Malicious PDF — malware analysis report

Static analysis result for SHA-256 92d12efe45b15540…

MALICIOUS

PDF

41.1 KB Created: 2020-08-11 04:54:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67465a74ec46e827488e6f63e21c1654 SHA-1: 7a0dfe18c79f47bef95ed808c12ad855c662f0f8 SHA-256: 92d12efe45b155403fd5ad317f83c79347a9e303f548296636ff9dcb18d2abbe
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one critical heuristic identifying a link to a known malicious redirector at 'ttraff.com'. The document body, though partially corrupted, includes the text 'Kawasaki z250 service manual pdf', suggesting a lure to entice users to click the malicious link. The presence of a large number of external PDF links, many hosted on Shopify, indicates a potential SEO link farm used to obscure the malicious redirector.

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/wb?keyword=kawasaki%20z250%20service%20manual%20pdf
    • http://files.pinnaclechiropractic.ca/uploads/1/3/1/1/131164428/4190226.pdf
    • http://bexaf.margotmargaux.com/uploads/1/3/1/4/131453536/nufiw.pdf
    • http://files.manchesterctpal.org/uploads/1/3/1/0/131071166/6270390.pdf
    • http://files.thecreativitycore.com/uploads/1/3/0/7/130740623/4378807.pdf
    • http://files.lifeconnectioncenter.org/uploads/1/3/0/8/130814783/f33b09b0061fb4f.pdf
    • https://cdn.shopify.com/s/files/1/0447/1917/7882/files/basalto_caracteristicas.pdf
    • https://cdn.shopify.com/s/files/1/0435/0246/9285/files/69123500144.pdf
    • https://cdn.shopify.com/s/files/1/0437/7886/7354/files/chef_town_game.pdf
    • https://cdn.shopify.com/s/files/1/0431/4411/8428/files/causas_de_las_reformas_borbonicas.pdf
    • https://cdn.shopify.com/s/files/1/0434/7287/9782/files/zexetitojisir.pdf
    • https://cdn.shopify.com/s/files/1/0428/7486/3772/files/92738019017.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1369814796.pdf
    • https://cdn.shopify.com/s/files/1/0431/6925/1487/files/likigomesoxiwudejalivudo.pdf
    • https://cdn.shopify.com/s/files/1/0437/0271/4536/files/gudolokud.pdf
    • https://cdn.shopify.com/s/files/1/0434/6019/8557/files/wuzumesixufufukosi.pdf
    • https://cdn.shopify.com/s/files/1/0435/3854/6840/files/44388284046.pdf
    • https://cdn.shopify.com/s/files/1/0428/5664/4774/files/sepelifitegil.pdf
    • https://cdn.shopify.com/s/files/1/0429/7188/9817/files/white_collar_crime_definition.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_off00005ee4.bin
1b51db78e72fdc7be3531566d3c29157882a03a888707b65e1809b39838ef458
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE4 5936 bytes
font_01_sfnt_off00007314.bin
266e27d16c392b687bf5b0626d94cc2766e4ec02497849c359f77ac73ff6cf33
pdf-font-stream PDF embedded font (sfnt) at offset 0x7314 10480 bytes