Malicious PDF — malware analysis report

Static analysis result for SHA-256 de5c5f908dd0ad18…

MALICIOUS

PDF

76.2 KB Created: 2021-01-21 08:15:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: e4755c7c41bcd44e2a9b9accf124f0bd SHA-1: 03d796bfe4ec2baa58280c42473eb9a1247c2317 SHA-256: de5c5f908dd0ad18a435e23649966691831f6684c6ab9d85957ca8adc666647b
254 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://gettraff.ru/aws?utm_term=acrobat+reader+8.+1.+2 In PDF document text
    • https://cdn.sqhk.co/xadowififux/ihjf0hd/cruise_ship_tycoon_strategy_guide.pdfIn PDF document text
    • https://zeteparikimifol.weebly.com/uploads/1/3/1/6/131637109/8241347.pdfIn PDF document text
    • https://timijajuvage.weebly.com/uploads/1/3/2/6/132683040/todufetisevovo.pdfIn PDF document text
    • https://jexuleni.weebly.com/uploads/1/3/1/6/131637506/vixewumamebize.pdfIn PDF document text
    • http://topepuxabi.iblogger.org/ignou_admission_form_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/vumorumuvogi/AQ4Rnge/nvidia_physx_software_for_games_free_download.pdfIn PDF document text
    • https://judavolegarar.weebly.com/uploads/1/3/1/8/131871921/603e3e3450a9d.pdfIn PDF document text
    • https://cdn.sqhk.co/tefulobesa/hhVuFiA/8384760167.pdfIn PDF document text
    • https://cdn.sqhk.co/joraxeneli/hhbOhcm/tie_dye_shirts_diy_easy.pdfIn PDF document text
    • https://sazuwigigaxav.weebly.com/uploads/1/3/1/4/131407293/fubafovipisas.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/megujobemegor/15927050137.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/ditekuzajuxejoxegobekifag.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/bojisikiriremubixufofowis.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/online_marathi_books_free.pdfIn PDF document text
    • http://duvewukabiwetu.epizy.com/71356262030.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/xepira.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/classical_dance_hd_photos.pdfIn PDF document text
    • http://wepaxilex.epizy.com/org_chart_template_visio_free.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC95 5260 bytes
SHA-256: 19b73eb3af090472108af01889ffae59ce0dc6baeb96d43b9166097867dff718
font_01_sfnt_off0000fe8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE8E 11012 bytes
SHA-256: 9976b333428460b8b9ae1251d5c4c33aa7ad7507d99cef8337b4274a715208b6

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