Malicious PDF — malware analysis report

Static analysis result for SHA-256 01e6a76f66cc6f85…

MALICIOUS

PDF

80.8 KB Created: 2021-03-16 23:58:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 2c9fab756b571e9c93dadfab87c8639d SHA-1: b1452d6ba8bacbcb54c102d543920ee27cd2842f SHA-256: 01e6a76f66cc6f85c949c62318063bc1c6e87cadcbe73fafe3a63d3fdcaa3860
126 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to disposable hosting or redirectors, suggesting a link farm designed to lead users to phishing or malware sites. The document body, though heavily obfuscated, appears to be a lure related to living in South America, a common social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/strik?utm_term=el+mejor+pais+de+sudamerica+para+vivir PDF link annotation
    • https://donabetolemi.weebly.com/uploads/1/3/1/6/131637402/pedabimag.pdfIn PDF document text
    • http://zoviruk.22web.org/68852765139.pdfIn PDF document text
    • https://vesodadetuvi.weebly.com/uploads/1/3/2/7/132740638/kenenonis_mogip_fowefugemab.pdfIn PDF document text
    • http://wefigofozotime.22web.org/black_decker_grill_and_waffle_baker_manual.pdfIn PDF document text
    • http://tisimewifexumi.iblogger.org/because_i_could_not_stop_for_death_analysis_essay.pdfIn PDF document text
    • https://simujuzejopu.weebly.com/uploads/1/3/5/3/135305424/wununegomekop.pdfIn PDF document text
    • http://birobupalojasux.iblogger.org/2019_movies_tamil_hd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://pibusobi.epizy.com/boating_accident_report_vermont.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bd5823c-6514-42e0-becc-d009a7521cc5/ludep.pdfIn PDF document text
    • http://wadobenozunon.rf.gd/subalexogajivokuxixaf.pdfIn PDF document text
    • http://pogapebod.rf.gd/powafugufodekifararo.pdfIn PDF document text
    • https://s3.amazonaws.com/puretulenuza/94602929937.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/580a08dc-74ad-467a-bf45-9f97ede8c13f/kenmore_12_stitch_sewing_machine_manual_free.pdfIn PDF document text
    • http://dipubuwefo.epizy.com/autocad_electrical_free_download.pdfIn PDF document text
    • http://ketunetu.rf.gd/antebellum_reform_movements_women_s_rights.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d606ab0f-83c9-4d27-814d-04ac8b830670/agile_methodology_vs_waterfall_method_ppt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ac0fb1f-235c-4a83-9fda-60d3d01c5590/paxelowebuwos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a362a174-9b33-433d-a19b-b66334da6946/essay_writing_format_in_english_for_class_8.pdfIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/bibitoxelinudegugomu.pdfIn PDF document text
    • https://s3.amazonaws.com/juvetaso/dayton_shooting_police_report.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_off0000eeee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEEE 5008 bytes
SHA-256: b4f69c2478a1b181996482b9228bb12746561cb21981a31708c321de639c2e85
font_01_sfnt_off0000fff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFF4 11716 bytes
SHA-256: 524e2667ff98a4e5ae75b1547ae491e46ec1472e8bae79eec112e17242f32656
font_02_sfnt_off00012590.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12590 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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