Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a96cc7fb62c3542…

MALICIOUS

PDF

74.9 KB Created: 2021-03-31 23:43:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 44a2d2efbe33f13d9f85bd2c5d100f81 SHA-1: d7e18976a30ee1d18227799a77db797489610265 SHA-256: 8a96cc7fb62c354236cff1fc6a04a06f1bef6805a7d5b70ccb319c6c3815ca40
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains numerous embedded URLs, with a prominent one pointing to 'jumiwimov.ru', suggesting a phishing or malware distribution attempt. Heuristics indicate it's a link farm on disposable hosting, and ClamAV detection confirms it as a phishing trojan. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious intent, likely to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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/123?utm_term=online+video+format+converter+mp4+to+mov PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4402949/normal_5ff797b430d76.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386591/normal_601f9c3d09778.pdfIn PDF document text
    • http://itdiscount.info/47326700853bhihy.pdfIn PDF document text
    • http://blablablacar.online/28941654472d6wi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367640/normal_5fd12b7adb798.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453890/normal_604cd715e6ed6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390664/normal_603f7cf9efc7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375093/normal_60107f82077a7.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/eye_of_the_beholder_game_boy_advance_walkthrough.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445544/normal_604b54951462a.pdfIn PDF document text
    • https://s3.amazonaws.com/legapatatezisa/dota_2_guide_indonesia_bane.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372085/normal_601495b3e8a51.pdfIn PDF document text
    • https://s3.amazonaws.com/zexozavo/8090590488.pdfIn PDF document text
    • http://secret-empire.ru/dave_ramsey_books_to_read_in_ordergo9ji.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374522/normal_5ffcfdbf34d63.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/butaji.pdfIn PDF document text
    • http://indital.fun/how_to_write_a_narrative_essay_about_overcoming_a_challenge3n5qg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484805/normal_600b9386ccdf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484633/normal_6033d26f7a264.pdfIn PDF document text
    • http://hisgohar.site/samsung_32_1080p_hd_smart_tv_un32n53006w9y1.pdfIn PDF document text
    • http://microbladingcertificationdfw.org/muvosabugajatesxekuc.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

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_off0000e6b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6B9 5300 bytes
SHA-256: fad480b3d12474c6e32c6a1acad9b1dfd17b6ff180e5197e1e0629aff1b032c5
font_01_sfnt_off0000f8b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8B6 10996 bytes
SHA-256: 651d2f801050208bff8bda2b24a456ba7d46b4370b1f4db8f25f8e30d007bc3f

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