Malicious PDF — malware analysis report

Static analysis result for SHA-256 5332bcfeb08e246a…

MALICIOUS

PDF

92.7 KB Created: 2021-03-21 08:07:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 55b64a4640c301bfd42c687d56a0e96e SHA-1: 775907168182f99c7a1d478109ef502c64eea940 SHA-256: 5332bcfeb08e246a877547cdaff976e9ec9bc8e2ca3a515b198fcaa56b1f89ce
126 Risk Score

Malware Insights

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

The PDF contains numerous links to external websites, including suspicious domains like botokaw.ru and azakalaza5.xyz, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://botokaw.ru/wix?keyword=student+exploration+hurricane+motion+answer+key PDF link annotation
    • http://azakalaza5.xyz/hepatitis_a_2019j1ooj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468530/normal_60104a00b2a6c.pdfIn PDF document text
    • https://cdn.sqhk.co/xubipoxeguza/LfhgZjb/super_smart_battery_tender_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412768/normal_5fe9cf0bab678.pdfIn PDF document text
    • https://cdn.sqhk.co/mikedeto/ggid45I/proform_cardio_hiit_trainer_pro_elliptical.pdfIn PDF document text
    • https://cdn.sqhk.co/vebiziwob/4gfc4m2/extreme_car_simulator_mod_apk_all_cars_unlocked.pdfIn PDF document text
    • https://cdn.sqhk.co/zanudiwageg/BJhjahe/mojezubebinetupuvowiluwid.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388060/normal_60385d025001a.pdfIn PDF document text
    • http://insuranceautousa.com/how_do_i_verify_medicare_part_b_coverageo4617.pdfIn PDF document text
    • http://noxodexuvalolum.iblogger.org/ciclo_de_vida_de_bemisia_tabaci.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453885/normal_604755d0ac224.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391013/normal_5ffcfed8aaba6.pdfIn PDF document text
    • https://cdn.sqhk.co/rirerujel/doJwahd/gadiduz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f25f538-c929-40b0-a96c-441402dacc35/xenolamefoxaxino.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/521d0cb9-9a87-47a3-a2cd-b263e0ab7088/varizerekuxesodovibuje.pdfIn PDF document text
    • https://s3.amazonaws.com/nilititonawafim/indian_sports_tv_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/fun_day_itinerary_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed2dce51-6fe5-4755-a410-2a032ae2b1ef/dajiteparoduwise.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/jovufusalinokawokam.pdfIn PDF document text
    • https://s3.amazonaws.com/nodetuxapabara/gst_annual_return_form.pdfIn PDF document text
    • http://weralawubuzeg.epizy.com/applied_mathematics_3_information_technology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ee9f26a-5de3-4925-b48c-eb9530d93ebf/convert_polyphonic_audio_to_midi_logic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e503386-d2b4-46d6-b90c-94cb4d11a249/verudunubazosole.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_off00012b87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B87 5740 bytes
SHA-256: b362e56b55ed908862679abb0e370a7b7fe8c785cb5639244c62fe4f1a3e84d0
font_01_sfnt_off00013eff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EFF 11288 bytes
SHA-256: 737ef5b2e1789efdeef182c368b2ade47d3f876ede3ecbabe0c41eb6b9bab73e

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