Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3bdf9fe32265e55…

MALICIOUS

PDF

41.5 KB Created: 2020-08-08 16:42:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: faabb241fa63e191c9320c12dfc24996 SHA-1: c9296005a0fab8bccd30a9fc46743e506ed42234 SHA-256: c3bdf9fe32265e55280dc46084dfd3c095d3fc95c7ae8d16c58ef407a8c73280
128 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is used to obscure the final destination. The document body contains a call-to-action phrase, reinforcing the lure to click the embedded malicious link.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/pify?keyword=guided+reading+anecdotal+notes+template+pdf
    • http://jozuzuza.godilio.com/uploads/1/3/2/6/132695663/refufijedufojada.pdf
    • http://xumig.mikeysgunshop.com/uploads/1/3/1/4/131453574/bixuw.pdf
    • http://files.devorenutrition.com/uploads/1/3/0/8/130814246/26d1d.pdf
    • http://files.accentphotographybykim.com/uploads/1/3/1/4/131453498/rowetefodaxit.pdf
    • http://files.artisticcounterculture.com/uploads/1/3/0/7/130740055/jadizanuxija.pdf
    • https://cdn.shopify.com/s/files/1/0428/8797/0975/files/nixez.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/85265619732.pdf
    • https://cdn.shopify.com/s/files/1/0431/2779/9957/files/chief_keef_asap_rocky_download.pdf
    • https://cdn.shopify.com/s/files/1/0436/1535/5042/files/bob_ong_macarthur_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0441/0625/2440/files/97630397561.pdf
    • https://cdn.shopify.com/s/files/1/0430/6914/5241/files/39235626731.pdf
    • https://cdn.shopify.com/s/files/1/0432/6657/2441/files/40342501270.pdf
    • https://cdn.shopify.com/s/files/1/0429/5501/4298/files/motip.pdf
    • https://cdn.shopify.com/s/files/1/0432/7391/2488/files/sudumoguwono.pdf
    • https://cdn.shopify.com/s/files/1/0433/0808/9499/files/37387414422.pdf
    • https://cdn.shopify.com/s/files/1/0428/3334/6719/files/4892386287.pdf
    • https://cdn.shopify.com/s/files/1/0433/4940/9960/files/fobedogujolizojuzam.pdf
    • https://cdn.shopify.com/s/files/1/0434/1052/2268/files/lupazusowupataw.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_off000062df.bin
515e4d92f3a2e4d54513b9a60cd1d15cabe1c14321b09b046d05d213e25bf48c
pdf-font-stream PDF embedded font (sfnt) at offset 0x62DF 5508 bytes
font_01_sfnt_off00007589.bin
1168582d42250e5a20b20d9d3c994ed1e71c9415a0f7db28622b00ea701dcaaa
pdf-font-stream PDF embedded font (sfnt) at offset 0x7589 10456 bytes