Malicious PDF — malware analysis report

Static analysis result for SHA-256 bda5b05aeb048fba…

MALICIOUS

PDF

41.8 KB Created: 2020-11-03 03:12:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 78ffa75184e03669b6205ece5fa87bbc SHA-1: 329cc0416209f73e20d7803b079bc134d9bbae21 SHA-256: bda5b05aeb048fbae4ba713cdad7b7a483dde181dcd2330ee1baef6345e49171
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ggtraff.ru/aws?keyword=english+bulldog+puppies+for+sale+midwest' is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lure the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://ggtraff.ru/aws?keyword=english+bulldog+puppies+for+sale+midwest In PDF document text
    • https://vepazigomopu.weebly.com/uploads/1/3/4/3/134398405/32e3b130d7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374374/normal_5f8b0e62426d1.pdfIn PDF document text
    • https://liwevapazu.weebly.com/uploads/1/3/1/0/131071299/dikemezexufi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366350/normal_5f87e093e9a82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392659/normal_5f910ea2b0efd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/leteraxewe/popimisivinovodadi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/83537cd5-133e-4616-bd05-04e3abf3f8b1/tupapa.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawexawinogad/sophisticates_hairstyle_guide_clip_snip.pdfIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/momojexudipogibetesabuviz.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/ashrae_62._2_2016.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/tisinezu.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/71304211462.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000601e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x601E 5644 bytes
SHA-256: 8712468440fd090c4134b6d3debb334413bae7b9d13fc02f6d85ba3394115749
font_01_sfnt_off00007333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7333 11676 bytes
SHA-256: 4431cb47f0ee10c089c34f276a92356ce5a7868e45d0aeb7501da2d364e8d886