Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0d11583a3a88a62…

MALICIOUS

PDF

79.2 KB Created: 2020-11-11 03:39:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 726278adbb03625fdea192db33cfab03 SHA-1: 4f1be1204616938c04a40bff992ab0b9d22ec881 SHA-256: d0d11583a3a88a628a0bf7ee6e1392b298d084b1261ac7f50adf2cefa401be0e
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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?keyword=florida+virtual+reality+school In PDF document text
    • https://kilejotiwig.weebly.com/uploads/1/3/1/4/131406519/a9278cdf128656.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365562/normal_5f874f3dc8935.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491152/normal_5fab1e33d4d88.pdfIn PDF document text
    • https://fijefozumomaba.weebly.com/uploads/1/3/4/4/134491855/bofur.pdfIn PDF document text
    • https://jotevalosovem.weebly.com/uploads/1/3/4/3/134385082/211ceca.pdfIn PDF document text
    • https://nipaxibovaj.weebly.com/uploads/1/3/1/3/131379211/5208618.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/56e814fe-ac50-43c6-b185-c303075dd1ae/mefelawodabiziseki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/876c05c8-eea2-4e2b-a1fc-5df22fc984d1/sufegurafip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/504fb6bc-78ff-4dfa-a23b-0dbb66ef3f7e/dadiduzukonodedim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5cc5517-6145-46e6-89e8-27c5f1b00bf7/86498449095.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de15e039-884d-4328-b108-aa0b93783d96/dream_car_racing_hacked_unblocked_77.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ebea4f53-6f83-412e-8e8b-c5300b47e295/4825426881.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73292b2c-b81d-4ae9-96c1-c397f4583082/60148313042.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_off0000fa89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA89 5144 bytes
SHA-256: 78302151fce4f5d5f7a1db3b5ac54aa17797f7c480e6e65aa1b4d5d84c1649bc
font_01_sfnt_off00010c0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C0E 10512 bytes
SHA-256: ac09c032f23ec92fb99078ec51e954e15cc375c12d56a5f11b325e4d597101a0