Malicious PDF — malware analysis report

Static analysis result for SHA-256 6968462789626030…

MALICIOUS

PDF

80.4 KB Created: 2021-03-30 10:06:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f8a0a81ca4fe222f6d72de2547861adb SHA-1: dd6bceb47087c0055703281739c64ffc6f141664 SHA-256: 6968462789626030da8265d0cef3db7c95d51b54171c427ebd65d2b8edd3062d
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 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.
  • 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://gimoguvi.ru/wix?keyword=human+genetic+traits+worksheet PDF link annotation
    • https://cdn.sqhk.co/busumodofu/cghhaRN/analisis_dafo_ejemplos_empresa.pdfIn PDF document text
    • https://jedagafigi.weebly.com/uploads/1/3/1/4/131438055/nefusodeliwexur.pdfIn PDF document text
    • https://cdn.sqhk.co/dibitarebizu/H3ibUgh/57271786089.pdfIn PDF document text
    • https://cdn.sqhk.co/nasubivapu/idqqjdg/solutonofovexuwebewefofo.pdfIn PDF document text
    • https://cdn.sqhk.co/perekowemo/gdba3ge/bijepulasapaxakovebe.pdfIn PDF document text
    • https://cdn.sqhk.co/kivipemo/CsqibHb/duzibadufefubonatamarukez.pdfIn PDF document text
    • https://dolafevofi.weebly.com/uploads/1/3/5/3/135330218/1789207.pdfIn PDF document text
    • https://cdn.sqhk.co/zomulusiku/thb4hge/bein_sports_directv.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/bRUhg6T/82846746152.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
    • https://s3.amazonaws.com/babetafaperaxov/kiziromofoguk.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/how_much_does_a_criminal_defense_lawyer_make_a_year.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/waxijuva.pdfIn PDF document text
    • https://s3.amazonaws.com/nitizobuv/best_bosch_panel_ready_dishwasher.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9adcc9ae-5de7-4f00-a659-4904b518276f/xofujuv.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/sodevimodivexalofefuli.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2749e59-e43e-472c-ba9e-1b8ee4a0f83d/financing_balance_sheet_meaning.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a6dd70a0-6770-4700-a7b1-7f2896c82d49/gebinafigivolot.pdfIn PDF document text
    • https://s3.amazonaws.com/mogipegi/kubavapuroje.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/godmorgon_installation_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rekorewexidiwo/88797894918.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f18caade-e083-47f3-a276-8c856f06f185/37004898874.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF061 5180 bytes
SHA-256: 517de7f694864c5e400e5d6f9911ab00997b9fbc24bc2d89ef265bece300d46c
font_01_sfnt_off000101db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101DB 10584 bytes
SHA-256: 8804148fea302ad1cdb390532c4b9f68c67c6deb9e903539422bb8e415c4ed69
font_02_sfnt_off00012623.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12623 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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