a similar tactic to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=factorio+balancer+blueprint+book
    • http://files.berenikakolomycka.pl/uploads/1/3/0/7/130739968/mefirul-jikeselokodale-darerased-simajanegenutu.pdf
    • http://files.threeravenspianostudio.com/uploads/1/3/1/4/131407493/zepegerifiporeluput.pdf
    • http://files.townofhorseshoebeachfl.com/uploads/1/3/1/3/131380177/zatagazopex.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/muzoguganava.pdf
    • https://cdn.shopify.com/s/files/1/0431/1816/6167/files/pagawanagapivafonobaxi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/gediv.pdf
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/21132294515.pdf
    • https://cdn.shopify.com/s/files/1/0431/8799/4792/files/15144187247.pdf
    • https://cdn.shopify.com/s/files/1/0432/5828/2152/files/mcdougal_littell_algebra_1.pdf
    • https://cdn.shopify.com/s/files/1/0429/0553/4620/files/stephen_king_it_reddit.pdf
    • https://cdn.shopify.com/s/files/1/0433/2450/6266/files/41013270725.pdf
    • https://cdn.shopify.com/s/files/1/0433/5491/4981/files/24321841043.pdf
    • https://cdn.shopify.com/s/files/1/0428/7699/3695/files/45334481872.pdf
    • https://cdn.shopify.com/s/files/1/0431/4906/6397/files/27898520257.pdf
    • https://cdn.shopify.com/s/files/1/0431/9110/7742/files/2014_honda_accord_maintenance_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0440/8875/4328/files/6140556664.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_off00006605.bin
e74403369dc5817cf6996f93491f80bcba1a1348e6534968b963cf9692914e50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6605 4908 bytes
font_01_sfnt_off000076c6.bin
9a01609e83b058b04e807b0cecffa300a5c1ea871e4a50da35301cc4055d96fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76C6 10580 bytes

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