Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d98a08203ef6931…

MALICIOUS

PDF

83.0 KB Created: 2021-03-21 00:00:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b0a79843b42223cf47392fc2238bd84 SHA-1: e5bc9670442cf380ca6a68978c8550871be0eec8 SHA-256: 6d98a08203ef6931963ba7e11cce4797034abe65a3cf53c1539a3fbf499da0e3
206 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of a Business Email Compromise (BEC) or advance-fee scam, specifically a payment redirection lure. The heuristic 'SE_PAYMENT_REDIRECT_LURE' indicates the document contains language related to changing bank or wire transfer instructions. The 'SE_ADVANCE_FEE_SCAM_LURE' heuristic further suggests a lottery or parcel delivery scam context. The presence of an external URI pointing to 'pelibifir.ru' with a 'google phishing email report' UTM term suggests a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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/123?utm_term=google+phishing+email+report
    • https://cdn.sqhk.co/luwesefizi/cjehEgd/globe_rewards_list_1_point.pdf
    • http://mozovurezet.iblogger.org/how_to_sample_garageband_ios.pdf
    • https://cdn.sqhk.co/posuwumujome/YjcxjeB/e_news_hosts_morgan.pdf
    • http://jitokinut.iblogger.org/shatta_wale_my_level.pdf
    • http://faxagigotitij.66ghz.com/zutewin.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/mudurixo/california_dmv_drivers_license_test_answers.pdf
    • https://uploads.strikinglycdn.com/files/20debcd9-4782-4242-a944-559a6e3e28af/lista_de_verbos_irregulares_en_ingles_con_pronunciacion_y_significado.pdf
    • https://uploads.strikinglycdn.com/files/78830427-64fd-466b-b7ec-2fba474a686f/98754340479.pdf
    • https://s3.amazonaws.com/tapelu/gesukasosezil.pdf
    • http://pulupalu.epizy.com/31770557940.pdf
    • https://s3.amazonaws.com/loneminovu/xitawipasepemipexag.pdf
    • https://1eb42bdc-3da6-4b32-b75f-4382f1721f8e.filesusr.com/ugd/35474d_10bf0f416dbb4864809e9c47189349b3.pdf?index=true
    • https://uploads.strikinglycdn.com/files/b93e392a-336a-4589-ac71-1f3966990acf/what_was_the_main_political_reason_of_the_french_revolution.pdf
    • http://susegutej.epizy.com/nuxilafevusivufixagudo.pdf
    • http://boligasenupe.rf.gd/causes_of_conduct_disorder.pdf
    • https://1c985592-4fe2-425a-b8d2-7dc24782370c.filesusr.com/ugd/a13bc2_44c1b2a97b304bc68e61c5d897579d22.pdf?index=true
    • http://vugoban.epizy.com/xoderoxol.pdf
    • https://uploads.strikinglycdn.com/files/24d73a73-4aa9-40ce-b7f1-6eedca8dd34b/entelman_remo_f_teora_de_conflictos.pdf
    • https://3568c1c9-c281-4b9a-9ea9-d5d291e0176b.filesusr.com/ugd/e5d8db_57e37b7a30954d7a838951061287ca43.pdf?index=true
    • https://7095e710-59ac-4d27-8a5a-f3bbcaf65deb.filesusr.com/ugd/418e76_5811a26681d84619b84511775645f4d3.pdf?index=true
    • http://konewumabujak.rf.gd/23671099818.pdf
    • http://ponaduzatofu.rf.gd/toefl_vocabulary_test_with_answers.pdf
    • http://gexetive.epizy.com/42813893764.pdf
    • https://5c09c65f-4728-49e3-9562-8692e696fc4f.filesusr.com/ugd/32acb1_60dd113e6558450397e059c1fa36e336.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010653.bin
328ffe1f46735759f721f515e3ad969d82712f183c9ae8a7150bc6a827545ed8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10653 5264 bytes
font_01_sfnt_off00011815.bin
bcd07703bbd65c49cae840dbdb03e7b4a68e24d1d7f82b02bb9fbb92690cbb26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11815 11320 bytes

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