Malicious PDF — malware analysis report

Static analysis result for SHA-256 deae95c96d2bc781…

MALICIOUS

PDF

47.5 KB Created: 2020-09-01 01:07:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 716b99afa89dc9de0c6a989a1c82aa52 SHA-1: f941487ad5637cf05cace582f9180fbce4c40fe3 SHA-256: deae95c96d2bc781c9d98d474f0bd731db3021c2d0ee7701c31f8606f2418832
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is disguised as an online application form. The document body also contains numerous links to external PDFs hosted on Shopify, likely as part of a link farm to improve SEO for the malicious redirector. No scripts were extracted, but the primary attack vector is the malicious URL embedded within the document.

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=online+application+form+for+nsfas+2018
    • https://cdn.shopify.com/s/files/1/0431/6325/4944/files/jokewusakumoduvuxuwuxas.pdf
    • https://cdn.shopify.com/s/files/1/0431/9664/5536/files/access_inventory_database_template_2010.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/19194700937.pdf
    • https://cdn.shopify.com/s/files/1/0432/5782/3390/files/1st_person_2nd_person_3rd_person.pdf
    • https://cdn.shopify.com/s/files/1/0428/1407/9143/files/23028072215.pdf
    • https://cdn.shopify.com/s/files/1/0430/1019/5605/files/zewipexexabedupevipozuz.pdf
    • https://cdn.shopify.com/s/files/1/0434/2756/1634/files/98023949513.pdf
    • https://cdn.shopify.com/s/files/1/0428/6503/3383/files/nobeponovo.pdf
    • https://cdn.shopify.com/s/files/1/0430/4509/3533/files/58619867669.pdf
    • https://static.usrfiles.com/ugd/b8c837_b5a9a028e0b644cd8d98e93a5652333a.pdf
    • https://static.usrfiles.com/ugd/b8c837_811a76de6e2a46d895548fab17035b52.pdf
    • https://static.usrfiles.com/ugd/b8c837_d76afc95570843bbb83e292015836584.pdf
    • https://static.usrfiles.com/ugd/6924eb_87631324e4274965a7e4987ffb5734c9.pdf
    • https://cdn.shopify.com/s/files/1/0428/4094/8892/files/wolowuwaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3074/files/zujokisesamifu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4316/8156/files/49482353546.pdf
    • https://cdn.shopify.com/s/files/1/0440/2289/0646/files/plotting_coordinates_on_a_map_worksheet.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_off0000676e.bin
e12da2af74471b0e3704523e62117f82f9e4ca17093de0f4a675fa7d3726dffc
pdf-font-stream PDF embedded font (sfnt) at offset 0x676E 5708 bytes
font_01_sfnt_off00007aba.bin
77e069fb2f2125192b130665d1c95460892d89a9170ecfa8b62641b2ecafb1e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABA 7004 bytes
font_02_sfnt_off00008d40.bin
004f7d5a268e066f5e134653cfbccd0c0c8f4de4148d6041c4be133f49c71081
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D40 10304 bytes