Malicious PDF — malware analysis report

Static analysis result for SHA-256 b80c152b3f798b67…

MALICIOUS

PDF

58.8 KB Created: 2020-08-30 04:58:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4d14e2283a0d9426756b1778f696a49b SHA-1: 26cab5412a990eb9d8591d7f5b0c5064dbc2f355 SHA-256: b80c152b3f798b67c5f60a836fdaee1e542118140d75b50029fa831e30052c97
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, which points to 'https://ttraff.cc/wix?keyword=ibm+thinkpad+t60+drivers'. This URL is presented within the document body, disguised as a driver download link. The document also contains a large number of embedded links, many pointing to Shopify, suggesting a link farm for SEO manipulation or to obscure the malicious redirector. 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.cc/wix?keyword=ibm+thinkpad+t60+drivers
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/18944664442.pdf
    • https://cdn.shopify.com/s/files/1/0432/7217/5784/files/brche_addition.pdf
    • https://cdn.shopify.com/s/files/1/0431/1633/1172/files/nutigazifufavigifaros.pdf
    • https://cdn.shopify.com/s/files/1/0429/8221/1735/files/pelelemopoba.pdf
    • https://cdn.shopify.com/s/files/1/0432/5585/7315/files/wugebujudininegipirozabob.pdf
    • https://cdn.shopify.com/s/files/1/0427/9740/0223/files/interstate_battery_charger_12v1500_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gofifarigomikidapowokov.pdf
    • https://static.usrfiles.com/ugd/b8c837_ab7c7bcb4dd4420a91584ebe5a9a0103.pdf
    • https://static.usrfiles.com/ugd/576447_432da2570c434670afba9806deb8eee3.pdf
    • https://static.usrfiles.com/ugd/b8c837_40fac45572904770b6423b61e4f8c578.pdf
    • https://static.usrfiles.com/ugd/a1fb72_79565c69336947e990832e44cf34130c.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_off00009bb1.bin
69f539808ce8b051856c5fb55c12233cd7c6166f054821cc1224687f87d45633		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BB1 5664 bytes
font_01_sfnt_off0000aebe.bin
e41fbe183615426d087a2022c1129db373c4c2ad4187a71d9ac829f63931fdd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAEBE 14872 bytes

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