Malicious PDF — malware analysis report

Static analysis result for SHA-256 df2c0762da140056…

MALICIOUS

PDF

42.0 KB Created: 2020-08-22 11:26:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84d72cc540c396fd358de2213c4b78b2 SHA-1: c816389fb051dfba55e068d3b113212750ac0ded SHA-256: df2c0762da1400561b3b99f8318a0a0685eaf96951313af4494dc587f55daaf1
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a lure text 'Please find attached the information you requested' and embeds multiple links. One of these links, 'https://ttraff.ru/pify?keyword=please+find+attached+the+information+you+requested', is identified as a malicious redirector. The PDF also contains a large number of links to Shopify domains, suggesting a link farm for SEO manipulation or to host further malicious content. The presence of a malicious redirector indicates an attempt to deliver a second-stage payload.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=please+find+attached+the+information+you+requested
    • http://files.solutionsgurullc.com/uploads/1/3/2/6/132681409/9566294.pdf
    • http://files.cariboucafe.com/uploads/1/3/0/7/130775959/ludezamizuzagazu.pdf
    • https://cdn.shopify.com/s/files/1/0453/6093/9163/files/best_video_maker_software_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0431/5214/6587/files/xaxuxokemabosunopenu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5866/7430/files/dilakiwitalepomagofol.pdf
    • https://cdn.shopify.com/s/files/1/0440/6879/8614/files/zolevinonosutasajimiv.pdf
    • https://cdn.shopify.com/s/files/1/0433/2349/0457/files/36860914937.pdf
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/22265182950.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/11354071101.pdf
    • https://cdn.shopify.com/s/files/1/0448/3714/2689/files/amsden_formation_wyoming.pdf
    • https://cdn.shopify.com/s/files/1/0428/8184/3353/files/kerekusegurajodepugonove.pdf
    • https://cdn.shopify.com/s/files/1/0427/7947/6134/files/35908479244.pdf
    • https://cdn.shopify.com/s/files/1/0428/9154/2681/files/vosogilepef.pdf
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/introduction_to_classical_mechanics_david_morin.pdf
    • https://cdn.shopify.com/s/files/1/0429/3351/8489/files/ts_10th_class_biology_textbook_telugu_medium.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/
    • https://cdn.shopify.com/s/files/1

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064ac.bin
d19961657740d56083d0b27884a18e40b4098299516e5dd081f9a4b77b92b0d2
pdf-font-stream PDF embedded font (sfnt) at offset 0x64AC 5488 bytes
font_01_sfnt_off00007722.bin
cf5ca1bd4a9b5f64bba062afed4bf68e068ad9bc97730e55e57d8b35224dd50d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7722 10308 bytes