Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a2b54514bec64a1…

MALICIOUS

PDF

83.6 KB Created: 2021-03-13 17:11:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: f6a9544786f86e55abc01c07cc496ed3 SHA-1: 29d6c022e79aa0d8a52b0f310203488b7bee6a27 SHA-256: 6a2b54514bec64a12ed0039c753747ed92633cabe33f8eafac926292125a2ec8
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a high-severity heuristic indicating it's an image lure linking to an SEO redirector for phishing. The ML classifier and ClamAV also flagged it as malicious. The embedded URL leads to a domain that appears to be part of a phishing campaign, likely attempting to trick users into downloading further malicious content or providing credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://gimoguvi.ru/strik?utm_term=how+to+listen+to+more+new+music PDF link annotation
    • http://pijirikuzi.iblogger.org/balochi_audio_songs_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450347/normal_5fdb0c4f50c2a.pdfIn PDF document text
    • http://bowawusugipabes.22web.org/69219957881.pdfIn PDF document text
    • https://cdn.sqhk.co/nijegonusas/jdihFOb/badri_movie_songs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501361/normal_604cc69a4dd96.pdfIn PDF document text
    • http://maxist.ru/611631206231o31w.pdfIn PDF document text
    • http://fakts.design/what_is_the_cpt_code_for_eye_testq4pms.pdfIn PDF document text
    • http://bizarur.iblogger.org/ada_easd_2015_guidelines_ppt.pdfIn PDF document text
    • http://techanomic.com/96794745549thm1o.pdfIn PDF document text
    • https://cdn.sqhk.co/jagugide/jbhahhe/jedazuzivisegupeti.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/vufupu/goxuxejetadozedepo.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/aranda_primary_school_uniform_shop.pdfIn PDF document text
    • http://mopunetite.epizy.com/samsung_galaxy_s5_att_unlock_bootloader.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/4513269293.pdfIn PDF document text
    • http://tuvugerij.rf.gd/22606271687.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/tokafopavomulowek.pdfIn PDF document text
    • http://leveroratex.rf.gd/business_writing_today_3rd_edition.pdfIn PDF document text
    • http://fegifujeviba.epizy.com/boundaries_book_study_guide.pdfIn PDF document text
    • http://debalipusafuj.epizy.com/17240535170.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fcd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD7 4668 bytes
SHA-256: d82531bf8055dea1f6fdfb67198f29dc34a92fa2f8e671b393c04a1fbd258f16
font_01_sfnt_off00010ca8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CA8 11324 bytes
SHA-256: e0caad45171740cef1b6b3b533b060c94c8d6c251fc1b2e111aa580202a6802d
font_02_sfnt_off00013337.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13337 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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