Malicious PDF — malware analysis report

Static analysis result for SHA-256 b059c10a4c00dea0…

MALICIOUS

PDF

45.5 KB Created: 2020-09-01 02:45:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7bddeb440c4e53428008ba661c729446 SHA-1: 0b3086364905b64bcabc9731cab10012bc397d93 SHA-256: b059c10a4c00dea0cb005e0399d78eeb4593f96328e7bdc38af272fc89175eaf
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link that redirects to a known malicious infrastructure, specifically ttraff.com. This heuristic, combined with the presence of a large number of external PDF links, suggests a link farm or redirection attack. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure related to a film title.

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/wix?keyword=calibre+film+2018
    • https://cdn.shopify.com/s/files/1/0430/8415/2986/files/86072045567.pdf
    • https://cdn.shopify.com/s/files/1/0432/5795/4467/files/zomekuraveretis.pdf
    • https://cdn.shopify.com/s/files/1/0429/4865/7311/files/decision_making_biases_and_errors_in_management.pdf
    • https://cdn.shopify.com/s/files/1/0428/3446/0828/files/94560802353.pdf
    • https://cdn.shopify.com/s/files/1/0428/0533/0083/files/92805567714.pdf
    • https://cdn.shopify.com/s/files/1/0435/3641/6919/files/xevofazelos.pdf
    • https://cdn.shopify.com/s/files/1/0438/2208/8354/files/rogers_catatonia_scale.pdf
    • https://cdn.shopify.com/s/files/1/0431/1557/7504/files/petujovakugupogilo.pdf
    • https://static.usrfiles.com/ugd/6f7357_6fe8198cd06f4ea1acb6ae3538d50d1f.pdf
    • https://static.usrfiles.com/ugd/b8c837_1aac5195d7cf4d69be7c52fdcdba263f.pdf
    • https://cdn.shopify.com/s/files/1/0433/0219/1269/files/44604927232.pdf
    • https://cdn.shopify.com/s/files/1/0429/6510/6847/files/vegexerebupuvasitolo.pdf
    • https://cdn.shopify.com/s/files/1/0435/7573/8527/files/zuxubeviwumaluruwuxotug.pdf
    • https://cdn.shopify.com/s/files/1/0432/5064/7202/files/binuwujojawekov.pdf
    • https://cdn.shopify.com/s/files/1/0430/4892/7386/files/gufulunekinepale.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_off000074ba.bin
36ffed6d1dae8012af8082155dedcdb904f50bb83b99fa34c7afe8708c0a2b2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74BA 5300 bytes
font_01_sfnt_off000086ab.bin
00893656ba8732e81e5db8ba6fcb4d3a6826b83086261b908be39306893a2532		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86AB 10140 bytes

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