Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b14f3a8c99ee78c…

MALICIOUS

PDF

69.2 KB Created: 2021-02-18 23:41:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: d550c026c165f5b9d2488eb5625ad88a SHA-1: f79d7b5e6ecae2b00e26585d23dd2de8e2635e58 SHA-256: 7b14f3a8c99ee78c0a40beaea4cb0bb142cddd320121638c85912fcddb9d8a92
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://crophysi.ru/wb?keyword=why%20my%20mobile%20hotspot%20is%20not%20showing%20in%20my%20laptop%20windows%207 In PDF document text
    • https://jedifubebevaze.weebly.com/uploads/1/3/4/8/134873515/2946319.pdfIn PDF document text
    • http://6gusevshop.space/chakram_jagamanta_kutumbam2lzd6.pdfIn PDF document text
    • http://paktum.pro/most_popular_black_male_haircutsk4enx.pdfIn PDF document text
    • https://binikefesomeb.weebly.com/uploads/1/3/5/3/135386190/5b8399d5.pdfIn PDF document text
    • http://znasila.ru/audiocodes_mp-114_fxs_firmwaremp6cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476750/normal_601da5ba505cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445866/normal_5fd666730e67a.pdfIn PDF document text
    • http://lady-bug.club/nokia_mobile_game_snake_xenzia_cheat_codesp3kkh.pdfIn PDF document text
    • http://ital-girl.space/nogivuzutokofarebebaku6h2s.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387036/normal_5ffb69191cf7b.pdfIn PDF document text
    • https://kopikemuv.weebly.com/uploads/1/3/0/7/130740389/jelawapobedanugipop.pdfIn PDF document text
    • http://keep-travel.com/25571435162v1bwd.pdfIn PDF document text
    • https://riganekonima.weebly.com/uploads/1/3/0/8/130874133/4469922.pdfIn PDF document text
    • https://fubareno.weebly.com/uploads/1/3/1/4/131482864/797403.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458125/normal_600674f28ad75.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_off0000cfbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFBB 5704 bytes
SHA-256: 537aaac8e6df4b4df547a3c972452363b0bd2e83de8df21b57a3247c8a49ae7e
font_01_sfnt_off0000e322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE322 10688 bytes
SHA-256: 112734ee9b3b25ad97ac253aa772c5bfde7920a1b124e763c0b2467012437cfc

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