Malicious PDF — malware analysis report

Static analysis result for SHA-256 3967c8056086cbaf…

MALICIOUS

PDF

77.2 KB Created: 2021-03-02 04:59:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 0917bab8a7f43efde903d23a7ffa84db SHA-1: d525e22565010a1d8649afea1b6088ed8f666111 SHA-256: 3967c8056086cbaf1e9368c7ecc1412b774f9d983c5be322255134e2c1193900
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing attempt. It contains numerous external links, many hosted on disposable domains, designed to redirect users to malicious content. The document body, though obfuscated, appears to be a lure related to starting a pawn shop, likely to trick users into clicking the embedded URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • 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://mezovuduw.ru/aws?utm_term=how+much+to+start+a+pawn+shop PDF link annotation
    • http://playmarket-online.com/airlift_performance_windshield_bannerwisoc.pdfIn PDF document text
    • https://jerefukixuludew.weebly.com/uploads/1/3/4/6/134686450/1402600.pdfIn PDF document text
    • https://bafumujem.weebly.com/uploads/1/3/4/4/134498711/xosiri-wujuv.pdfIn PDF document text
    • http://help-lnstagram-verifycopyrgiht.com/nijazemijedmf46a.pdfIn PDF document text
    • http://farvestnn.ru/tizuwomeluxibureketigavuva697x.pdfIn PDF document text
    • https://labopepiw.weebly.com/uploads/1/3/4/7/134747507/b88de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403681/normal_600ee858123b0.pdfIn PDF document text
    • http://cmb-eco.com/descargar_11_minutos_paulo_coelho_epubye7dz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371248/normal_6007ab36339c5.pdfIn PDF document text
    • http://sepoxudozixo.sportsontheweb.net/what_is_development_biology_embryonic.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384154/normal_60383771b8c4a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424330/normal_5fed9d978bc04.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379387/normal_5fc6236d20461.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371246/normal_600ff08907b8e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409609/normal_5fe535bf0d80c.pdfIn PDF document text
    • http://wikowezenitezo.medianewsonline.com/18771204299.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/tonemakopinibem/why_digital_asset_management_is_important.pdfIn PDF document text
    • http://luvabokinoleg.onlinewebshop.net/how_to_change_oil_in_toro_self_propelled_lawn_mower.pdfIn PDF document text
    • http://pojozija.onlinewebshop.net/dogufuranevuridox.pdfIn PDF document text
    • https://s3.amazonaws.com/gusule/desewamipesige.pdfIn PDF document text
    • http://nibemodida.myartsonline.com/how_to_keep_charcoal_drawings.pdfIn PDF document text
    • https://s3.amazonaws.com/zizene/32700645154.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/32575471855.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_off0000f29d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF29D 5196 bytes
SHA-256: dfcbbeb3cd7d938478ea45cbea58b42aa9de8c9c386f39c03fdad533b2d31729
font_01_sfnt_off0001042e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1042E 10236 bytes
SHA-256: eb0cabaee4961ff2f6754bebbeaa08a8e270c1c6f631da5990db18a9a5b945ef

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