Malicious PDF — malware analysis report

Static analysis result for SHA-256 51c63062df6008b7…

MALICIOUS

PDF

45.6 KB Created: 2020-07-25 11:41:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62885ecec80d00dfdad3c05014276264 SHA-1: 82c3a1441b6e74dd4de9615b42badb890d2ae69c SHA-256: 51c63062df6008b7a4fae20d692db3d9d458c718de1db805f6305b1112c25c5e
160 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link pointing to traff.ru, which is associated with malicious activity. Additionally, it features a large number of embedded links to PDFs hosted on Shopify, likely part of an SEO link farm. The document body and heuristics indicate a social engineering lure to install a browser extension or update, a common tactic for malware delivery or credential harvesting. No scripts were extracted, limiting the analysis of direct payload execution.

Heuristics 4

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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=chrome+exe+file+free++for+pc
    • http://files.maisonmodulaireautonome.com/uploads/1/3/1/3/131384301/tevuje_xeduturejuw_bibebi_bigudukij.pdf
    • http://files.birchleystea.co.uk/uploads/1/3/0/7/130740068/bogima-vewesomos-sibijurimubo-losuzemux.pdf
    • http://files.movingmemorycompany.com/uploads/1/3/2/8/132815148/6867031.pdf
    • http://files.nomadicwellness.com/uploads/1/3/1/3/131380841/533a358d324aa1.pdf
    • https://cdn.shopify.com/s/files/1/0435/1649/3976/files/96243237546.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3444/files/85100745248.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wajafaliwufenosikem.pdf
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/tavejodo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3900/6615/files/zopujijepivigez.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30617095305.pdf
    • https://cdn.shopify.com/s/files/1/0434/7261/7637/files/jifaxiroxuz.pdf
    • https://cdn.shopify.com/s/files/1/0434/1104/6561/files/fegupojebepuri.pdf
    • https://cdn.shopify.com/s/files/1/0427/7813/2636/files/56107960618.pdf
    • https://cdn.shopify.com/s/files/1/0434/0331/3315/files/sabupororux.pdf
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/sagife.pdf
    • https://cdn.shopify.com/s/files/1/0436/4946/6526/files/77299984519.pdf
    • https://cdn.shopify.com/s/files/1/0428/9963/6390/files/53593860610.pdf
    • https://cdn.shopify.com/s/files/1/0435/0119/1328/files/modifegagaputisamiru.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_off000076c1.bin
c020f0f3935a693b7432af551e964646a1becd529e94a7147a3422df7bc29c77
pdf-font-stream PDF embedded font (sfnt) at offset 0x76C1 4560 bytes
font_01_sfnt_off00008641.bin
2a90b78f704df0b6317d553de9b62f9bdf96ee09ecc761a034b14cf9463b30e4
pdf-font-stream PDF embedded font (sfnt) at offset 0x8641 10228 bytes