Malicious PDF — malware analysis report

Static analysis result for SHA-256 c01a17cd79de41b6…

MALICIOUS

PDF

80.9 KB Created: 2021-03-11 16:41:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: c51deccf4477be39e96b4d051eb0b099 SHA-1: 67336ac46340ec316353ea89ba56e750f50e664a SHA-256: c01a17cd79de41b635e6b549aeaaaf741ae5c1ca9fccca3bce63fbdaeaf19315
126 Risk Score

Malware Insights

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

The PDF contains embedded URLs pointing to suspicious domains, identified by heuristics as a link farm on disposable hosting. ClamAV detection and ML classification strongly indicate malicious intent, likely phishing or malware delivery. The document body, though heavily obfuscated, contains a keyword search term suggesting a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wix?keyword=jedi+guardian+kotor+build PDF link annotation
    • https://cdn.sqhk.co/zezetemirag/fIlQgf8/poxofado.pdfIn PDF document text
    • https://cdn.sqhk.co/numanazolov/Dighdjc/dukemubivunilufenirezeza.pdfIn PDF document text
    • https://cdn.sqhk.co/koxopumo/5Hgjjjh/11537330952.pdfIn PDF document text
    • http://gusedori.iblogger.org/guided_meditation_for_courage.pdfIn PDF document text
    • https://cdn.sqhk.co/rexukewanej/hatghmZ/fitekafufowupa.pdfIn PDF document text
    • https://cdn.sqhk.co/begokaxawip/rgeihjh/somiba.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://bezukovopobav.epizy.com/walgreens_blood_pressure_monitor.pdfIn PDF document text
    • https://s3.amazonaws.com/mejawiwomak/environmental_chemistry_class_11_ncert_notes.pdfIn PDF document text
    • https://5405d108-7f1e-482b-a10c-e06f62b7505d.filesusr.com/ugd/d941b1_1e5fb13c04f4448395ccc52e0e68d22a.pdf?index=trueIn PDF document text
    • http://xenuduximowub.epizy.com/lisuronif.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/walidosapi.pdfIn PDF document text
    • http://lifimakapusijok.rf.gd/homelite_blower_parts_australia.pdfIn PDF document text
    • http://rejaromavovelu.rf.gd/aps_exam_date_sheet_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/rimepusox/club_car_precedent.pdfIn PDF document text
    • http://legatuwaw.epizy.com/best_app_for_card_counting_android.pdfIn PDF document text
    • https://711920be-b761-4f0e-a604-762b26663b16.filesusr.com/ugd/ffcbea_0c83a89d637440dda1a29ffddc545893.pdf?index=trueIn PDF document text
    • http://rinubef.epizy.com/xaduxuxugarozuvisiv.pdfIn PDF document text
    • https://s3.amazonaws.com/mejifavo/lower_gi_bleeding_treatment_guidelines.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37f82f5a-36b1-488f-9b7d-23dc871c5495/lamborghini_gallardo_lp570-4_price.pdfIn PDF document text
    • https://d5fb4b5d-766d-4e54-ab1c-ecc61d2b7d82.filesusr.com/ugd/b0c8dc_b11e4a711f75491bb903bd00e0c37ca0.pdf?index=trueIn PDF document text
    • http://vavijiguzedimeg.epizy.com/financial_reporting_and_analysis_gibson.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f72a5616-af79-4a06-9d52-91ee23786ce1/93131029971.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_off0000f435.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF435 4892 bytes
SHA-256: 7ba63a2e1133d6cdf2a763f20f27d01cea2cd467564f3ec4aef9d824fbbc5437
font_01_sfnt_off000104e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104E0 10264 bytes
SHA-256: 5d0a6e10c199e8cdd08bee0a0346254c09d6a89fc3f3e5576c75e036dd8328d5
font_02_sfnt_off000127f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127F9 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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