Malicious PDF — malware analysis report

Static analysis result for SHA-256 b06e0abeb449f2dc…

MALICIOUS

PDF

65.5 KB Created: 2021-03-04 01:48:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 322b18fd70c955e08552eddf3c0bb23a SHA-1: dfff05e87eb6f8e6f624e93c8b3432b2c8e4a8cc SHA-256: b06e0abeb449f2dce134668194dc488a1da35351e9783c36f766a8b4e081242a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://midufefew.ru/123?utm_term=what+color+are+her+eyes PDF link annotation
    • https://cdn.sqhk.co/nomelafu/ugeyyij/kikoff_customer_service.pdfIn PDF document text
    • https://mafenipo.weebly.com/uploads/1/3/4/8/134879688/farafanarejage-fekowugakokugo-mamixabuku-sumaditape.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414486/normal_6013bc97c40fe.pdfIn PDF document text
    • https://garixapevawena.weebly.com/uploads/1/3/4/4/134495328/rekogotawedane_fibedixevuregu.pdfIn PDF document text
    • https://cdn.sqhk.co/difigobon/zajaWii/53400251945.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499984/normal_60245ef26c6c2.pdfIn PDF document text
    • https://cdn.sqhk.co/sirojenu/JhjjkbK/24257846977.pdfIn PDF document text
    • https://busegozujukot.weebly.com/uploads/1/3/0/8/130874370/xatopowemaz.pdfIn PDF document text
    • http://fefiwizam.sportsontheweb.net/breaking_night_summary.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378171/normal_6033a1c4a6284.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494430/normal_601db0896fac6.pdfIn PDF document text
    • http://nosixavol.sportsontheweb.net/economics_for_dummies_review.pdfIn PDF document text
    • https://liwavijej.weebly.com/uploads/1/3/4/3/134379327/8371268.pdfIn PDF document text
    • https://cdn.sqhk.co/govazofaj/bjdhwnH/tiger_shroff_new_song_dj_mix.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/wovedukevikov/3dmark_fire_strike.pdfIn PDF document text
    • http://sifebitufol.onlinewebshop.net/wicca_a_year_and_a_day.pdfIn PDF document text
    • http://xomapagovujux.atwebpages.com/how_to_build_your_own_vocabulary.pdfIn PDF document text
    • http://vidugozu.atwebpages.com/c_advanced_interview_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/nixivuli.pdfIn PDF document text
    • http://pojozija.onlinewebshop.net/sylvania_portable_dvd_player_charger_walmart.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_off0000c704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC704 5000 bytes
SHA-256: c67748f8a8584c9f635cf39d98f68ed4e911e4a0f596d2b8610f288bc9527dcc
font_01_sfnt_off0000d812.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD812 9628 bytes
SHA-256: 09a2542383bf1906bfb6941e0042cb8b5e511253ab1c3588582d76c54894e125

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