Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e2d0b25f2c441c9…

MALICIOUS

PDF

47.3 KB Created: 2020-08-03 23:49:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1af1dcaf79f8e8d2b2a9e0593c714b2d SHA-1: d0bfd3b2865b13c5f2d4672345d8de8d6751c06c SHA-256: 6e2d0b25f2c441c96a6d7fd8cef6cc0a0c23393540109be0b024eba4910b6432
154 Risk Score

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.cc/pify?keyword=%25D1%258F%25D1%2581%25D0%25BD%25D0%25B8%25D1%2586%25D0%25BA%25D0%25B8%25D0%25B9+%25D0%25B8%25D1%2581%25D0%25BA%25D1%2583%25D1%2581%25D1%2581%25D1%2582%25D0%25B2%25D0%25B5%25D0%25BD%25D0%25BD%25D1%258B%25D0%25B9+%25D0%25B8%25D0%25BD%25D1%2582%25D0%25B5%25D0%25BB%25D0%25BB%25D0%25B5%25D0%25BA%25D1%2582+pdf
    • http://files.russoenglish.com/uploads/1/3/1/6/131636990/8140816f.pdf
    • http://files.julianoshea.com/uploads/1/3/1/4/131453807/jibumojexoje.pdf
    • http://files.hartig.com/uploads/1/3/2/7/132710683/7804303.pdf
    • http://files.susanmaakestad.com/uploads/1/3/2/3/132303382/4fac45ad3a.pdf
    • http://files.sagewindowcleaning.com/uploads/1/3/1/4/131438604/5079775.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32177526878.pdf
    • https://cdn.shopify.com/s/files/1/0430/9975/0564/files/doxuma.pdf
    • https://cdn.shopify.com/s/files/1/0434/4587/8950/files/besowasogamu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5385/9494/files/human_bone_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/83222544276.pdf
    • https://cdn.shopify.com/s/files/1/0429/6874/4087/files/sjel_blad_castle.pdf
    • https://cdn.shopify.com/s/files/1/0438/6599/7472/files/clinical_chemistry_tests.pdf
    • https://cdn.shopify.com/s/files/1/0432/9881/6150/files/vuvinikiwokefiwibex.pdf
    • https://cdn.shopify.com/s/files/1/0439/0833/3736/files/binary_tree_javascript.pdf
    • https://cdn.shopify.com/s/files/1/0433/4977/0408/files/20302428594.pdf
    • https://cdn.shopify.com/s/files/1/0432/3239/5426/files/gunojiraminazek.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_off00006cfb.bin
5edfd44038c9f9abbf6d06cf4274b9938a9167da67849536ec880bd23df3959f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CFB 5652 bytes
font_01_sfnt_off00007ffa.bin
70c067c2b1eb136ddc6b0c3f04b2a8860b295cc3fa11bc7f23cf0fadb19c8ffc
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FFA 14416 bytes