Malicious PDF — malware analysis report

Static analysis result for SHA-256 92565fc8c234c788…

MALICIOUS

PDF

52.2 KB Created: 2020-08-11 21:45:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b111e664bace3b33fbabc5b747845ec8 SHA-1: 7658225b47859abbb8be78050f29f5a55a794a05 SHA-256: 92565fc8c234c788c72e2d876f66eee9c5be3cd3f05c86a87438a08f4b8141c5
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure related to a "Kitchenaid professional 5 plus repair manual" and embeds a significant number of external links. One of these links, ttraff.com, is identified as a malicious redirector. The presence of numerous links, many pointing to Shopify-hosted PDFs, suggests a link farm or SEO manipulation tactic, potentially to obscure malicious activity or distribute further malware. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wb?keyword=kitchenaid%20professional%205%20plus%20repair%20manual
    • http://files.tottenfamilyfarm.com/uploads/1/3/1/6/131606268/pafixiben-jaselozi-gonenugiwese.pdf
    • http://files.karigraydesigns.com/uploads/1/3/2/7/132712558/pirexadeb_gojujazo_bezuloxeb_viluvoxaboveb.pdf
    • http://files.5ivecoffee.com/uploads/1/3/0/7/130775063/ea96e7b6.pdf
    • http://files.genjipedia.com/uploads/1/3/1/4/131453522/15908c51.pdf
    • https://cdn.shopify.com/s/files/1/0432/6329/5654/files/dukesupojokimagamurexodab.pdf
    • https://cdn.shopify.com/s/files/1/0431/8714/2818/files/vabavitepetigozesunagituv.pdf
    • https://cdn.shopify.com/s/files/1/0439/2134/2619/files/mississippi_driver_s_permit_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/6727/7469/files/54302819129.pdf
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/golanifemujim.pdf
    • https://cdn.shopify.com/s/files/1/0428/5559/6198/files/fofibawumuvejeluxeseneva.pdf
    • https://cdn.shopify.com/s/files/1/0433/9138/5758/files/jogipo.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/kekixugisolibumajupa.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7414/files/wupatizavabinotu.pdf
    • https://cdn.shopify.com/s/files/1/0432/4642/0136/files/14864804225.pdf
    • https://cdn.shopify.com/s/files/1/0438/6576/8096/files/30789805473.pdf
    • https://cdn.shopify.com/s/files/1/0434/7723/7913/files/pirite.pdf
    • https://cdn.shopify.com/s/files/1/0431/4536/3610/files/37972653098.pdf
    • https://cdn.shopify.com/s/files/1/0444/2842/7431/files/austrian_embassy_visa_application_form.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_off00008cc2.bin
257746789aa3d65952b54f789d11d17711a9f981935ce2695ec185aa5cb8ade7
pdf-font-stream PDF embedded font (sfnt) at offset 0x8CC2 5488 bytes
font_01_sfnt_off00009f3a.bin
cfa8f3032e4c385eb28bc033bddfb155b5d817c5e3f0109423055f5846f485f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9F3A 10668 bytes