Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb64efb4f9a6a541…

MALICIOUS

PDF

41.0 KB Created: 2020-08-17 10:40:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: eeb663bdc8de7f7d78c99a0fa6204310 SHA-1: 3e031088bb542d4ef77e2c057974d0c267ee2af3 SHA-256: eb64efb4f9a6a541b9ac32259447c909456c71ad2f1622b38f546a72ce0b7618
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged as malicious by a machine learning classifier and contains a link to a known malicious redirector. It also features a large number of external PDF links, many hosted on seemingly unrelated domains, suggesting a link farm or SEO manipulation tactic. The primary malicious URL identified is https://ttraff.ru/pify?keyword=android+binding+default+value, which is likely used to redirect users to further malicious content. The document body contains obfuscated text and embedded URLs, reinforcing the malicious intent.

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.ru/pify?keyword=android+binding+default+value
    • http://fafaludo.mydivinewomb.com/uploads/1/3/1/4/131410227/8417130.pdf
    • http://begarizel.kontagious.net/uploads/1/3/2/7/132712615/geber.pdf
    • http://files.gobe-everyday.com/uploads/1/3/2/6/132682790/f4c7714b8380.pdf
    • http://pogevigu.scentedgrove.com/uploads/1/3/1/4/131408209/fapasegawuse.pdf
    • http://files.recycleyork.co.uk/uploads/1/3/0/7/130776728/domedebovu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6829/3287/files/balancing_equations_challenge.pdf
    • https://cdn.shopify.com/s/files/1/0433/6176/3480/files/pharmacological_treatment_of_hypertension.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1641/files/61076929518.pdf
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/properties_of_organic_and_inorganic_compounds.pdf
    • https://cdn.shopify.com/s/files/1/0433/6094/4286/files/bomag_bw142d_parts_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0877/7637/files/xizadosugepuzinonedunan.pdf
    • https://cdn.shopify.com/s/files/1/0438/8916/4440/files/queen_s_gambit_declined_vienna.pdf
    • https://cdn.shopify.com/s/files/1/0435/2360/4631/files/discogs_record_grading_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/8421/0583/files/27757519208.pdf
    • https://cdn.shopify.com/s/files/1/0432/0044/6626/files/4606117163.pdf
    • https://cdn.shopify.com/s/files/1/0432/6798/1474/files/jurnal_pluralisme_agama.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_off0000618c.bin
01e97dfdf467cfda8ee009c6268e928729346d64ed15f31b2d02244c80315e54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x618C 5088 bytes
font_01_sfnt_off000072f2.bin
7e20a0e3710da61da1299b318c0434e3a6555f0e3c44ff3d2f562ded02994c50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72F2 10592 bytes

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