Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbeb2b6860e3c1e3…

MALICIOUS

PDF

64.6 KB Created: 2021-02-22 01:00:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 383bb317f977be29cd2f1a6dcee475c9 SHA-1: c75e58862d5ff7dfad5d61a2aaf46a6dd812a0f1 SHA-256: dbeb2b6860e3c1e3911643516c96621b8ee1302257607ce188f32246362274fb
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://bologen.ru/wix?keyword=directv+h24+receiver+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4377113/normal_5ffdea0f6b218.pdfIn PDF document text
    • https://cdn.sqhk.co/fivuwunar/iQx7YU0/stay_alert_stay_alive_victoria.pdfIn PDF document text
    • https://cdn.sqhk.co/gobuwovuv/iaghEgc/call_of_mini_zombies_apk_ios.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382617/normal_5fe5d1cab4bcc.pdfIn PDF document text
    • https://tewukowil.weebly.com/uploads/1/3/2/7/132741555/vekez-risoxorijilodaz.pdfIn PDF document text
    • http://kulinar2020.site/are_powerbeats3_waterprooft6ubf.pdfIn PDF document text
    • https://vakinora.weebly.com/uploads/1/3/1/8/131857586/e4be8f.pdfIn PDF document text
    • https://jebasiju.weebly.com/uploads/1/3/1/3/131381450/fc65e.pdfIn PDF document text
    • https://kexanitafax.weebly.com/uploads/1/3/0/8/130813084/49d5afe07.pdfIn PDF document text
    • https://vajubepodeno.weebly.com/uploads/1/3/0/7/130776779/2847751.pdfIn PDF document text
    • http://antonioita.fun/lucie_streaming_vf0k5q6.pdfIn PDF document text
    • https://cdn.sqhk.co/jagojixego/jgoxoAM/norse_mythology_vs_greek_mythology_essay.pdfIn PDF document text
    • https://bexoligimes.weebly.com/uploads/1/3/4/3/134314561/5155886.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000c217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC217 5140 bytes
SHA-256: 2908ff050114e28b12d546cd872347703e5b53944459642de7b1907447dca60d
font_01_sfnt_off0000d37c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD37C 10100 bytes
SHA-256: d80dc9abafe69d8b5617ca8a97f02910c78a736808709fea26bea72e61be784f