Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bc30c963d1912ec…

MALICIOUS

PDF

79.6 KB Created: 2021-04-08 04:20:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: b0be4cab94f421b27039fb3729ce1cd5 SHA-1: cbe13f2fe182024af987ef8c4683bd37fe4a43b5 SHA-256: 7bc30c963d1912ec683e89bb9c55506892ae509596526c6e618d4a466db37d01
136 Risk Score

Malware Insights

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

The PDF contains a lure referencing 'Midnight in the garden of good and evil synopsis' and utilizes an SEO redirector to a suspicious URL, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a malicious document designed to lure users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://ponafet.ru/strik?utm_term=midnight+in+the+garden+of+good+and+evil+synopsis PDF link annotation
    • http://pipvip.ru/fosobuzonekinozorirorumyy2k.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410953/normal_6029e258636bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484641/normal_600ab35e47dfe.pdfIn PDF document text
    • http://my-favshopg.online/legend_of_the_boneknapper_dragon_fuljkuag.pdfIn PDF document text
    • http://kersita.space/schwinn_26_inches_womens_suburban_comfort_bike_bicycle_-_mintnnegg.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/didowugorokirug/63987695457.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/what_is_included_in_direct_labor_costs.pdfIn PDF document text
    • https://s3.amazonaws.com/dewazewokib/lubotev.pdfIn PDF document text
    • https://s3.amazonaws.com/zurovajij/70020252204.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b361eebb-43f4-41b5-a71c-29182ade6ccd/63126668722.pdfIn PDF document text
    • https://s3.amazonaws.com/puretulenuza/new_android_phones_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/geraromu/dopumexib.pdfIn PDF document text
    • https://s3.amazonaws.com/vuraradaso/certificate_of_conformity_new_york_notary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfb8ef6d-4e3b-426b-80f4-aa2d596a492d/eat_right_for_your_blood_type_book.pdfIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/rakipeturawoteziwuf.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/53330986527.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e01d88c-503f-411c-9aea-f70f76df9909/bose_quietcomfort_15_stopped_working.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/the_power_of_a_praying_woman_a_bible_study_workbook_for_video_curriculum.pdfIn PDF document text
    • https://s3.amazonaws.com/resixexi/katip_bartleby.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f93fc5c6-cbd9-45aa-a0e0-5d96ade72537/msds_sheet_for_clorox_disinfecting_wipes_fresh_scent.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/fast_icebreakers_for_meetings.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/logo_game_answers_pack_27.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/answers_to_chauffeurs_test.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_off0000f67f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF67F 5468 bytes
SHA-256: 03ffd578550cd40b5c04084ffd2a9efc18aa72d445b952b810906c5b44c118d2
font_01_sfnt_off0001092e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1092E 11536 bytes
SHA-256: 0b7f833b7d415becbe8a72ba20da36fd4ba400fc1cf0f9c1632179eacc63b71c