Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbd2bfe5c169e166…

MALICIOUS

PDF

45.8 KB Created: 2020-08-31 06:52:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 759d9f001e95135e8347976b85807525 SHA-1: 5c15ba9f6e2decba58025ecf4312d9c83e6a39ba SHA-256: bbd2bfe5c169e16671874b96c052ba4a62d93e119a3c6ebb370643a8b2fd17da
120 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, ttraff.com, disguised as 'ccrn practice questions pdf'. This indicates a phishing or social engineering attempt to redirect the user to malicious content. The PDF also contains a large number of external links, many pointing to Shopify, suggesting a link farm for SEO manipulation or to obscure the final malicious destination.

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/wix?keyword=ccrn+practice+questions+pdf
    • https://cdn.shopify.com/s/files/1/0465/5330/1150/files/butyl_formate_nmr.pdf
    • https://cdn.shopify.com/s/files/1/0434/0783/5292/files/bellewaters_floor_plan.pdf
    • https://cdn.shopify.com/s/files/1/0435/9215/5293/files/large_print_word_search_puzzles.pdf
    • https://cdn.shopify.com/s/files/1/0448/4120/5917/files/11758529978.pdf
    • https://static.usrfiles.com/ugd/493135_fb7b9c6217004d6fb4609a2807345496.pdf
    • https://static.usrfiles.com/ugd/078c79_168aece3e2fb42d59cfdd7bbac3c365c.pdf
    • https://static.usrfiles.com/ugd/0789d5_0dde53f195a54bbb949314cad7b717e8.pdf
    • https://static.usrfiles.com/ugd/ac51ce_4abb1144918a47a48a2742b531b394a7.pdf
    • https://static.usrfiles.com/ugd/b8c837_ba607913a8904a358d37d38dc01a3227.pdf
    • https://static.usrfiles.com/ugd/0d2908_8ca70bdc43ab4a1c91d140e24935ded6.pdf
    • https://static.usrfiles.com/ugd/0aab01_246c9a563aa54b679f187f8c19b99edd.pdf
    • https://static.usrfiles.com/ugd/2e4eb4_e40760ffba3a4a268c572388aa5a20e8.pdf
    • https://static.usrfiles.com/ugd/b8c837_6d928d30a28b4f8c87529791b03cfff4.pdf
    • https://static.usrfiles.com/ugd/b8c837_ae2353dbd8ff440390744f326616ca06.pdf
    • https://static.usrfiles.com/ugd/cac9e4_d002b3d732c34b4eaa601d8a57fe356d.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/
    • https://static.usrfiles.com/ugd/0789d5_0dde53f195a54bbb949314cad7b717e8.p

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070e1.bin
5ed29947382667f57382144e087e4a03497a4eb0c8c9d4ca67c86ec46a0c2484
pdf-font-stream PDF embedded font (sfnt) at offset 0x70E1 5148 bytes
font_01_sfnt_off00008265.bin
0fee1f5dbfb63e37f456320bc0f6acd1ec05b55f96417cd6b795d844b8d8793e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8265 12244 bytes