Malicious PDF — malware analysis report

Static analysis result for SHA-256 95255ea07ff44c50…

MALICIOUS

PDF

183.5 KB Created: 2021-04-03 00:48:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 662839f5d5c0132e79d9f33122941b38 SHA-1: 8d87be693cc2ad5663ae283983055627aeb48af8 SHA-256: 95255ea07ff44c50a7d325e4c8d6014127fb2d0508ee5165cd41d551d27da284
166 Risk Score

Malware Insights

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

This PDF document exhibits characteristics of an advance-fee scam, using lottery or prize language combined with parcel delivery requirements to deceive the user. The presence of multiple external URIs, including one flagged as a link farm on disposable hosting, suggests an attempt to redirect users to malicious sites. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly indicate a phishing or scamming attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • 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.
  • 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://zajinet.ru/award?keyword=naruto+shippuden+manga+1+pdf PDF link annotation
    • https://disumudumoronu.weebly.com/uploads/1/3/1/4/131408153/xejamibexujap-zapagefedi.pdfIn PDF document text
    • https://wodumipanopova.weebly.com/uploads/1/3/4/7/134731655/f02ba23.pdfIn PDF document text
    • https://sepolekabu.weebly.com/uploads/1/3/1/6/131606201/877381.pdfIn PDF document text
    • http://jajeredax.22web.org/metinalinigeru.pdfIn PDF document text
    • https://nuvomananakoleg.weebly.com/uploads/1/3/1/4/131453817/foroxumolijiki.pdfIn PDF document text
    • https://cdn.sqhk.co/mifijizudi/Mhdjjcx/head_soccer_champions_league_unblocked_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/vipabure/YvCgije/69715960345.pdfIn PDF document text
    • https://pugixodazujok.weebly.com/uploads/1/3/2/7/132710779/ba237846e45ee4.pdfIn PDF document text
    • http://maska-respirator.shop/flatness_tolerance_on_stainless_steel_sheetca502.pdfIn PDF document text
    • http://sodalabs.club/vyapar_crack_for_pczwz5x.pdfIn PDF document text
    • https://cdn.sqhk.co/vutexexukus/ihhfhfb/smyrna_first_umc_smyrna_ga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://naxadib.rf.gd/how_to_thread_a_singer_promise_1409_sewing_machine.pdfIn PDF document text
    • http://gufusogatodogej.rf.gd/5666091575.pdfIn PDF document text
    • http://wosoremozojofam.epizy.com/45685980433.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5c4e27f-cf76-48de-a62d-58d6ba40f8c2/lomirumoga.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e159fb7-adee-4fa8-b1e1-722c3418be4c/navokexuledumulux.pdfIn PDF document text
    • http://gazadimo.rf.gd/aerobiosis_y_anaerobiosis.pdfIn PDF document text
    • http://pukevekoba.rf.gd/retirement_planning_worksheet_free.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_off0001de7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DE7B 59700 bytes
SHA-256: fac0d750e312ac124bf3ce535b67f18d3d7aeadd25543c134b54cf472a887b54
font_01_sfnt_off0002939a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2939A 5444 bytes
SHA-256: 12c47322281abed4d15dbde8e8a8cb9e664044f043c35f7ea26a17d7fce50bf7
font_02_sfnt_off0002a603.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A603 12780 bytes
SHA-256: 1a8fe072b172c51692a8e14f06ddd9fb9d4563bb2373015eb9db43585b17cbcc

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