Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9bf3c2073793a1c…

MALICIOUS

PDF

38.2 KB Created: 2020-08-25 02:22:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cfc86656b003b2baf3e984b5962b832e SHA-1: 18b33c67f3e885d23d272cd288b503292b568f66 SHA-256: d9bf3c2073793a1c86b3d3918c53ef701ad7acf38a93209fc8eb11ff37dfa982
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.ru'. This URL is presented within the document body, likely disguised as a download button, to trick users into clicking it. The PDF also hosts a large number of external links, many pointing to Shopify domains, suggesting a link farm for SEO manipulation or traffic redirection.

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.ru/pify?keyword=zombie+catchers+apk+para+hilesi
    • http://kamox.redflagpoetry.com/uploads/1/3/0/7/130738638/0b10009c24ac.pdf
    • http://files.livingmorefully.com/uploads/1/3/2/7/132740552/b2e09199100fd.pdf
    • http://woruzek.bymarywong.com/uploads/1/3/1/0/131070872/vavovefojar-zirexabelajose.pdf
    • http://xubapiki.youtrition.co.uk/uploads/1/3/0/7/130776007/36caa85c.pdf
    • http://files.lakewass.com/uploads/1/3/1/3/131384721/c9d256364.pdf
    • https://cdn.shopify.com/s/files/1/0438/7491/0376/files/55437066598.pdf
    • https://cdn.shopify.com/s/files/1/0433/9436/7644/files/asean_integration_philippines.pdf
    • https://cdn.shopify.com/s/files/1/0436/3943/9510/files/wopurenetese.pdf
    • https://cdn.shopify.com/s/files/1/0430/3077/3913/files/79830293789.pdf
    • https://cdn.shopify.com/s/files/1/0447/1137/9097/files/diabetic_amyotrophy_treatment.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/womosoravitixugefiwil.pdf
    • https://cdn.shopify.com/s/files/1/0435/1298/7802/files/79186575772.pdf
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/fagavawisili.pdf
    • https://cdn.shopify.com/s/files/1/0433/8352/1445/files/40355769122.pdf
    • https://cdn.shopify.com/s/files/1/0430/7520/7322/files/rikadazukezudamozigi.pdf
    • https://cdn.shopify.com/s/files/1/0440/8596/9046/files/new_mercedes_a_class_brochure_2020.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_off000057f8.bin
3cec2da36dcaedf6e6ba8e8c6dc5bbc233ad05f37d24c58555cb69a77eaa3f86
pdf-font-stream PDF embedded font (sfnt) at offset 0x57F8 5336 bytes
font_01_sfnt_off000069f6.bin
2f20833f1b2f36321acf09c7c726b3e442fafa39ebefc3f9143af82e8e59401e
pdf-font-stream PDF embedded font (sfnt) at offset 0x69F6 9936 bytes