Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a2ae32d3016e531…

MALICIOUS

PDF

69.4 KB Created: 2021-02-22 01:47:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 2c6f6fcfb738a1a8d653affc9cb515f0 SHA-1: abcd4ac7c8988e709bf6cfa76103b293dd5e53ae SHA-256: 0a2ae32d3016e53106184d42a6272dd6eefca47f534cb4a024a7e444331ddb01
184 Risk Score

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=pro+asp.net+mvc+5+client+development+pdf In PDF document text
    • http://jixuvofariva.iblogger.org/south_park_the_stick_of_truth.pdfIn PDF document text
    • http://gomededow.22web.org/79301004620.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449184/normal_600d05690895c.pdfIn PDF document text
    • http://begetus11ppz.xyz/english_modal_auxiliary_verbs_manik_joshib2no2.pdfIn PDF document text
    • https://jasitonil.weebly.com/uploads/1/3/4/0/134096785/muvevi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gunololidomip.rf.gd/rigunusuzowulika.pdfIn PDF document text
    • http://fejoguxufipen.epizy.com/vavopamomonezedaripamedet.pdfIn PDF document text
    • http://nodixuzotegiv.rf.gd/big_little_lies_cast_season_1_episode_5.pdfIn PDF document text
    • http://marivugedada.epizy.com/40959797534.pdfIn PDF document text
    • http://gisaxuzarufol.epizy.com/13704230494.pdfIn PDF document text
    • http://pixutixiziv.epizy.com/economic_development_corporation_canada.pdfIn PDF document text
    • http://lezuwibo.rf.gd/35436244869.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_off0000d3e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3E0 5520 bytes
SHA-256: e36130e6257ed35da78a21e2c251277e0653980d01e0fcb6e012eaa60a719b53
font_01_sfnt_off0000e6a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A2 10032 bytes
SHA-256: 6003b344864713104830692d5fec71b5c32fbe418c9758b9705219614f1b193e