Malicious PDF — malware analysis report

Static analysis result for SHA-256 978138bd9eb88349…

MALICIOUS

PDF

70.8 KB Created: 2021-04-06 00:04:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 847f10dae4c0e96b5f7aac4e0f4cd4a2 SHA-1: 2a83659ba5620570af1ca94a49498d884f7087a1 SHA-256: 978138bd9eb883496a4a22a25b13317e3f390707461d65dbaf652384f695b006
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a lure related to 'badger hole bloomer wisconsin' and redirects to a suspicious URL, indicating a phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI point towards a phishing attack, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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://resalured.ru/wix?keyword=badger+hole+bloomer+wisconsin PDF link annotation
    • https://cdn.sqhk.co/numokafas/hhj2cgc/75915607855.pdfIn PDF document text
    • https://cdn.sqhk.co/fujotojaxob/TjiTnig/telegram_desktop_voice_call.pdfIn PDF document text
    • https://cdn.sqhk.co/beratinuga/eUrUcid/14378232986.pdfIn PDF document text
    • https://cdn.sqhk.co/giwumazusew/jiAHFLy/xigukopivepotirogixuz.pdfIn PDF document text
    • https://cdn.sqhk.co/renapudovi/Cmgjjbv/88120020967.pdfIn PDF document text
    • https://cdn.sqhk.co/xedogigiloli/ihaihhi/pupomeraxanutipijuvu.pdfIn PDF document text
    • https://cdn.sqhk.co/xovinexesun/jcpKjap/castle_farm_wedding_venue_knaresborough.pdfIn PDF document text
    • https://cdn.sqhk.co/tovitaxani/gigyN1K/mountain_bikes_for_sale_walmart.pdfIn PDF document text
    • https://cdn.sqhk.co/mudaxomemut/jbkbhcu/mi_at_t_apk_mirror.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ruvibume.rf.gd/3470572469.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee40cef9-8127-4c1e-9aa8-b9e5a4133882/63169294588.pdfIn PDF document text
    • http://bisodusar.epizy.com/how_to_know_the_standard_enthalpy_change_of_a_reaction.pdfIn PDF document text
    • https://s3.amazonaws.com/tiniruru/lutexovexekov.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatesawodiji/indian_food_chart_with_nutritional_value.pdfIn PDF document text
    • http://tapanowi.epizy.com/value_of_education_essay_200_words.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ae97d92-b73a-4372-8615-e993d2dc340f/71781877784.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be5de71e-79a6-4745-a1a6-267dd7528797/new_york_dmv_class_a_practice_test.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/kepur.pdfIn PDF document text
    • https://s3.amazonaws.com/wegemebufojafak/total_recall_was_it_real_or_a_dream.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3ddcbe1-ac4e-4387-98ff-da7b47ecf3f7/panasonic_telephone_headset_jack.pdfIn PDF document text
    • https://s3.amazonaws.com/bisiku/kaxekujozusomowifitux.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_off0000cc81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC81 5632 bytes
SHA-256: 706580e7573f7508d2748ca44a4ff9b640b33e10109308a65ff82355c7823a71
font_01_sfnt_off0000df86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF86 1936 bytes
SHA-256: 21a7146106e2ad29a4dcc6aa55cee169416400570e2b3d493b6d071cb256f2f3
font_02_sfnt_off0000e8c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8C8 10824 bytes
SHA-256: 8b73d89ace5f23585da7da70b6c74c05a3a375174fa71660d20efa50a53107f5

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