Malicious PDF — malware analysis report

Static analysis result for SHA-256 82097798c0e0a492…

MALICIOUS

PDF

42.0 KB Created: 2020-08-11 14:51:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 45c6ad7378caf6652b95bbb97eb2cd5a SHA-1: 37a23918beab32ab5a6c4ba078fbf890caecbe3c SHA-256: 82097798c0e0a492a3775faab58ca9eb151430d51645c4d82c047e170e0e4a51
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to a known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The SE_ADVANCE_FEE_SCAM_LURE heuristic suggests a social engineering tactic, likely to trick users into clicking the malicious link. The ML_NYX_PDF_MALICIOUS classifier strongly supports the malicious nature of the file.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=application+of+computer+in+health+care+pdf
    • http://files.jeffjuddmusic.com/uploads/1/3/1/6/131606434/bawepopi_milanenejo_xiwaf_ravaxudamar.pdf
    • http://kevozifiv.pollyauctions.com/uploads/1/3/0/8/130814328/4cd084.pdf
    • http://voligom.thetruthresource.org/uploads/1/3/2/8/132814930/b74329bba5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0437/1510/0822/files/90451461393.pdf
    • https://cdn.shopify.com/s/files/1/0432/6454/0835/files/91488471898.pdf
    • https://cdn.shopify.com/s/files/1/0437/4170/8437/files/bulimia_y_anorexia_libros.pdf
    • https://cdn.shopify.com/s/files/1/0432/1542/1600/files/alcoholics_anonymous_big_book_4th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/aws_certified_cloud_practitioner_exam_dumps.pdf
    • https://cdn.shopify.com/s/files/1/0433/8506/1541/files/kuguvizuvozuzadu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1510/0826/files/adjective_and_adverb_prepositional_phrases_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0440/9065/4885/files/kilesidefatimovulojesixo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6473/7448/files/20721724876.pdf
    • https://cdn.shopify.com/s/files/1/0435/9123/7791/files/16982296914.pdf
    • https://cdn.shopify.com/s/files/1/0431/0463/2992/files/budezeze.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_off000064f5.bin
3f5569d7695788d036b62d201809604d570e3f7f47f29ba89d231e49c2cd00f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64F5 5204 bytes
font_01_sfnt_off00007674.bin
c7cd2917e7e45f5951d6f9d2ca4b6e151a47126e0fc65a865704fa446991a54c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7674 10780 bytes

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