Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0e1a007b3a60df4…

MALICIOUS

PDF

50.8 KB Created: 2020-09-02 18:29:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a49d4fd73a52ac4d1b94404b9dca8381 SHA-1: 24263c48b6c73f61147d87a8ce77863b504fb078 SHA-256: b0e1a007b3a60df47a41ecf10b503a297050d45a10f93ae00878ec8c321f66b6
150 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is disguised with a search query for a funeral order of service template. This indicates a social engineering attempt to trick the user into visiting a malicious site. The PDF also hosts a large number of external links, many pointing to Shopify, suggesting a link farm for SEO manipulation or to obscure the final malicious destination. The ML classifier strongly flagged this PDF as malicious.

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.ru/wix?keyword=funeral+order+of+service+template++free
    • https://cdn.shopify.com/s/files/1/0446/9918/9402/files/journal_el_watan_du_jour.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/baludugosutagaxoreforodul.pdf
    • https://cdn.shopify.com/s/files/1/0437/1218/4474/files/15911483549.pdf
    • https://cdn.shopify.com/s/files/1/0429/1674/1286/files/18310821654.pdf
    • https://cdn.shopify.com/s/files/1/0433/3548/3551/files/35738097977.pdf
    • https://cdn.shopify.com/s/files/1/0429/0255/2742/files/blown_away_carrie_underwood_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0435/0722/0635/files/28789818398.pdf
    • https://static.usrfiles.com/ugd/b8c837_3849cf880a9d411e869eb4303ccdca74.pdf
    • https://static.usrfiles.com/ugd/b4a829_9aba1985e82c4cddaaf3f170005796f4.pdf
    • https://static.usrfiles.com/ugd/c7a620_7ebff66f88904b10a3f21d5ba9364725.pdf
    • https://static.usrfiles.com/ugd/45fd81_9d92711da2ab4996aefa0d28c08fa664.pdf
    • https://static.usrfiles.com/ugd/cdfdba_47382b415721409f8acd15809996ff46.pdf
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/nifepotijozinisidim.pdf
    • https://cdn.shopify.com/s/files/1/0433/4324/9576/files/la_boite_a_merveille_tout_le_roman.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/1/0428/9835/8432/files/baludugosutagaxoreforod

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000088fd.bin
323be34157c359c203a277116053d91eb43b1986a77a821d30f448baaf8bd556
pdf-font-stream PDF embedded font (sfnt) at offset 0x88FD 5316 bytes
font_01_sfnt_off00009b0a.bin
6167d505078d4354fd90bbe746794818e96db3fea045b84dbdf073b50e823508
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B0A 10244 bytes