Malicious PDF — malware analysis report

Static analysis result for SHA-256 b29722d94a6d8774…

MALICIOUS

PDF

74.9 KB Created: 2021-01-19 03:21:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: 97bae18662a4a7806a94d8966e1e018b SHA-1: a9f15e856f7d86ecd94dc345f9874feb72fc1455 SHA-256: b29722d94a6d8774594aeafafdb8b9f79922563f6ca2a982639fde3ddbb9faa3
244 Risk Score

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/shook?utm_term=solar+system+planets+revolve+around+sun In PDF document text
    • https://cdn.sqhk.co/kukusagufo/jGojdjc/jitewoziraterexek.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/gcJjdhh/destiny_child_mobile_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/bgg0jiU/nesupezatasosus.pdfIn PDF document text
    • https://losanuritajog.weebly.com/uploads/1/3/4/7/134730792/337200e2cfed.pdfIn PDF document text
    • https://cdn.sqhk.co/vakenuda/jeQ7z8w/xanimuralovobexajuxinoru.pdfIn PDF document text
    • https://fezulenigi.weebly.com/uploads/1/3/4/4/134485980/4127400.pdfIn PDF document text
    • https://cdn.sqhk.co/guviterolovu/a6gdSgu/26898800605.pdfIn PDF document text
    • https://kexinebig.weebly.com/uploads/1/3/4/3/134338338/b5db0.pdfIn PDF document text
    • http://lemixebu.22web.org/shaco_aram_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/sijoputolu/Zvhjr4t/39396182110.pdfIn PDF document text
    • https://cdn.sqhk.co/fujonexa/Dic7Sjg/48458462225.pdfIn PDF document text
    • https://pobezewimo.weebly.com/uploads/1/3/2/6/132681951/1230516.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vomotoboxavixot.epizy.com/grow_sea_of_green_guide.pdfIn PDF document text
    • http://binuxusegewake.epizy.com/ipmn_fukuoka_guidelines_2018.pdfIn PDF document text
    • http://karifopiti.epizy.com/37045267336.pdfIn PDF document text
    • https://s3.amazonaws.com/tapexiw/argos_catalogue_1985.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/work_schedule_blank_template.pdfIn PDF document text
    • https://s3.amazonaws.com/juzowilipi/27829993486.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_off0000e750.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE750 5368 bytes
SHA-256: 626131aa7fc41be74ee3c6d2a4fff4ad85c74a519c65e1bae6a25eb0d3226af8
font_01_sfnt_off0000f985.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF985 10716 bytes
SHA-256: bae36a4df4617f3adce3be4fd8e97ca7cd8638e4ff8fc8d9f41182a9a5226baf

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