Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a07ed433506e985…

MALICIOUS

PDF

70.5 KB Created: 2021-03-05 14:13:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: cb4e3ea98b3a8afe8a089c1106c1b74f SHA-1: ca10d63b1dc1095cc817f80a382e5c9a0d37e13b SHA-256: 2a07ed433506e985e6641775c785c8eaf2ba18e3cdb82519580470ae7cf10c9a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ponafet.ru/wix?keyword=trig+ratio+worksheet+kuta PDF link annotation
    • https://jalidinetuvumun.weebly.com/uploads/1/3/5/3/135333814/laxaxewi-lazori.pdfIn PDF document text
    • https://cdn.sqhk.co/pobopuwubox/WYFriim/refidufejajuv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386605/normal_6007a8b893aca.pdfIn PDF document text
    • http://kuvuradivikosef.iblogger.org/weraporusokegato.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454301/normal_5feaf3bbbbf86.pdfIn PDF document text
    • https://cdn.sqhk.co/vazoguzo/3kjhYij/eggplant_dip_bon_appetit.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456398/normal_5fd96f81597e2.pdfIn PDF document text
    • https://ganuwikudafo.weebly.com/uploads/1/3/0/7/130775291/tened_buwemafejuni_vevaso_fofogilipede.pdfIn PDF document text
    • https://cdn.sqhk.co/lezubenewago/jSgjijE/76987707035.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408589/normal_6041cf70e81d4.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/0f6886fe-ea17-404b-80e6-f26542033a12/45290884765.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd82729a-612c-4a90-881b-23d6331f0962/56569317990.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/373e40df-8732-4f7c-bc33-f53214a5479e/how_much_do_ccna_get_paid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d004ecbc-2812-47fd-8c5c-c593672cfd59/husqvarna_445_carburetor_cleaning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d20ca03-5a59-45c9-868e-888a2dca73b0/31624064999.pdfIn PDF document text
    • http://pabaxonewopux.epizy.com/mixed_approach_research_design.pdfIn PDF document text
    • http://kevulapoxokimif.rf.gd/79189181861.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/228ab179-219a-485f-a7ec-890967d4982f/dawadoxogene.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95809ddb-1586-43e1-8f87-1de9e4bd3ecd/burger_king_zutaten_allergene.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_off0000d9c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9C1 5020 bytes
SHA-256: 239944531698ede6079e63bae17d96a43c76fcc091a5ff19ea6cba5fabaff6f4
font_01_sfnt_off0000eae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAE5 9916 bytes
SHA-256: 713123340f6c418c46e00d8755c849abf3b5c91cd8a160c2606745645a7a8d6a