Malicious PDF — malware analysis report

Static analysis result for SHA-256 e063b1972ee97fe5…

MALICIOUS

PDF

73.4 KB Created: 2021-02-14 11:11:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 69473acf4f441233d09818862eaf46a7 SHA-1: c1ee0d40314d0e338fe37d4fc8aeb274efcf754b SHA-256: e063b1972ee97fe529bd6309cca6d81c1005c882e023a209703862a9f0e1ecf6
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • 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://druttle.ru/wb?keyword=burnout%203%20takedown%20pc%20highly%20compressed PDF link annotation
    • https://cdn.sqhk.co/fuvepelela/axGhijb/original_pong_video_game_value.pdfIn PDF document text
    • https://cdn.sqhk.co/zanemulazif/cgebfRY/nitotovujoxolegiludewujo.pdfIn PDF document text
    • https://kixarazebeda.weebly.com/uploads/1/3/0/7/130776474/6896980656.pdfIn PDF document text
    • https://cdn.sqhk.co/detateseb/iiXJW0O/23069767384.pdfIn PDF document text
    • https://cdn.sqhk.co/texafikogot/hgvvKii/3072775970.pdfIn PDF document text
    • https://nakafafokebupop.weebly.com/uploads/1/3/1/4/131437029/voligu-naleputoz.pdfIn PDF document text
    • https://galanopudaxu.weebly.com/uploads/1/3/4/1/134109153/lijalowujebuzi.pdfIn PDF document text
    • https://cdn.sqhk.co/zativojor/ijzlihd/lamifazofukuv.pdfIn PDF document text
    • https://cdn.sqhk.co/xubipoxeguza/Rghiahe/49534035033.pdfIn PDF document text
    • https://cdn.sqhk.co/nebinefis/Njjidif/67668561549.pdfIn PDF document text
    • https://jexafowasefuxuv.weebly.com/uploads/1/3/4/5/134588667/3743840.pdfIn PDF document text
    • https://cdn.sqhk.co/piwizogir/egejcia/designing_my_dream_home.pdfIn PDF document text
    • https://cdn.sqhk.co/pasojixaju/jh0OxtC/jifiladenudumeronupap.pdfIn PDF document text
    • https://cdn.sqhk.co/zukuxenopo/fo1VHgg/jedonojugekeloge.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/lixisariwulo/jedepusexipafenivada.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_off0000dd6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6D 5960 bytes
SHA-256: 93bb2684d19746229349e6d962318c628946d4f94930ec3ab94433bea59d26e7
font_01_sfnt_off0000f1ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1AB 11856 bytes
SHA-256: f8e40c38a782bbd2970024f7f2272671462d1a5f2fd216ce4728fc48fe8e71de