Malicious PDF — malware analysis report

Static analysis result for SHA-256 bca1491f3b52b6fb…

MALICIOUS

PDF

45.0 KB Created: 2020-09-07 08:49:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e3ea26c7b4e89db73e6776f8c34cdaa6 SHA-1: b421dcb3c430d7ba4c0435446e54b6591519d56a SHA-256: bca1491f3b52b6fb722e8a0bb056946b1c34866d6b2e4a5db9269e76f491d35d
130 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.me, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains text related to 'collision reporting centre guelph hours' and includes the malicious URL, suggesting a phishing or scam attempt. The PDF also contains a large number of external links, many pointing to static.usrfiles.com, which is flagged as a link farm. The presence of a malicious redirector and the link farm indicate a coordinated effort to distribute malicious content.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=collision+reporting+centre+guelph+hours
    • https://static.usrfiles.com/ugd/185811_1190a998c2684e959e80621246f22c07.pdf
    • https://static.usrfiles.com/ugd/daca0d_b1ca9dd4abd94faeac1de5069cecd933.pdf
    • https://static.usrfiles.com/ugd/61f964_c7680a279ba3426d8a6465069021cdca.pdf
    • https://static.usrfiles.com/ugd/374ce0_53760700f45d466dbf3fb5a8cbd57d35.pdf
    • https://static.usrfiles.com/ugd/b444d4_f0c3458ed2cb4fea955493e2ee6d3600.pdf
    • https://static.usrfiles.com/ugd/ff3115_74126b9b0291482aa440adfba6773872.pdf
    • https://static.usrfiles.com/ugd/2ca09c_359e5c7143f64f6f9360b227e801ebb3.pdf
    • https://static.usrfiles.com/ugd/b8c837_c17d130facb3441690e2030855741e61.pdf
    • https://static.usrfiles.com/ugd/866690_8cc301a5286541d5a3631870eea7355e.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/how_to_appcake_without_jailbreak.pdf
    • https://cdn.shopify.com/s/files/1/0428/4963/2412/files/44748959881.pdf
    • https://cdn.shopify.com/s/files/1/0434/7327/2998/files/49751121013.pdf
    • https://cdn.shopify.com/s/files/1/0433/7149/5574/files/remove_blank_page_from_file.pdf
    • https://cdn.shopify.com/s/files/1/0429/6281/3084/files/suniwalavifidegoti.pdf
    • https://cdn.shopify.com/s/files/1/0437/5419/3047/files/9193664546.pdf
    • https://cdn.shopify.com/s/files/1/0432/7279/8373/files/77072078294.pdf
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/campbell_biology_9th_edition.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_off0000734e.bin
3e6b4690f6c734481d2d3160c65ac0ceb883d65648e62e67f60bdaa5a702ee77
pdf-font-stream PDF embedded font (sfnt) at offset 0x734E 4892 bytes
font_01_sfnt_off000083f0.bin
401c489c3e981391d8d10f08c4d770f1d6887e3d18f92133af09d860cdf26813
pdf-font-stream PDF embedded font (sfnt) at offset 0x83F0 10136 bytes