Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd074c0456e0409d…

MALICIOUS

PDF

40.8 KB Created: 2020-09-01 11:20:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce3659f92077c12c022b93eae383de4e SHA-1: 8a9a0d00a537eb9f14458d6ce91acde7b8aa26c7 SHA-256: cd074c0456e0409dd755a031d1ee46749595987537da2c04e2b546e8848c243e
148 Risk Score

Malware Insights

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

The PDF contains a link that redirects to known malicious infrastructure, disguised with a keyword relevant to professional registration. The document also exhibits characteristics of a link farm, with numerous external PDF links, and includes a call-to-action phrase and a callback lure, suggesting a phishing or scam attempt. The primary malicious URL identified is https://ttraff.link/wix?keyword=ahpra+nursing+registration+requirements+pdf.

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.link/wix?keyword=ahpra+nursing+registration+requirements+pdf
    • https://cdn.shopify.com/s/files/1/0431/6112/5013/files/pukujimezunit.pdf
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/five_steps_to_risk_assessment_hse.pdf
    • https://cdn.shopify.com/s/files/1/0427/8507/9452/files/28516108651.pdf
    • https://static.usrfiles.com/ugd/b8c837_6b1e24127d5c4175b889c175a960c520.pdf
    • https://static.usrfiles.com/ugd/b9801a_fa0ba50e73074971b7b9111cede09248.pdf
    • https://static.usrfiles.com/ugd/43d598_2d7e9d063cfa4f008bb73d592c7e0926.pdf
    • https://static.usrfiles.com/ugd/cf79db_8a30dad2652d473b9453b7b4ece96bec.pdf
    • https://static.usrfiles.com/ugd/09273f_5fe10efb9b584acc9b63dc1aedf5ff37.pdf
    • https://static.usrfiles.com/ugd/b9801a_a0243c3b6a4f4eb1b1b244a8137351ea.pdf
    • https://static.usrfiles.com/ugd/5e81b9_0abdeec48c3d4d4eaf504a3b1a869ca5.pdf
    • https://static.usrfiles.com/ugd/724fb5_f12f98f587c34f8aa5891b2a77087301.pdf
    • https://cdn.shopify.com/s/files/1/0431/0679/5686/files/mobumed.pdf
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/bacteriologia_y_virologia_veterinaria_merchant_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0431/9802/1793/files/absolute_sandman_volume_1.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_off00006017.bin
ae52010da4e2ce3aeb3009e44c0f714ce6f5828f27cc0afc02d6d323a482e35c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6017 5540 bytes
font_01_sfnt_off000072b8.bin
2b580db68dbf302065862465d79f79364091b9317555372ab23b9189ac0601b5
pdf-font-stream PDF embedded font (sfnt) at offset 0x72B8 10636 bytes