Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2224ca001755f11…

MALICIOUS

PDF

77.5 KB Created: 2021-03-21 23:34:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 600c12873dbf1c9e84a7e8baf70cc2d1 SHA-1: 1662a8b6fe9743d6e5800afc804172f341c3ce03 SHA-256: e2224ca001755f11028040c6f0e85076ac503cc6e5045c6236f58795a2e8d832
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://lozipotod.ru/123?utm_term=introduction+to+business+statistics+questions+and+answers PDF link annotation
    • http://startask.ru/welsh_water_customer_assistance_fund_application_form3s7ig.pdfIn PDF document text
    • http://test123test.xyz/physics_vector_worksheet_2_answerspl37u.pdfIn PDF document text
    • http://redirunna.xyz/top_paid_android_apps_kickass_2018kn5l5.pdfIn PDF document text
    • http://mkuu.club/public_finance_ebooksqs5xm.pdfIn PDF document text
    • http://cmb-societe.com/jarifebevamebaxaje9dau5.pdfIn PDF document text
    • https://gibolavisijubaz.weebly.com/uploads/1/3/0/8/130813033/3405575.pdfIn PDF document text
    • http://vipmanmarket.space/6048522893727r2a.pdfIn PDF document text
    • http://esclub.pro/36714163211u61qp.pdfIn PDF document text
    • http://ouily.xyz/82617714528gtccz.pdfIn PDF document text
    • https://kafomepavazepa.weebly.com/uploads/1/3/1/4/131409794/dujeloze-dadobugabinus.pdfIn PDF document text
    • https://loligilifalo.weebly.com/uploads/1/3/0/7/130775627/2a313cca365a8.pdfIn PDF document text
    • http://cashbackk.site/how_to_write_a_rap_with_no_beatex5gi.pdfIn PDF document text
    • http://zahlungsservice-ch.site/gorezctd1h.pdfIn PDF document text
    • http://poopo.ru/how_many_calories_in_veggie_power_bowl_taco_bellap0uv.pdfIn PDF document text
    • https://nutifikidejuz.weebly.com/uploads/1/3/4/3/134347692/dumumugulej-mevolunuk-mewit.pdfIn PDF document text
    • http://thecet.xyz/linear_algebra_lang_free_download4lc8y.pdfIn PDF document text
    • http://app-3null.com/bubble_answer_sheet_1-100jlfnd.pdfIn PDF document text
    • https://wetifojijebene.weebly.com/uploads/1/3/4/4/134474841/1975994.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nadefivetokilak.rf.gd/the_forgotten_books_of_eden_complete_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/zarelusipofox/barclaycard_online_ppi_form.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/ieee_proceedings_paper_format_guidelines.pdfIn PDF document text
    • http://supetok.rf.gd/formal_prom_dress_shops_near_me.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/cancer_de_mama_minsal.pdfIn PDF document text
    • http://zotijoxamofos.epizy.com/pipesodiwefakebatazimasi.pdfIn PDF document text
    • http://lelurofu.rf.gd/trinity_violin_scales_and_arpeggios.pdfIn PDF document text
    • http://pugetuwozijeso.rf.gd/gibakiwigenizig.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f22b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF22B 5196 bytes
SHA-256: eb9f8c49a88007d57824feeac067268fbdde7e26f74a8ec6468f546cb00e28bd
font_01_sfnt_off000103ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103EC 10424 bytes
SHA-256: 1c6da7a6eb422e23dda0cc2cbdec52d8e89b3b137d6b3c38a7bca2e21c68df40

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