Malicious PDF — malware analysis report

Static analysis result for SHA-256 bedac20b842c7ef0…

MALICIOUS

PDF

64.0 KB Created: 2021-01-23 02:59:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ca332bd2491ff603ec63ce971c786c03 SHA-1: bed022b82a8c80a060de354d9f00ec8a748bb92a SHA-256: bedac20b842c7ef0644c23ebbb1ec90f70f9892f802f331834703819eabdbc96
184 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by multiple heuristics and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded links, with at least one pointing to known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to contain search terms and application metadata, suggesting a lure for users searching for specific information. The presence of embedded links and the overall structure strongly suggest a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9813

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILED
    The cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
  • 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://yafferge.ru/123?utm_term=linn+county+gis+oregon In PDF document text
    • https://site-1176001.mozfiles.com/files/1176001/sinonimos_de_picaporte.pdfIn PDF document text
    • https://xeneniwavufew.weebly.com/uploads/1/3/2/8/132814439/xijajem.pdfIn PDF document text
    • https://lobakazuperowe.weebly.com/uploads/1/3/4/3/134352895/8693446.pdfIn PDF document text
    • http://gesabagipo.22web.org/zanella_ceccato_150_manual.pdfIn PDF document text
    • https://site-1223962.mozfiles.com/files/1223962/world_of_warcraft_shadowlands_release_date.pdfIn PDF document text
    • https://site-1178275.mozfiles.com/files/1178275/wifemivufujolixopubirag.pdfIn PDF document text
    • https://kigatuxusim.weebly.com/uploads/1/3/5/3/135305206/5178157.pdfIn PDF document text
    • https://site-1168494.mozfiles.com/files/1168494/moketi.pdfIn PDF document text
    • http://duvazejezirofid.22web.org/lottery_awards_for_all_application_form.pdfIn PDF document text
    • https://site-1177042.mozfiles.com/files/1177042/keligexumovox.pdfIn PDF document text
    • https://monirazosakazux.weebly.com/uploads/1/3/5/3/135316997/rokokajovinuluk_nugadagusarus_fopok_dazoxazov.pdfIn PDF document text
    • https://felixitu.weebly.com/uploads/1/3/4/0/134012625/tozitajo.pdfIn PDF document text
    • https://kewekekonuv.weebly.com/uploads/1/3/4/7/134732265/xalakadabofofile.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://webekilijonelew.epizy.com/tobikivimanipogavovinug.pdfIn PDF document text
    • http://jajowisomipuw.epizy.com/48616480880.pdfIn PDF document text
    • http://lexawelezalum.epizy.com/fire_risk_assessment_checklist.pdfIn PDF document text
    • http://poramukuwulaji.epizy.com/campus_france_ci_catalogue_des_formations.pdfIn PDF document text
    • http://debarunuzijabe.rf.gd/jawajubagupinebolegume.pdfIn 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_off0000c8db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8DB 4768 bytes
SHA-256: db4f2e4dcca6c17b0d6e83396fb20d134cfc8c5c7645343e3819fe6f8ff6e4a6
font_01_sfnt_off0000d937.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD937 10228 bytes
SHA-256: 3031dc58e56a4ccaad71afe711a21781d2fbd0df66998448b572e0874d985fbb

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