Malicious PDF — malware analysis report

Static analysis result for SHA-256 210fe85604c08e92…

MALICIOUS

PDF

39.0 KB Created: 2020-09-09 18:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95bec5e94791927eb8be8a174df26468 SHA-1: b48f92db4cbdf9de34f6cdb911aaaddd7bfbf7b1 SHA-256: 210fe85604c08e924f66dc76d003a7b109e59c4c92726ac1afe74923163c9169
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or SEO poisoning attempt. One prominent link, 'https://ttraff.me/pify?keyword=bwv+999+guitar+pdf', redirects to malicious infrastructure. The document body, though heavily obfuscated, contains similar URLs and the text 'Bwv 999 guitar pdf', reinforcing the lure. The presence of a malicious redirector link indicates a phishing or malware distribution attempt.

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.me/pify?keyword=bwv+999+guitar+pdf
    • http://files.wagsthedog.org/uploads/1/3/0/7/130775665/5196758.pdf
    • http://files.shootlikeagirlllc.com/uploads/1/3/2/8/132815054/49bd958ba4.pdf
    • http://bixerof.naonsandiego.com/uploads/1/3/1/4/131453870/bumivuje.pdf
    • http://vimovijer.michellemacinnis.com/uploads/1/3/0/7/130775413/votitifenazuges_rabuf.pdf
    • http://files.lifeoutloudpodcast.com/uploads/1/3/2/6/132696351/7029073.pdf
    • https://static.usrfiles.com/ugd/a474dd_bd237e81da3a4ea3af2fecb7d5776efe.pdf
    • https://static.usrfiles.com/ugd/20d83a_c16be69c9beb47ce9e0c750242f932ff.pdf
    • https://static.usrfiles.com/ugd/8ba634_2a8166d0457e4fca87756ff46d08fbda.pdf
    • https://static.usrfiles.com/ugd/6908d7_6572483a8dec47eab9533c1cd6051b63.pdf
    • https://static.usrfiles.com/ugd/7820d0_670990261d694488a9674acc18f92351.pdf
    • https://static.usrfiles.com/ugd/b97cba_78bcb0e53c124913a22998d87dc03848.pdf
    • https://static.usrfiles.com/ugd/b8c837_2ac059802fc34f08872ac0a45fc587c4.pdf
    • https://static.usrfiles.com/ugd/79cb75_d6e3d7392f09440084bfa38aa543781b.pdf
    • https://static.usrfiles.com/ugd/e78b77_8a04aed8ec3a41f5bb8c8e3f99c4ee6a.pdf
    • https://static.usrfiles.com/ugd/b8c837_6269df8c38474704b9020af4bb0b4d61.pdf
    • https://cdn.shopify.com/s/files/1/0433/9626/8193/files/javascript_code_formatting_rules.pdf
    • https://cdn.shopify.com/s/files/1/0431/3487/7850/files/suddenlink_channel_guide_kingwood_tx.pdf
    • https://cdn.shopify.com/s/files/1/0435/7813/0593/files/jimubolowuvodizirekex.pdf
    • https://cdn.shopify.com/s/files/1/0427/4143/2487/files/vunaku.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_off000059b6.bin
f6a01640d008875db132928f9d5f17c6dc9055ab5f51b863590d065f97dfe5a8
pdf-font-stream PDF embedded font (sfnt) at offset 0x59B6 5356 bytes
font_01_sfnt_off00006c25.bin
a912f9aaf20c185f1e5bd3684fb2f974fc7f4115d09556d41d111e86ec9fc355
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C25 10320 bytes