Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbe1c77d018b1bdd…

MALICIOUS

PDF

69.8 KB Created: 2021-02-19 10:26:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 856b290dbb2144ba8f75ce065c37339c SHA-1: 01f9517030daa6ada1c66a6f66daab0d39b67e31 SHA-256: bbe1c77d018b1bdd054d1f14c5b01ad7e156c1efaabfd916b87b923184810bad
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/wix?keyword=4th+and+goal+2018+unblocked+games+77 PDF link annotation
    • https://sabutiwageb.weebly.com/uploads/1/3/5/9/135992853/razadu-butubix-fatovikasoxut.pdfIn PDF document text
    • https://vijivavepedu.weebly.com/uploads/1/3/4/3/134313627/rafakopaserotoxujuse.pdfIn PDF document text
    • https://cdn.sqhk.co/kuwusetoteji/jfIiipn/subway_bbq_rib_sandwich_2019.pdfIn PDF document text
    • https://funopazotasar.weebly.com/uploads/1/3/1/0/131070342/suwemedeti-vogixiwituze-raxevureg-togazegidiwopi.pdfIn PDF document text
    • https://saxeguwub.weebly.com/uploads/1/3/1/4/131406831/wirifikivek_zunimonewejub.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vesevujivodekut.epizy.com/lonororomuvosokunexev.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/47203922521.pdfIn PDF document text
    • http://debetofewozuri.epizy.com/enoch_powell_wife.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/secret_garden_adagio_violin_sheet_music_free.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/activation_energy_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/arrl_books_free_s.pdfIn PDF document text
    • https://s3.amazonaws.com/siwixomudit/45247826886.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/ballad_of_gay_tony_100_mission_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jifesu/english_grammar_and_vocabulary_exercises_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/tugabijenovili/mexewoneki.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/306915900.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_off0000d2be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2BE 6052 bytes
SHA-256: 143c77d975f9ce2894ac1713fdbff62521aa6fda574897c69fdcf2275f86e13f
font_01_sfnt_off0000e73e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE73E 10216 bytes
SHA-256: e12c0401b9886ff0a955c831c083ceb7aade2061623ef91b6dd011421d90227a

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