Malicious PDF — malware analysis report

Static analysis result for SHA-256 91cabc72323ed552…

MALICIOUS

PDF

36.7 KB Created: 2020-08-20 20:12:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a56e8eb69d2211cca22febf030257dcd SHA-1: cd677ae77f5661914e05d32eb45af460d4f50aa0 SHA-256: 91cabc72323ed552c28b78d01f52c3f7a4e94d62a1677ca0287df06ef13097ed
128 Risk Score

Malware Insights

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

The PDF file contains a lure for a Netflix Android app download, which is a common social engineering tactic. It embeds a link to a redirector service, ttraff.cc, which is flagged as malicious. The file also contains a large number of links to other PDFs hosted on Shopify, suggesting a link farm for SEO manipulation or to obscure the malicious redirector. The presence of a visual download button further supports the social engineering pretext.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.cc/pify?keyword=netflix+para+android+4.+1.+2
    • http://files.sghwoodturning.com/uploads/1/3/1/8/131856039/sijuponebose_beketeloloxoti_wuzoneva.pdf
    • http://files.stmarks-benson.com/uploads/1/3/1/6/131636866/7e15335.pdf
    • https://cdn.shopify.com/s/files/1/0431/5312/9640/files/wavaguz.pdf
    • https://cdn.shopify.com/s/files/1/0432/1515/9458/files/brush_lettering_practice_sheets_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/7513/2824/files/assassin_s_creed_origins_wiki_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/7142/2102/files/76351058819.pdf
    • https://cdn.shopify.com/s/files/1/0434/2248/2582/files/lobovafisilekege.pdf
    • https://cdn.shopify.com/s/files/1/0439/9392/3742/files/turoludotapisok.pdf
    • https://cdn.shopify.com/s/files/1/0431/2095/1450/files/32021391234.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/zadoduju.pdf
    • https://cdn.shopify.com/s/files/1/0431/3330/4993/files/99015024652.pdf
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/9922200253.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_off000052ab.bin
19a347d59b47ac30d7b2763f95305379290fa238ea369bcba0dcaa6eda7adc6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52AB 5196 bytes
font_01_sfnt_off0000647f.bin
f539b601a57246607c436fbc590caba0d2f0b87a9bab067b57d9105fdb4a9947		 pdf-font-stream PDF embedded font (sfnt) at offset 0x647F 9956 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.