Malicious PDF — malware analysis report

Static analysis result for SHA-256 f60bafccd49e75ee…

MALICIOUS

PDF

82.2 KB Created: 2020-12-18 06:19:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: d684371658ccfddc00c7f0b1c9e93ad9 SHA-1: ba4a99cd8ab2cdfba53ce2b6cf7f8017a8d15f96 SHA-256: f60bafccd49e75ee4365c4aca6e78fe9c95acd175adf2a0d162a81ffdfc7956f
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 'https://gettraff.ru/123?utm_term=100+foot+hdmi+cable+4k'. This URL is the primary indicator of malicious intent, likely leading to a phishing page or malware download. The ML classifier and ClamAV also strongly indicate maliciousness. No scripts were extracted, but the embedded URL is sufficient evidence for a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gettraff.ru/123?utm_term=100+foot+hdmi+cable+4k In PDF document text
    • https://cdn-cms.f-static.net/uploads/4365998/normal_5f97750c2ab74.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf5279f8cdb769c6d97f60/1606374010034/integrating_quotations_worksheet_high_school.pdfIn PDF document text
    • https://s3.amazonaws.com/mozirolinitaje/salubafetoworosa.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/18072488274.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcdf0f856cd0c1ac386101d/t/5fd73937226e9048fad1cc3a/1607940407696/marriage_hall_booking_application_format.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/the_trumpet_of_the_swan_trailer.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/32091111782.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/raxupezo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe04b79b1ed03538a16a3b/1606288567456/gonasosuluramodexi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4dfad403f5353fdaf152a/t/5fcf27b4798354522d09c9a7/1607411637271/95827416805.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/bafipobatugafibuxorabodu.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/swtor_gunslinger_guide.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE982 5376 bytes
SHA-256: 26af7c01f7c91912e2a7dd0802c5a49dba76189bbb1f647feb2f2560078f6433
font_01_sfnt_off0000fbaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBAF 12492 bytes
SHA-256: ae990836a444ddbbfe3ebeca761fea57a28b0306b48a2c714fc1dc7d0bc5ab77
font_02_sfnt_off000124ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124AB 16384 bytes
SHA-256: 0a74fccdd03e10d65e811fe9613af658096918ac4fdb4565bb28b623844c8461

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