Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c4555ead126b8cc…

MALICIOUS

PDF

78.4 KB Created: 2021-04-01 06:07:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: eb5e2e0feb339f6aae6410eb8ad4d4b5 SHA-1: 912f41817e5747450a963fb37b51782cba5fb70d SHA-256: 0c4555ead126b8cc362bf27b08429f95e492eaa93c8dcad972a9d73947e14bc5
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body, though heavily obfuscated, suggests a lure related to 'Louisiana purchase worksheets', likely to trick users into clicking the malicious links.

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
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://jumiwimov.ru/wix?keyword=louisiana+purchase+worksheets PDF link annotation
    • http://alania365.ru/nawopugimimofegojopwu1xy.pdfIn PDF document text
    • http://wetitafege.iblogger.org/job_adverts_examples.pdfIn PDF document text
    • http://azorocheat6.xyz/tilufirsbo4s.pdfIn PDF document text
    • https://cdn.sqhk.co/jutafegobexe/hghhjhE/golden_boot_premier_league_2019.pdfIn PDF document text
    • http://koolmaxt.online/jokesmq3cr.pdfIn PDF document text
    • https://mogomanazeveka.weebly.com/uploads/1/3/0/9/130969503/woxijisafutomo.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/glkiijh/37947139217.pdfIn PDF document text
    • https://cdn.sqhk.co/luwesefizi/0b6qwhf/19599145472.pdfIn PDF document text
    • http://zokazurimila.mygamesonline.org/xenizozunesukenixorigu.pdfIn PDF document text
    • https://vilamewu.weebly.com/uploads/1/3/0/7/130775649/7896954.pdfIn PDF document text
    • http://melivoxigozige.mypressonline.com/tnusrb_psychology_questions.pdfIn PDF document text
    • https://fefokivaz.weebly.com/uploads/1/3/0/7/130776727/nezinelowadowig.pdfIn PDF document text
    • http://mailedflkf.site/stanley_0-tre550_electric_staple_nail_gunh4prj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zovoxasus.rf.gd/surah_al_mulk_dan_artinya.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/423510da-db9a-4caa-830a-fb92a137f970/gazonurukiwezelagix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f1f7fae-5680-4568-bd42-5a02a4806cda/550159828.pdfIn PDF document text
    • http://kukuvil.epizy.com/53181597714.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40fdea10-f126-4068-9e97-b3c19ad3b8f2/wunanerutokarenaguwuvexum.pdfIn PDF document text
    • http://xegebasitez.rf.gd/84212490202.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1dd64046-593b-4d7b-a0bd-ad7a4ae157ac/sonicwall_tz_200_reset_to_factory_defaults.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e517.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE517 3396 bytes
SHA-256: 9542a116d138b265c4882f9113d19e3c4f43916f31be220c94b7e8e87dc6e563
font_01_sfnt_off0000f13d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF13D 5088 bytes
SHA-256: 003c5c7ce8cfe5ead9913d977023f274adc852c54186df7a52b29446ae7dcb59
font_02_sfnt_off0001029b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1029B 12368 bytes
SHA-256: bb979519ce4b6fbd0414df43f1a65d7f29b3e1779e246ef2b20f16eb9c69cc28

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