Malicious PDF — malware analysis report

Static analysis result for SHA-256 0698147ff5f7fcb3…

MALICIOUS

PDF

81.6 KB Created: 2021-03-09 12:13:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 2d29a16edb28de629234e0149fc1fb2c SHA-1: 86095d81df66d4bb8551e74c551585a812a46e76 SHA-256: 0698147ff5f7fcb37d13713c335f41958ef655f6c3d5372e7b96e144c03bd16d
106 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one heuristic specifically identifying a 'Payment redirection / bank-detail change lure'. The ML classifier also strongly flagged this PDF as malicious. The presence of numerous links, many on disposable hosting, suggests an attempt to distribute malicious content or phishing pages. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://pelibifir.ru/award?keyword=exercises+passive+present+simple+pdf PDF link annotation
    • https://fesimubigezati.weebly.com/uploads/1/3/4/5/134515628/b49be2a0b6fd.pdfIn PDF document text
    • http://copyright-help-report.com/centrifugal_pump_operation_manualc81hh.pdfIn PDF document text
    • http://madewithsunshine.com/what_does_a_legal_opinion_letter_mean71zw4.pdfIn PDF document text
    • https://magudutetu.weebly.com/uploads/1/3/1/4/131437318/gekugexudumawes.pdfIn PDF document text
    • http://lnstagaram-verifiedbadges-from.com/39225491590rx1er.pdfIn PDF document text
    • https://cdn.sqhk.co/wazotifuk/jgege79/71802489312.pdfIn PDF document text
    • http://shoop-fm.ru/smith_s_hours_north_ogdenqenx7.pdfIn PDF document text
    • http://microdigitalmeter.xyz/7256875811id4r2.pdfIn PDF document text
    • http://warewakeb.sportsontheweb.net/tom_clancys_the_division_2_gameplay_single_player.pdfIn PDF document text
    • https://cdn.sqhk.co/febenanedibu/hjsJTOD/95508955186.pdfIn PDF document text
    • https://davabodijesofid.weebly.com/uploads/1/3/4/4/134474123/tuwipu.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
    • http://wometopususap.rf.gd/why_is_there_blood_clot_in_my_eye.pdfIn PDF document text
    • http://dijixalokeditix.epizy.com/10_essentials_for_wilderness_survival.pdfIn PDF document text
    • http://xetulugesoboko.epizy.com/how_to_reset_fitbit_charge_hr_for_new_user.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/redutoxijiponewofomoso.pdfIn PDF document text
    • https://s3.amazonaws.com/gupojakami/nulls_clash_of_clans_apkpure.pdfIn PDF document text
    • http://dapibudajemuk.atwebpages.com/boss_dd-3t_review.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/eels_beautiful_freak_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/what_is_the_best_rub_for_smoked_brisket.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/84506825196.pdfIn PDF document text
    • http://ziwezamo.epizy.com/best_hollywood_movies_site_name.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f48a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF48A 5064 bytes
SHA-256: 2da25e6a6f8e81804212aa4d62c00051cb39c2088f046df42aeb282094fa9ebd
font_01_sfnt_off000105a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105A8 10924 bytes
SHA-256: 9fa6b969f439990d9cc8d94640ee40ef58a1c5c1e6291bb22e27e16a2c039518
font_02_sfnt_off00012afd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AFD 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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