Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e4904be0f84b944…

MALICIOUS

PDF

73.6 KB Created: 2021-03-09 17:10:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 9abb17279e047e7c7f2c445a875242bd SHA-1: 2061eeaf8700691ba2ad4680e24522d93e0638f1 SHA-256: 7e4904be0f84b944a64526baeb45027333c23af2eab299ba4c0db7500bfb63b8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF document contains heuristics indicating it is a link farm and a payment redirection lure, suggesting a business email compromise pattern. The embedded URL points to a domain associated with malicious activity. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into clicking a link that leads to a phishing or credential harvesting site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/award?keyword=uber+data+breach+case+study+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4446035/normal_6003dde8c46a4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459323/normal_5ff802bca807a.pdfIn PDF document text
    • http://dunodipike.sportsontheweb.net/hopeless_colleen_hoover_book_review.pdfIn PDF document text
    • http://sawedes.mywebcommunity.org/31062356211.pdfIn PDF document text
    • http://nepatokada.mypressonline.com/cuisinart_dbm-8_user_manual.pdfIn PDF document text
    • http://newipufisatag.scienceontheweb.net/witanuz.pdfIn PDF document text
    • http://rejemezurufoveg.mywebcommunity.org/37423687732.pdfIn PDF document text
    • http://xijipeva.mypressonline.com/jaxubuzebe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://duwemanuwixam.atwebpages.com/97343552593.pdfIn PDF document text
    • http://zirutabu.myartsonline.com/vitivasubakex.pdfIn PDF document text
    • https://ce3a146a-d504-4efb-981c-4593fb85d965.filesusr.com/ugd/5b5da7_4cc8f96c9ad44293bc79e42257edc9b7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/nunakixuma/plastic_sheeting_ne_demek.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e475b996-d0d8-4b1a-b50a-fb36315acdf5/mitologia_griega_y_romana_libro.pdfIn PDF document text
    • https://e25b5f36-ee09-4010-8803-019b2853a23b.filesusr.com/ugd/c34eac_ccbc515fe1ba4d20941804105947b26c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wisuw/jivugulunurasuvelet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27e7314e-9c29-477c-baa7-2d732068feb0/how_great_thou_art_lyrics_framed_art_print.pdfIn PDF document text
    • https://s3.amazonaws.com/waxegatulo/85103719944.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dba6f95d-ad17-4afa-be1d-6d594155bcbb/rusirujomikorak.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f359180-83bd-43ec-8f7f-9e7f6d37dff8/2012_evinrude_etec_25_hp_for_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/daff8e2a-59bf-4f6a-b520-92feb118235a/23216900222.pdfIn PDF document text
    • https://s3.amazonaws.com/jukezeluf/41028564113.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_off0000e2e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2E2 5444 bytes
SHA-256: f05de97d9d96956dd1bbce4e9953686a0e685d83608cfcd4c481c4f3b3eaabe6
font_01_sfnt_off0000f566.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF566 10396 bytes
SHA-256: 93db21cf29d9e0339f5798c09d9fea0b86a63b69c55c251c251264ee7bd25e7d

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