Malicious PDF — malware analysis report

Static analysis result for SHA-256 117624c8526ab010…

MALICIOUS

PDF

68.3 KB Created: 2020-12-14 09:10:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 33ce9aa373598578cde811060dbba3ef SHA-1: 94b54a575ca49b15919c4da5a35cc5ad0585567d SHA-256: 117624c8526ab0105c3c5948c25a4cb8daec4e30cb568215bad84cf70b1ce811
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. This indicates an attempt to lure the user to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/123?utm_term=britax+marathon+clicktight In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/types_of_animals_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1781313e-46b3-4998-babb-3cef49800b4b/assetto_corsa_config.pdfIn PDF document text
    • https://s3.amazonaws.com/wuniku/11833151833.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/78778919203.pdfIn PDF document text
    • https://s3.amazonaws.com/nokiva/holliston_firearms_holliston_ma.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a14be706-e3bd-46f8-839e-699076e815ee/binudabimosobulegozawasim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/280ace8c-b34a-4253-81c7-ace62c955e05/vogim.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0dda511f6a41984857aa8/t/5fc49aa23f75b1664366ecbf/1606720166125/the_french_revolution_study_guide_part_3_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/sitozi/fomofozot.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/sevofevofigodolur.pdfIn PDF document text
    • https://s3.amazonaws.com/bufipevuril/jabunekaramovam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9a385c5f-5226-413a-b656-20b413ac1670/81775637886.pdfIn PDF document text
    • https://s3.amazonaws.com/pokorevalaxex/45419863697.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c40090f7-ea87-47e8-89eb-dc02588a0437/basic_ukulele_chords.pdfIn PDF document text
    • https://s3.amazonaws.com/sevoga/doubles_up_to_10_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/boy_scout_motto_and_law.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_off0000ce5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE5C 5216 bytes
SHA-256: 506fae50c096fa591d1400267258bd8a3a87256ca2207ae4f338b3f2256a9de6
font_01_sfnt_off0000dff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF6 10688 bytes
SHA-256: 138d98bb47e305f0f4b01a108dd989296403ffafd944f652744db2163e49b3b4

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