Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd0cce2b7fd9671b…

MALICIOUS

PDF

80.9 KB Created: 2020-08-12 01:23:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45069a8cf72ee10da6635a86e90bc282 SHA-1: 30247a432ff007d43731ae291207a5b8928400c5 SHA-256: cd0cce2b7fd9671b441d332eed73fdff56c990dd4144df6a34d892fc50c73475
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, a technique often used to create link farms for SEO manipulation or to hide malicious URLs. One of the primary URLs, 'https://ttraff.com/pify?keyword=management+perinatal+asphyxia+pdf', is flagged as a malicious redirector. This suggests the document's purpose is to lure users to malicious sites, likely for phishing or to download further malware.

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=management+perinatal+asphyxia+pdf
    • http://files.unccenter.org/uploads/1/3/0/7/130776602/nibevox_rusupuzo_tizomela.pdf
    • http://files.ragsboutique.org/uploads/1/3/1/6/131637308/vonibikeda.pdf
    • http://files.my-bwk.com/uploads/1/3/2/6/132680869/kijuwegomomazen.pdf
    • https://cdn.shopify.com/s/files/1/0436/4396/1504/files/topographic_anatomy_of_upper_limb.pdf
    • https://cdn.shopify.com/s/files/1/0431/5820/8674/files/doxixunufevigibuwivi.pdf
    • https://cdn.shopify.com/s/files/1/0436/1800/9250/files/bibbulmun_track_map_1.pdf
    • https://cdn.shopify.com/s/files/1/0431/7963/8942/files/wozalegutejo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6285/3794/files/53496531775.pdf
    • https://cdn.shopify.com/s/files/1/0431/7826/2689/files/central_texas_driving_school.pdf
    • https://cdn.shopify.com/s/files/1/0433/9476/0862/files/60648137650.pdf
    • https://cdn.shopify.com/s/files/1/0436/9599/7096/files/informal_letter_writing_topics_for_class_7.pdf
    • https://cdn.shopify.com/s/files/1/0432/1899/3320/files/82348573341.pdf
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/33254348648.pdf
    • https://cdn.shopify.com/s/files/1/0430/6495/0946/files/ribepi.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_off0000f85e.bin
90c0b41d1e63d9fd5a0438d36824a3a4b0b35d1006584e18aac67ff1e8a4acd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF85E 5632 bytes
font_01_sfnt_off00010b6d.bin
9e6467ce484d11540d3ffdf8ff6c43908ebdf390b119554ff01b64de0e396a2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B6D 13812 bytes

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