Malicious PDF — malware analysis report

Static analysis result for SHA-256 98b94d93c7b17cf1…

MALICIOUS

PDF

64.4 KB Created: 2020-12-25 06:20:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 20b83c6cc284e39df27ff147db9cb3bd SHA-1: 268fce6fb66e7c7e02d39b005132576fd8a7bc64 SHA-256: 98b94d93c7b17cf1f9b4577935254521e982be3b18bb919333bc36c8df74886c
244 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains a large number of embedded URLs, many of which point to disposable hosting services and redirector infrastructure. The primary URL, 'https://ggtraff.ru/123?utm_term=bad+moon+movie+poster', is flagged as malicious. The document's structure and content suggest it is designed to act as a link farm, likely to distribute phishing content or malware, aligning with the ClamAV detection of 'Pdf.Phishing.Trojan'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 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.
  • 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://ggtraff.ru/123?utm_term=bad+moon+movie+poster In PDF document text
    • https://zugasemoz.weebly.com/uploads/1/3/4/5/134593751/furefozep.pdfIn PDF document text
    • https://digafixi.weebly.com/uploads/1/3/0/7/130776371/famepokuboza.pdfIn PDF document text
    • https://cdn.sqhk.co/zezoxomop/bn4ghgP/beaumont_texas_civic_center_events.pdfIn PDF document text
    • https://cdn.sqhk.co/pimibopugugo/gigcVjd/brutal_street_2_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/zikegasenar/hahhEig/27041390440.pdfIn PDF document text
    • https://nozijuga.weebly.com/uploads/1/3/4/6/134698325/76ff2ca780.pdfIn PDF document text
    • https://cdn.sqhk.co/mefomixut/ghd95if/jefikizogokolupamabeg.pdfIn PDF document text
    • https://vevejeda.weebly.com/uploads/1/3/0/7/130776099/86bd3b89c294ae.pdfIn PDF document text
    • https://mitanifujokuvu.weebly.com/uploads/1/3/0/9/130969645/ruxiwun-modedubev.pdfIn PDF document text
    • https://gugabezari.weebly.com/uploads/1/3/4/5/134577353/acccfd0e4c990d.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/xelimewat/xonajin.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/genevafudizop.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/1939060946.pdfIn PDF document text
    • https://s3.amazonaws.com/fomudebipefasu/nox_android_emulator_free.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c06d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC06D 5180 bytes
SHA-256: 2fa128cdfd36483a20a6148d3f94dad43c088780a47fc9014375827a27917f62
font_01_sfnt_off0000d1fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1FC 10212 bytes
SHA-256: 2f1efe57715b0c5eda58cb8a87b9e3e72b4690adaf1e369da3bba8121f6a3c63

Open this report in the interactive analyzer, or submit your own file for analysis.