Malicious PDF — malware analysis report

Static analysis result for SHA-256 28e1ba0e28c7acd2…

MALICIOUS

PDF

56.0 KB Created: 2020-08-14 14:20:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5cb5eed153f684d7c0ec132ff9299b9f SHA-1: fe67bb6e33636f63243d58aa9b9f42ce1195fe90 SHA-256: 28e1ba0e28c7acd251b792196edf20c5699c97443c0e83cabeabb74701c678cb
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is also present in the document body. This indicates the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing.

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/pify?keyword=eso+lore+book+guide+ps4
    • http://lusotijo.sandstonecontracting.com/uploads/1/3/0/7/130776330/lasewebedosutod.pdf
    • http://ritilon.brindleemountainanimalrescue.com/uploads/1/3/2/7/132741194/37df387250.pdf
    • http://zuzexi.barry3d.com/uploads/1/3/0/8/130814328/jiseguluduzokoma.pdf
    • https://cdn.shopify.com/s/files/1/0429/9853/0202/files/40345674398.pdf
    • https://cdn.shopify.com/s/files/1/0431/1587/2423/files/jakudopatumokojaledigaze.pdf
    • https://cdn.shopify.com/s/files/1/0438/9522/6523/files/gezesuxurad.pdf
    • https://cdn.shopify.com/s/files/1/0437/6533/4165/files/61409692160.pdf
    • https://cdn.shopify.com/s/files/1/0435/8832/1438/files/fajibusuxikuvonin.pdf
    • https://cdn.shopify.com/s/files/1/0441/3535/0424/files/citizen_eco_drive_manual_e650.pdf
    • https://cdn.shopify.com/s/files/1/0434/6436/0100/files/92644070792.pdf
    • https://cdn.shopify.com/s/files/1/0433/7962/2040/files/campbell_8th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0434/9739/0244/files/kewebebatukeruzofago.pdf
    • https://cdn.shopify.com/s/files/1/0429/1205/5463/files/85845231904.pdf
    • https://cdn.shopify.com/s/files/1/0430/0662/3903/files/53321635587.pdf
    • https://cdn.shopify.com/s/files/1/0431/3219/0876/files/robajizonipatazubojarebo.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_off0000912e.bin
f8bc629bdbd865445593f03a0a50b7b92608d1ac039e205c75275e7ae99129b7
pdf-font-stream PDF embedded font (sfnt) at offset 0x912E 5164 bytes
font_01_sfnt_off0000a2d5.bin
8a332aa56cb433400c05e0179e36ea4b43f75d3b5a32201f600f10ac07c2f5f8
pdf-font-stream PDF embedded font (sfnt) at offset 0xA2D5 15636 bytes