Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fd18d2f1e367c3e…

MALICIOUS

PDF

33.8 KB Created: 2020-08-02 20:06:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ab244e263f63b4958e14ef8a27a7f29 SHA-1: 68fed6627efc6805d033ae49486df9fea0bdbd52 SHA-256: 9fd18d2f1e367c3ec42447f847ac247a845be31225910e71b0008ad1e2fa7f8e
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is designed to lure users with a 'tcf online banking' keyword. Additionally, a PDF link farm heuristic indicates the presence of numerous external links, with one pointing to a Shopify domain. The document body contains obfuscated text and the URL 'https://ttraff.com/pify?keyword=tcf+online+banking', suggesting a phishing or redirection 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.com/pify?keyword=tcf+online+banking
    • http://files.destinwestvacation.com/uploads/1/3/0/7/130776712/8330495.pdf
    • http://files.mexicolegalhelp.com/uploads/1/3/2/6/132682134/timulapafaji.pdf
    • http://files.rimrockmanagement.biz/uploads/1/3/1/0/131070894/bunoxujikedot.pdf
    • http://files.gittco.com/uploads/1/3/1/6/131606631/bewazewodixek-lanova-jekaxawotum.pdf
    • http://files.karengilchrist.com/uploads/1/3/0/7/130775200/rikekexubefozama.pdf
    • https://cdn.shopify.com/s/files/1/0431/1567/5815/files/wevamuwanu.pdf
    • https://cdn.shopify.com/s/files/1/0438/3545/7696/files/67492042603.pdf
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/pevivu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9374/5046/files/bowepasowikutamijev.pdf
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/tazetetiwiwasevegunaj.pdf
    • https://cdn.shopify.com/s/files/1/0429/5688/2086/files/85988867951.pdf
    • https://cdn.shopify.com/s/files/1/0431/4749/3536/files/73827878295.pdf
    • https://cdn.shopify.com/s/files/1/0438/3378/6525/files/66774497198.pdf
    • https://cdn.shopify.com/s/files/1/0429/5009/9107/files/27585163786.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lamafavikunidamekisuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/7849/2072/files/zevogokowubu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3137/9618/files/sazarusoguwufe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5214/6586/files/56168028804.pdf
    • https://cdn.shopify.com/s/files/1/0428/7892/7014/files/fofufegumozedijutusogoga.pdf
    • https://cdn.shopify.com/s/files/1/0430/0144/6554/files/rikikegitimagetapowiruw.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_off00004a68.bin
039c5bd7c21ee7438faf84dec0ca73d0978b44eea1eaf13fc9221bd44f52d71e
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A68 4928 bytes
font_01_sfnt_off00005b4f.bin
6155eb02b8297859f4837bd9622f1f8413c852507bd99092a2304ea723b261cd
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B4F 9088 bytes