Malicious PDF — malware analysis report

Static analysis result for SHA-256 83003e1817a9b074…

MALICIOUS

PDF

62.7 KB Created: 2020-11-10 21:39:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: d3c231a1240fa59a9cb193904371f76f SHA-1: b271b4508e7b1ce7d4d8afe0f4f14327482e692e SHA-256: 83003e1817a9b0741c076761b3046af527d2cd3822b618449e61af6f98f8488e
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://traffking.ru/aws?keyword=66+unblocked+games+earn+to+die In PDF document text
    • https://tojuseviru.weebly.com/uploads/1/3/4/5/134513446/8dbcef7b9bf6a5.pdfIn PDF document text
    • https://roxejane.weebly.com/uploads/1/3/4/4/134486752/8246205.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388421/normal_5f920662d25a0.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/dinisemowoge/dujiruwokes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98e7af21-cdd8-4914-bf8f-a549c0253883/steak_n_shake_nutrition_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3967e19-a7c7-4542-97a2-b178c8d698b5/ridudivopugelobik.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f9b458f-e1d9-4783-826d-d023a6355b95/36796218637.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/223c3e3b-251a-4567-9e33-063361e852f0/ditotedikeden.pdfIn PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/vetodugafonaf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8969592a-7043-4f04-bb52-76e99fc218d5/javafilajukorofegonine.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4766ef4c-6308-4172-8e5f-5f6700e946e7/nokirisuxupaguvutaja.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/94410787225.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/rolajumowidem.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/sivuj.pdfIn PDF document text
    • https://s3.amazonaws.com/zalomi/wuvesapututileni.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB839 5524 bytes
SHA-256: 139575c8118d7779e75b4e6e392344c854018f2eac95a384a1b0ed39ad080e13
font_01_sfnt_off0000cae3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAE3 10288 bytes
SHA-256: 9b18692db57f48a3f99fbd6a5aa04b49d3bb7cacb57c4e7115a6be1341ebab19

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