Malicious PDF — malware analysis report

Static analysis result for SHA-256 93b8fa1e80044036…

MALICIOUS

PDF

42.1 KB Created: 2020-08-07 00:47:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a672b44db83faa4e5685351622fcf49 SHA-1: 50bd1eb44ee4fe7f04da90d349440e474f745b48 SHA-256: 93b8fa1e800440362530e3b4b9cf9e678fc04882b12ded7d3344a2ee1567dac4
128 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.cc'. This indicates an attempt to lead the user to a malicious site. Additionally, a PDF link farm heuristic fired, suggesting the document is part of a larger SEO manipulation effort to distribute malicious content. The presence of a 'download button' heuristic further supports the lure-based attack pattern. No scripts were extracted, but the embedded URLs and heuristics strongly suggest a phishing or redirection attack.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=beethoven+ode+to+joy+piano+pdf
    • http://baweju.latisserande.com/uploads/1/3/1/3/131379578/xisaw.pdf
    • http://files.bradentonfamilywellness.com/uploads/1/3/1/4/131455475/7611747.pdf
    • http://files.andyhargreaves.com/uploads/1/3/2/7/132740281/wonobupezelixozafu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nepel.pdf
    • https://cdn.shopify.com/s/files/1/0427/9857/9879/files/21801257950.pdf
    • https://cdn.shopify.com/s/files/1/0431/6987/4082/files/latawojid.pdf
    • https://cdn.shopify.com/s/files/1/0431/6246/8514/files/lelalaxovojanogu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9199/2481/files/70280792707.pdf
    • https://cdn.shopify.com/s/files/1/0430/9860/3669/files/bijixixewazapirevubo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3262/4808/files/5422687400.pdf
    • https://cdn.shopify.com/s/files/1/0429/8014/7359/files/53993016835.pdf
    • https://cdn.shopify.com/s/files/1/0432/4796/0232/files/norajixerana.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30547733638.pdf
    • https://cdn.shopify.com/s/files/1/0429/4914/8828/files/53154713602.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_off00005ad5.bin
b47f00fbc5b9736a89cadbadd7cc7956a8cf8f8fe4d18d68045ba83c6644a517
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD5 5112 bytes
font_01_sfnt_off00006c59.bin
71f0b1607993a6fc432674f76811defc069d88fc4920aef454ee92e8bfaec68c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C59 10088 bytes
font_02_sfnt_off00008f1f.bin
bb965ea0515e7499bb47638dd5c820c8824ea93d586ac0d8f4a8f758a0d32bc6
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F1F 3060 bytes