Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7e853183f0bf3f3…

MALICIOUS

PDF

49.8 KB Created: 2020-08-07 20:30:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e4bc548ffdb578e53f101babcc3e72d SHA-1: c2a059d5c45fe1f9c0d24c5dd974744a5e50bce2 SHA-256: a7e853183f0bf3f3a562a170b979c1714614851e8d3e7f78e8158457e6f0f34c
160 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link to 'ttraff.cc', indicating a social engineering lure to redirect users to malicious content. The heuristic 'SE_BROWSER_INSTALL_LURE' further suggests the document's content is designed to trick the user into performing an action, such as installing a browser extension or update. No scripts were extracted, but the presence of multiple embedded URLs points towards a phishing or redirection attack.

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.cc/wb?keyword=cisco%20sg300-28sfp%2028-port%20gigabit%20sfp%20managed%20switch%20pdf
    • http://files.galapagosislandsoftware.com/uploads/1/3/0/8/130814208/wowodiponasowep.pdf
    • http://files.wayoflyferadio.com/uploads/1/3/1/4/131409333/4d835.pdf
    • http://files.iscad.co.uk/uploads/1/3/1/3/131383478/8042507.pdf
    • http://files.drydencompany.com/uploads/1/3/0/7/130739802/gejipupaxaje-tajurubi.pdf
    • https://cdn.shopify.com/s/files/1/0434/7396/1125/files/canif_autosar.pdf
    • https://cdn.shopify.com/s/files/1/0431/7990/1096/files/jawunosa.pdf
    • https://cdn.shopify.com/s/files/1/0428/5959/3894/files/26276260095.pdf
    • https://cdn.shopify.com/s/files/1/0430/0609/9605/files/fuwatoxolaxanilapit.pdf
    • https://cdn.shopify.com/s/files/1/0431/3432/0794/files/powufexevovotivelip.pdf
    • https://cdn.shopify.com/s/files/1/0429/1756/0473/files/80360746168.pdf
    • https://cdn.shopify.com/s/files/1/0439/3995/4856/files/statistical_learning_theory_vapnik.pdf
    • https://cdn.shopify.com/s/files/1/0432/9986/4734/files/nodibiso.pdf
    • https://cdn.shopify.com/s/files/1/0435/0250/2054/files/80s_drum_samples.pdf
    • https://cdn.shopify.com/s/files/1/0429/7916/4314/files/abecedario_completo_mayusculas_y_minusculas.pdf
    • https://cdn.shopify.com/s/files/1/0438/8323/3448/files/1500369504.pdf
    • https://cdn.shopify.com/s/files/1/0430/7510/9013/files/zomeletigive.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006425.bin
266c666f57382bebb6ea18eadb3da9108ff841105bc14c9f8466c16660ff21e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x6425 6340 bytes
font_01_sfnt_off00007995.bin
8e099829bd45b99d5b6dbc392841d06a9b74835577e3accb01e0134af5a39313
pdf-font-stream PDF embedded font (sfnt) at offset 0x7995 9720 bytes
font_02_sfnt_off000094cb.bin
ae51638dcb2cfa0f48c96a7c32e6ad62387ef4fae5901f230fb91db2db7cb852
pdf-font-stream PDF embedded font (sfnt) at offset 0x94CB 10824 bytes