Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bd3f11c74067826…

MALICIOUS

PDF

38.1 KB Created: 2020-11-02 10:02:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 15eb063d3ba69a6ea115ff2b3e84a8f0 SHA-1: bc5cc2bfc7604263ca11337e68407358b195ee05 SHA-256: 9bd3f11c740678265a162d9d080d0e212e5e328ee192a340dee1da3adc748413
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a link to a known malicious redirector, disguised as a "Labview user manual". The ML classifier strongly indicates maliciousness. The embedded URL is the primary indicator of malicious intent, likely leading to a further stage of attack.

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://ttraff.me/123?keyword=labview+user+manual In PDF document text
    • https://cdn-cms.f-static.net/uploads/4388825/normal_5f96cb338772c.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/rizijubovapuk/weight_calculator_formula.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a267e625-15ba-4ef8-a307-554c9c7c0322/gumomif.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a436bbad-98ed-46f9-b4f6-ec71e30baa27/fiche_monnaie_ce2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/267164c3-eca6-414b-b766-b0229756bbce/1611391887.pdfIn PDF document text
    • https://s3.amazonaws.com/zowejunef/games_unblocked_669.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/fufotaxulob.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/remote_control_tractor_pulls.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/377a1e0f-44cc-420b-86fb-dde2d01f69e3/sezotobodiragivirovifa.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_off000058f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58F2 5064 bytes
SHA-256: 8c20f2013eb9790daf25153edf17e235e92b3667a1b71bc34e7bb4f9f38419b2
font_01_sfnt_off00006a28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A28 9956 bytes
SHA-256: 0db15c9b9732defaf762859839e3797a4f05a1a63b77001bc4b763754ed61ade

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