Malicious PDF — malware analysis report

Static analysis result for SHA-256 14eb93c8d3c0a120…

MALICIOUS

PDF

86.2 KB Created: 2021-03-20 03:15:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 7652cd412060f5eb91d9b271b8bae4b8 SHA-1: fa44c8fc13fe93ec1f6012de700acd5072f3caca SHA-256: 14eb93c8d3c0a120080f3373472d89739962cf8c97ef3cafe69d46177f93297a
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 0.9995

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://jacksth.ru/wix?keyword=black+friday+2015+washer+dryers PDF link annotation
    • http://memisada.mygamesonline.org/59936925383.pdfIn PDF document text
    • https://cdn.sqhk.co/pugirunosamo/rMhdhjw/hidden_agenda_communication_synonym.pdfIn PDF document text
    • https://cdn.sqhk.co/nogawevorus/jja8ibq/publix_weekly_ad_merritt_island.pdfIn PDF document text
    • http://mesanezedid.mypressonline.com/difference_between_oral_b_pro_100_and_500.pdfIn PDF document text
    • http://lebojabufi.medianewsonline.com/descriptive_analysis_meaning.pdfIn PDF document text
    • http://jopuvalipi.22web.org/the_awakening_book_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/lorotukogof/ictha59/pusezajaziraf.pdfIn PDF document text
    • https://cdn.sqhk.co/kigimole/eRpP4mr/losiditebemekukafisik.pdfIn PDF document text
    • http://wanididezaj.getenjoyment.net/statistical_tests_kanji.pdfIn PDF document text
    • http://salizurewaki.mypressonline.com/md81_wifi_camera_manual_en_francais.pdfIn PDF document text
    • https://cdn.sqhk.co/nugunexinazo/fyfMjhb/34031440815.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tipesajiwe.epizy.com/bescherelle_conjugaison_francais.pdfIn PDF document text
    • https://434dcbc4-7bd9-40fe-99bf-e102daebf961.filesusr.com/ugd/07ef24_65c5b7195623421b8179a5d836fbdcce.pdf?index=trueIn PDF document text
    • http://vovojoj.atwebpages.com/difference_between_inductive_and_deductive_theory.pdfIn PDF document text
    • http://zobowubi.epizy.com/56759052511.pdfIn PDF document text
    • http://netawuwimirixor.onlinewebshop.net/singular_and_plural_nouns_worksheets_grade_3.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/venom_song_lyrics.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/slayer_band_font.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/18085842229.pdfIn PDF document text
    • http://rodexiguv.onlinewebshop.net/ribopamovabuwenejisik.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/health_and_safety_training_for_employees_in_hindi.pdfIn PDF document text
    • https://9c789f27-b70c-4c9d-9e83-211ee8f99b38.filesusr.com/ugd/bdeb4c_645f042ab5d84d8d953409ea42c2e3b3.pdf?index=trueIn 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_off00011191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11191 5864 bytes
SHA-256: 7e4255fdcc95f67debc178a120f52d6ea23891bc59e48ea245f3c79e0975272b
font_01_sfnt_off000125ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125AC 11080 bytes
SHA-256: b91b108d6bfc54fc9fc7572f3776e4ef0ee421e6e06927d775268ecae2de1594

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