Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf090fc78d6a0205…

MALICIOUS

PDF

52.6 KB Created: 2020-08-26 10:47:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58243301ad25352c29c4596687b78614 SHA-1: d1838f86c3d6fb74a7b0e80f03efdabe333a0a01 SHA-256: bf090fc78d6a0205f34240676a7b0f3e4f8b1ef062c1c8042d3d25ca4bf208d0
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, 'https://ttraff.club/pify?keyword=matthaus+pes+stats'. Another heuristic flagged the document as a link farm, with numerous links to files hosted on cdn.shopify.com and other domains. The document body itself contains garbled text but also includes the malicious redirector URL and several benign-looking file URLs, suggesting a deceptive lure.

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.club/pify?keyword=matthaus+pes+stats
    • http://files.jenniferrosengarten.com/uploads/1/3/2/6/132695932/fixuxagikap-rixuxubopek.pdf
    • http://maxafiv.craftedtokeep.com/uploads/1/3/2/6/132696398/f9393ce22fd.pdf
    • http://dokow.exquisitekreations.com/uploads/1/3/0/7/130739048/vibevi.pdf
    • http://nevumezi.alphahcconsulting.com/uploads/1/3/1/3/131383478/7395348.pdf
    • https://cdn.shopify.com/s/files/1/0440/4002/8325/files/minions_full_movie_with_english_subtitles.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3269/files/wojelut.pdf
    • https://cdn.shopify.com/s/files/1/0437/8332/3806/files/le_bourgeois_gentilhomme_acte_1.pdf
    • https://cdn.shopify.com/s/files/1/0432/8944/4510/files/32219670124.pdf
    • https://cdn.shopify.com/s/files/1/0434/6953/7432/files/lejejesef.pdf
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/mivita.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tinoled.pdf
    • https://cdn.shopify.com/s/files/1/0432/7807/4020/files/fexevinanirapaperofifam.pdf
    • https://cdn.shopify.com/s/files/1/0438/3752/2085/files/kubakubitebel.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/amortizacion_financiera.pdf
    • https://cdn.shopify.com/s/files/1/0428/8335/0687/files/nebufifopenazevojawen.pdf
    • https://cdn.shopify.com/s/files/1/0462/6907/1511/files/novufunemelewevu.pdf
    • https://cdn.shopify.com/s/files/1/0437/5799/4138/files/migigixusejuvidokos.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_off00008bf3.bin
c6623feb4fb96562372eb4d460a2ca95002e432aa66c35307ee4bc9fa41b07bf
pdf-font-stream PDF embedded font (sfnt) at offset 0x8BF3 4784 bytes
font_01_sfnt_off00009c3e.bin
badb7482a735b870105c02090ea6b8ac298c57f35a550fcb07afecd8096d3757
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C3E 12672 bytes