Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e0424233cb47d0e…

MALICIOUS

PDF

52.9 KB Created: 2020-08-21 02:13:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47d58f14faa7d486e42fe730e3b5db3b SHA-1: e6c3376f178b8acc65b90ad2a2b5cfe69e6a6ef8 SHA-256: 2e0424233cb47d0e55c3e09b370c679313c1c59e2cc0dee3287876c7012b9056
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a malicious redirector link. Another heuristic flags it as a link farm, suggesting an attempt to manipulate search engine results or distribute malicious content. The primary malicious URL identified is https://ttraff.cc/pify?keyword=cyborg+android+and+humanoid, which is likely used to redirect users to further malicious sites. The document body itself is heavily obfuscated and contains some of the URLs, but does not provide clear textual lures.

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.cc/pify?keyword=cyborg+android+and+humanoid
    • http://files.housingcourt4all.org/uploads/1/3/0/8/130814229/rebuk_tajikevifel_xuzos.pdf
    • http://files.goodsamrehabilitation.org/uploads/1/3/0/8/130814926/9917986.pdf
    • http://files.palladinohomeinspection.com/uploads/1/3/1/4/131438464/zuwokerunokurugaka.pdf
    • https://cdn.shopify.com/s/files/1/0431/4975/4519/files/axis_asap_charges.pdf
    • https://cdn.shopify.com/s/files/1/0432/7306/0520/files/67871756675.pdf
    • https://cdn.shopify.com/s/files/1/0433/4983/5930/files/communication_plan_template_for_change_management.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/kidabaxidi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2431/7607/files/jujalitakujinatuzaga.pdf
    • https://cdn.shopify.com/s/files/1/0428/0123/4076/files/68006364164.pdf
    • https://cdn.shopify.com/s/files/1/0431/4166/0826/files/64253673531.pdf
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/76273400508.pdf
    • https://cdn.shopify.com/s/files/1/0437/7565/6097/files/fabepekup.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/quintiles_get_with_the_guidelines_login.pdf
    • https://cdn.shopify.com/s/files/1/0430/7910/6724/files/casella_berger_statistical_inference_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0433/5396/4702/files/algernon_blackwood_the_doll.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_off00008dae.bin
286b09543125a07427cff71c4de565f0eef4ccda12ae3248c92a2304f79c8288
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DAE 5176 bytes
font_01_sfnt_off00009f10.bin
f724315647b3d615e5f94eb7e515bb08de8606f6acb7a752b8f55b388895c6de
pdf-font-stream PDF embedded font (sfnt) at offset 0x9F10 11868 bytes