Malicious PDF — malware analysis report

Static analysis result for SHA-256 2acb5fd9201aa2a6…

MALICIOUS

PDF

68.2 KB Created: 2021-02-05 11:42:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5f85f71c697e6192bfdf36d6d2a5b857 SHA-1: 1bc1fd0b3c2ff1288fd11feecb2f92547e3c4bbd SHA-256: 2acb5fd9201aa2a62efcb470ad1be9bcafabd66f286b783383392c9778a75a3a
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://crophysi.ru/123?utm_term=decree+of+spite+poe In PDF document text
    • https://notaxivarem.weebly.com/uploads/1/3/4/6/134633458/7961102.pdfIn PDF document text
    • https://sobexezawatu.weebly.com/uploads/1/3/4/9/134903145/pewebapiviz.pdfIn PDF document text
    • https://kunugamonigosa.weebly.com/uploads/1/3/1/8/131871761/zutire.pdfIn PDF document text
    • https://cdn.sqhk.co/kugefiruxat/hjTwaRO/tile_store_near_me_open_today.pdfIn PDF document text
    • https://rutosediwuxi.weebly.com/uploads/1/3/2/8/132814231/zejiv.pdfIn PDF document text
    • https://cdn.sqhk.co/fujalapevame/afTaje1/amazon_alexa_echo_dot_3_setup.pdfIn PDF document text
    • https://cdn.sqhk.co/miseseren/hijf7Dr/16017806505.pdfIn PDF document text
    • http://uggi-ugg.com/idioms_and_phrasal_verbs_advanced_free_download97sjq.pdfIn PDF document text
    • https://jizufuvarax.weebly.com/uploads/1/3/1/1/131164460/tobep.pdfIn PDF document text
    • https://cdn.sqhk.co/xuzuvazol/DNSk7ji/lucky_draw_cod_mobile_season_11.pdfIn PDF document text
    • https://cdn.sqhk.co/monazaxumol/9jfW6QR/manor_cafe_hack_mod_apk_download.pdfIn PDF document text
    • https://vokedovewugom.weebly.com/uploads/1/3/5/3/135349322/wotoliku.pdfIn PDF document text
    • http://1xbet-registr.site/28796884152gszqi.pdfIn PDF document text
    • https://bukodagunotul.weebly.com/uploads/1/3/4/0/134012399/6089929.pdfIn PDF document text
    • https://cdn.sqhk.co/sepetuvab/iiTEn2s/14670944534.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/radubozufiwo/nist_definition_of_cloud_computing.pdfIn PDF document text
    • https://s3.amazonaws.com/zafijukopa/server_dell_r730_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/bezosir.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_off0000cd6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD6E 4764 bytes
SHA-256: 4eaeb5fc7cf5b4355f77747805bf10c84b1273c18f6868611bce7ae64768818a
font_01_sfnt_off0000ddc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDC4 11232 bytes
SHA-256: 848cb88328e2eef6d5708c79a8a5c0161892dd5455057efa9e05e0472f88f2fa