Malicious PDF — malware analysis report

Static analysis result for SHA-256 9938759875da5d0b…

MALICIOUS

PDF

50.0 KB Created: 2020-08-14 23:05:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4be6797aaa5c5b2ba3ea2e4c4feb2858 SHA-1: 02c0fde87d54961275f43100fdca429d18f5c3b0 SHA-256: 9938759875da5d0be7968e64d0efd846f295d64c6911378aaa036f1bffdb8bc1
128 Risk Score

Malware Insights

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

The PDF file contains embedded JavaScript and a critical heuristic firing for a malicious redirector link. The document body and numerous extracted URLs indicate a link farm strategy, likely intended to redirect users to malicious content or for SEO manipulation. The primary malicious URL identified is https://ttraff.cc/pify?keyword=hollywood+reporter+roundtable+actresses+2018.

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=hollywood+reporter+roundtable+actresses+2018
    • http://files.johnvukusic.com/uploads/1/3/1/3/131380031/c3ab01de1d6896.pdf
    • http://xomofapa.broadwaysphotostudio.com/uploads/1/3/1/8/131856330/bejowivazaw.pdf
    • http://files.ecofriendly-yes.com/uploads/1/3/1/4/131406506/4493312.pdf
    • https://cdn.shopify.com/s/files/1/0429/7120/1699/files/zokejurogobumoboretav.pdf
    • https://cdn.shopify.com/s/files/1/0435/4532/9832/files/razafunivanufovigamamer.pdf
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/8706825902.pdf
    • https://cdn.shopify.com/s/files/1/0435/7026/6273/files/1630771114.pdf
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/tipos_de_auditoria_administrativa.pdf
    • https://cdn.shopify.com/s/files/1/0429/9377/8837/files/vobirok.pdf
    • https://cdn.shopify.com/s/files/1/0431/5149/1236/files/wiranosukovazaritewu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9385/9231/files/advantages_and_disadvantage_of_internet.pdf
    • https://cdn.shopify.com/s/files/1/0427/6423/9014/files/architectural_thesis_projects.pdf
    • https://cdn.shopify.com/s/files/1/0432/9360/6048/files/que_es_diversidad_genetica.pdf
    • https://cdn.shopify.com/s/files/1/0436/4127/4521/files/undertale_map_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0435/2117/9802/files/puwutaxafafinufubati.pdf
    • https://cdn.shopify.com/s/files/1/0436/4507/5609/files/means_building_construction_cost_data.pdf
    • https://cdn.shopify.com/s/files/1/0434/2402/2677/files/cabala_esoterica.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_off0000832d.bin
541627367a209282714c3d4fc251ad846f7df61150b40066063995cd6f1f0b29
pdf-font-stream PDF embedded font (sfnt) at offset 0x832D 5884 bytes
font_01_sfnt_off0000974d.bin
a96ff321bffc4509e9d6fb0976eb68801645d6c9afcec3a1d89ba7ce820ea1aa
pdf-font-stream PDF embedded font (sfnt) at offset 0x974D 10240 bytes