Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbaa2d0664ff0da7…

MALICIOUS

PDF

43.1 KB Created: 2020-08-01 04:33:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f6779bc642f204374143025d8df763e SHA-1: 6de16689a9d54d870a35c8fcebd24510734c1340 SHA-256: dbaa2d0664ff0da71508e3cb51d0a6c1f5ed0af65d06a2c67f652aee1d2b8e57
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to 'https://ttraff.com/pify?keyword=snoopdog+boss+life'. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a mass of external PDF links, with 'cdn.shopify.com' being a dominant host. The document body contains garbled text but includes the suspicious URL and several other PDF links. No scripts were extracted from this sample.

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=snoopdog+boss+life
    • http://files.hansingelangoe.com/uploads/1/3/2/6/132695832/2503cd.pdf
    • http://files.killforeden.com/uploads/1/3/1/4/131437513/numepuzakinolevok.pdf
    • http://files.feideartha-hypno-practice.com/uploads/1/3/2/6/132682990/zifigom.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/76716662797.pdf
    • https://cdn.shopify.com/s/files/1/0429/9925/1097/files/application_for_an_australian_passport_overseas_pc8_form_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/zulelaxodubasa.pdf
    • https://cdn.shopify.com/s/files/1/0434/5433/3093/files/karitu.pdf
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/86205044857.pdf
    • https://cdn.shopify.com/s/files/1/0435/6617/0271/files/dekopovifuk.pdf
    • https://cdn.shopify.com/s/files/1/0431/6348/4315/files/kogimuwanuzures.pdf
    • https://cdn.shopify.com/s/files/1/0434/4836/9309/files/waruf.pdf
    • https://cdn.shopify.com/s/files/1/0434/7474/7558/files/35714929966.pdf
    • https://cdn.shopify.com/s/files/1/0440/0313/1542/files/widaku.pdf
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/13251960083.pdf
    • https://cdn.shopify.com/s/files/1/0432/7522/3200/files/30703360999.pdf
    • https://cdn.shopify.com/s/files/1/0432/9367/1588/files/64312268021.pdf
    • https://cdn.shopify.com/s/files/1/0433/4911/5029/files/kipugasujat.pdf
    • https://cdn.shopify.com/s/files/1/0430/9683/4212/files/20839047140.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_off00006a40.bin
95cbb2c695e54e2cf9fa2e3d2e917e057a4f11eeffd9c7cb81448fba346c7c19
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A40 5144 bytes
font_01_sfnt_off00007bd0.bin
4d840da433afb7fcaf7d1cbf92460aeecce2db28ce47e77b07f464c6d095de9f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BD0 10500 bytes