Malicious PDF — malware analysis report

Static analysis result for SHA-256 175d900be02ff95a…

MALICIOUS

PDF

71.5 KB Created: 2021-02-14 15:12:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2f0e5057d1888a62d2f47bdf80d8f133 SHA-1: 241bc460d5cafdfc7441267c7d348cb8de9fd199 SHA-256: 175d900be02ff95aca7163bea5e3eef2a3846b9c27d41ec213d081e519e90d75
166 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
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://jottigo.ru/wix?keyword=salem+witch+trials+answers+key PDF link annotation
    • https://cdn.sqhk.co/wuvukidovime/rIrCVhb/16113375478.pdfIn PDF document text
    • https://cdn.sqhk.co/seseniluvus/gghfubr/69742610127.pdfIn PDF document text
    • https://cdn.sqhk.co/pabefidinaz/ihDmvig/idle_gun_range_merge_n_shoot_mod_apk.pdfIn PDF document text
    • http://cg-designer.xyz/90603990880g98y8.pdfIn PDF document text
    • http://moneyindia.site/cad_step_viewer_freenivxl.pdfIn PDF document text
    • http://managerprogram.live/aerox_3_wireless_sensorru1lx.pdfIn PDF document text
    • http://test123test.xyz/46551602304d4j3g.pdfIn PDF document text
    • http://2220202.ru/autentico_2_core_practice_answers7yg6r.pdfIn PDF document text
    • http://afracheat8.xyz/nature_of_national_interesty34bn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447914/normal_60054c9bccaf7.pdfIn PDF document text
    • http://xtrading.buzz/kibezutivazot2e01.pdfIn PDF document text
    • https://cdn.sqhk.co/gefimiwotux/syl3gj2/herpes_simplex_labialis_causes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454286/normal_5feec41c70d8c.pdfIn PDF document text
    • http://probkin34.xyz/anger_of_stick_5_hack_appvn5ug7v.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/purawuma/what_genre_are_endospore_forming_bacteria.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_off0000da40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA40 5400 bytes
SHA-256: 444829bb8d63802699768474dbacf0c41263dbd345530be14352a58d214b440e
font_01_sfnt_off0000ec85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC85 10600 bytes
SHA-256: 478c82853c3ae276b4ecacbd3874f18cc48e50d041aa317fe3bf7ecf4a5e38fe