Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d0f6e6bf28bfb0e…

MALICIOUS

PDF

38.9 KB Created: 2020-08-20 06:10:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71ba506bc889e09a448e7bd2981b470a SHA-1: 8d2b4057206dbb09ba184cc1f07fde48b8724c95 SHA-256: 6d0f6e6bf28bfb0e7a9abc5edfb3971cfac34d89aaa72fee47b15d76bd192783
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links, with one pointing to a known malicious redirector infrastructure at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to "Clinical trials handbook pdf" and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous other PDF links, many pointing to Shopify, indicates a potential link farm or SEO manipulation tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=clinical+trials+handbook+pdf
    • http://dejedu.martinisimagedesign.com/uploads/1/3/0/7/130740019/8be2b2.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0431/5109/8007/files/troybilt_lawn_mower_manual.pdf
    • https://cdn.shopify.com/s/files/1/0444/4412/3303/files/eclecticism_philosophy.pdf
    • https://cdn.shopify.com/s/files/1/0432/7273/2836/files/mobafulas.pdf
    • https://cdn.shopify.com/s/files/1/0434/5790/4792/files/cisco_ise_1._3_patch.pdf
    • https://cdn.shopify.com/s/files/1/0434/1284/8790/files/30383225526.pdf
    • https://cdn.shopify.com/s/files/1/0437/3417/1813/files/ccna_test_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0437/8699/3816/files/mogubebokuka.pdf
    • https://cdn.shopify.com/s/files/1/0435/1026/8064/files/46897955010.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000059f9.bin
217e9cc2f6328bb99f6be83ae9a0672267b5a9000a21b0221efcff00470448f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59F9 5352 bytes
font_01_sfnt_off00006c0e.bin
e3099fa611a92aa15c38a4c58359a5cfee335f45ddac4381b5255aa6f6472889		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0E 10292 bytes

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