Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5dd2c30eb7971eb…

MALICIOUS

PDF

104.3 KB Created: 2020-08-15 02:49:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 426ea564184a21243fd195c83ace850c SHA-1: 70efac17bbbbc966d9547fb9e4224a0302461825 SHA-256: c5dd2c30eb7971eb36aab699f8b241e252f0dba952f620021a643c26ef536dc0
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=biological+product+deviation+report+guidance'. This URL is presented within the document body, suggesting a social engineering lure to trick the user into clicking it. The file also exhibits a PDF link farm heuristic, indicating a large number of outbound links, with 'https://cdn.shopify.com/s/files/1/0433/5560/3094/files/dugipaf.pdf' being the first identified. The primary intent appears to be redirecting the user to malicious infrastructure.

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=biological+product+deviation+report+guidance
    • http://pewep.showstoppersshowchoircamp.com/uploads/1/3/2/3/132303093/pigide.pdf
    • http://files.laceyfisherlpc.com/uploads/1/3/0/8/130814935/zerupele.pdf
    • http://files.blushbrushandbronze.com/uploads/1/3/1/3/131380000/dexatasotulewegakok.pdf
    • http://files.fullyfusedcrafts.co.uk/uploads/1/3/1/4/131409009/767786.pdf
    • http://files.lisa--hall.co.uk/uploads/1/3/2/7/132710700/9a26a0b198ae.pdf
    • https://cdn.shopify.com/s/files/1/0433/5560/3094/files/dugipaf.pdf
    • https://cdn.shopify.com/s/files/1/0436/6244/2646/files/happy_birthday_fonts_calligraphy_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/zebobunemuvuxutuzig.pdf
    • https://cdn.shopify.com/s/files/1/0435/7872/0414/files/dokijupugetosewe.pdf
    • https://cdn.shopify.com/s/files/1/0431/8376/7713/files/wonuvanoj.pdf
    • https://cdn.shopify.com/s/files/1/0428/8380/9439/files/nofukakisirap.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pegumi.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/gesizazodisifuwukazas.pdf
    • https://cdn.shopify.com/s/files/1/0433/3672/8744/files/36350874633.pdf
    • https://cdn.shopify.com/s/files/1/0433/2044/3045/files/dilinoj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejukimuvili.pdf
    • https://cdn.shopify.com/s/files/1/0447/4827/5863/files/leaders_are_born_and_not_made.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_off00015d41.bin
4687a6e16920ca3402e2e600dd1965f187ac81cd3529cc28741c3b8536c23761
pdf-font-stream PDF embedded font (sfnt) at offset 0x15D41 5172 bytes
font_01_sfnt_off00016ee8.bin
493aa6b8020b07090a07722773075947b49a7d25e48bdba7530d5f64d7615853
pdf-font-stream PDF embedded font (sfnt) at offset 0x16EE8 10616 bytes