Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c119863d23559e5…

MALICIOUS

PDF

100.2 KB Created: 2021-03-05 07:08:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e4fd7b850b9400e4fe204ac98fec09ca SHA-1: f4e1414ede65451604bb34a3f6893615b1fc0693 SHA-256: 3c119863d23559e50ee84fdfa4f058ceb7b143cee4acb46c864292c6624ad38d
134 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URIs pointing to disposable domains and link farms, indicating a phishing or malware distribution attempt. The presence of a 'download button' heuristic further supports the malicious intent of luring users to download a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://botokaw.ru/wix?keyword=alum+lab+ap+chem+answers PDF link annotation
    • https://wufodiwefoveve.weebly.com/uploads/1/3/4/8/134891768/1929923.pdfIn PDF document text
    • http://astrohelp.space/mmpi_2_fbs_scale_interpretationsg4jm.pdfIn PDF document text
    • http://baffer-shop.space/lyrics_adele_-_hello_audiotj4op.pdfIn PDF document text
    • http://lotto-investclub.com/gujarat_mitra_surat_epaper_date_wisegu3zl.pdfIn PDF document text
    • https://fenikazegalo.weebly.com/uploads/1/3/1/3/131379965/magega-sedugituwif-zomenoraxag-batusifusixi.pdfIn PDF document text
    • http://graatorama.fun/musical_word_search_puzzles_printable_for_adultsm2bxh.pdfIn PDF document text
    • https://jaweditulopo.weebly.com/uploads/1/3/4/3/134313576/lapitepuma_sanikan_mokexi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496592/normal_6023f4b45baf6.pdfIn PDF document text
    • https://fesomexipilajuj.weebly.com/uploads/1/3/3/9/133997099/dotixirubibub_semexudesuput_xodedewuva.pdfIn PDF document text
    • https://s3.amazonaws.com/papuja/zusosimelekefajimuvo.pdfIn PDF document text
    • https://cdn.sqhk.co/gibuburi/hdQRheX/34.pdfIn PDF document text
    • https://s3.amazonaws.com/janodojivi/27619910432.pdfIn PDF document text
    • https://s3.amazonaws.com/setikizo/32072429416.pdfIn PDF document text
    • https://cdn.sqhk.co/lawotivu/zaVCjh3/92192111318.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414172/normal_5ff8a2acaf172.pdfIn PDF document text
    • https://s3.amazonaws.com/falevi/18413872747.pdfIn PDF document text
    • https://karujelibofab.weebly.com/uploads/1/3/1/4/131406149/binopaxajub.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451760/normal_5ff917a7024d6.pdfIn PDF document text
    • https://tatogupuragafa.weebly.com/uploads/1/3/4/0/134096405/rexiziw.pdfIn PDF document text
    • http://ch-data-2a8fv9s.pw/felorijap55mkw.pdfIn PDF document text
    • https://cdn.sqhk.co/jaselavujuwi/Ahdjbhe/volofevelufujosokenerifo.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/9580667333.pdfIn PDF document text
    • https://cdn.sqhk.co/sevafeluba/jjChejj/xefuketumofufan.pdfIn PDF document text
    • https://lalojitewimagix.weebly.com/uploads/1/3/5/3/135304200/zijudelupi.pdfIn PDF document text
    • https://cdn.sqhk.co/bujasugawo/IijjhD8/28348104385.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013d1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D1E 5040 bytes
SHA-256: 94f9f046a1094701c4ba25958ee7e1dd00cca0368d2b84c590d15a948c53f473
font_01_sfnt_off00014e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14E0D 11908 bytes
SHA-256: cc98c2ff9de7ee6eb9ad5d0fe9eec86e5bcfa2ec90597387dc979aeec63b280a
font_02_sfnt_off000174a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x174A5 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34