Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd29ed492e643a3e…

MALICIOUS

PDF

48.9 KB Created: 2020-09-17 22:39:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 087fe3be2f382604d439fd1997ad6b0a SHA-1: a007418b01cd3b838e2a2ff1e729e676e9fa0d93 SHA-256: bd29ed492e643a3e78f09847f1e9cbb0e93ba5e8028235d256812c82e8ecd17f
152 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The ML classifier strongly indicates maliciousness. The presence of a link to 'ttraff.club' suggests a phishing or malware distribution attempt. No scripts were extracted, but the document body contains obfuscated text and a suspicious URL.

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.club/wix?keyword=skateur+professionnel+francais
    • http://files.silvermistmorgans.com/uploads/1/3/1/1/131163687/lemavipidodame.pdf
    • http://files.southsudanstem.org/uploads/1/3/0/7/130739269/54e9841680976.pdf
    • http://files.themedigap.shop/uploads/1/3/2/6/132682802/gasanu.pdf
    • https://cdn.shopify.com/s/files/1/0437/9456/3221/files/70032825671.pdf
    • https://cdn.shopify.com/s/files/1/0448/0276/9053/files/nomenclature_of_carbon_compounds_class_10.pdf
    • https://cdn.shopify.com/s/files/1/0434/2562/8316/files/atm_machine_money_avaiable_java.pdf
    • https://cdn.shopify.com/s/files/1/0431/5843/8039/files/bangali_babu_full_movie.pdf
    • https://13dcec43-909d-4039-9e28-5d7961d8776c.filesusr.com/ugd/1e52da_9270bff03e2c4651b297b5c775daa14d.pdf?index=true
    • https://40fd5ed9-0eb4-447a-8220-6779459e42cb.filesusr.com/ugd/a838c0_a247956565d247d79005d0d401480946.pdf?index=true
    • https://44a5a951-3ecc-41b3-9ce4-2e67433e0be2.filesusr.com/ugd/6260fe_504ee7809d0f4614b99d2d1752d13b34.pdf?index=true
    • https://a4ae594c-7a92-4245-a045-9172b9c95c78.filesusr.com/ugd/bb05c1_8df42d74834c4126bd9c6c35cc0d1f0b.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0436/0182/1859/files/jatowifav.pdf
    • https://cdn.shopify.com/s/files/1/0437/1467/4841/files/kefolodala.pdf
    • https://cdn.shopify.com/s/files/1/0446/1314/0643/files/ultimate_guide_to_google_adwords.pdf
    • https://cdn.shopify.com/s/files/1/0432/1532/3291/files/cuentos_reunidos_amparo_dvila.pdf
    • https://cdn.shopify.com/s/files/1/0440/1758/2230/files/terebojewuz.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/
    • https://cdn.shopify.com/s/files/1/0448/0276/9053/files/nomenclature_of_car

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c29.bin
f1b4890e6ab644ec0f06c60271ac71f2ff221adc048ee68fd3da660edd07361f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C29 5176 bytes
font_01_sfnt_off00008ddc.bin
21cdc1b16093a4ff786f5d3c08e21f5e0e36a9b3f8993270a1ddb5d6339a5836		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DDC 12516 bytes

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