Malicious PDF — malware analysis report

Static analysis result for SHA-256 14e5552b17a202d3…

MALICIOUS

PDF

74.3 KB Created: 2021-01-22 16:20:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 279ebce6c208cf6a1d858bedf7458a07 SHA-1: b7f15aa8689dcf5d16a067ae70dd4eb7009861ea SHA-256: 14e5552b17a202d37eb80268a4d507f50f4b7aff69aeb0c989e0eb048929566b
294 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Fake encrypted/secure-document view lure high SE_ENCRYPTED_DOC_LURE
    Document claims to be an encrypted or protected file that must be opened through a 'secure view' link, and the action link uses deceptive infrastructure. This is the secure-document credential-phishing carrier: the page imitates a secure-mail / document-cloud gate while the link leads to a harvesting site. action link to abused redirector.
  • 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://ggtraff.ru/wb?keyword=u%20mobile%20service%20centre%20seremban%20number In PDF document text
    • https://ganepivojo.weebly.com/uploads/1/3/4/7/134774155/91ecdc62bfe2379.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378856/normal_6006e738dcb92.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415929/normal_5fdf5f7c82a95.pdfIn PDF document text
    • https://site-1185297.mozfiles.com/files/1185297/spider_solitaire_card_game_app.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369306/normal_5ff784516a96f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372740/normal_5fe8b91dee36a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425492/normal_5fea35456b134.pdfIn PDF document text
    • https://gonufefimexej.weebly.com/uploads/1/3/4/8/134892828/lodugevoziro.pdfIn PDF document text
    • https://site-1174515.mozfiles.com/files/1174515/60471349169.pdfIn PDF document text
    • https://kovofogigexu.weebly.com/uploads/1/3/1/8/131856149/61238.pdfIn PDF document text
    • https://nudabixe.weebly.com/uploads/1/3/4/5/134505388/zelajuf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4444123/normal_5ff4cf140c510.pdfIn PDF document text
    • https://sosufafa.weebly.com/uploads/1/3/4/8/134862430/dc0291833b16f8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461481/normal_5fe0a7f12a6a9.pdfIn PDF document text
    • https://mifanupomiseri.weebly.com/uploads/1/3/2/6/132681757/gejokizovere_gutuwin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dbe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE1 5136 bytes
SHA-256: b42e586f20e18464b19d75b104fea79e62886ec06518e86a706fe4fd431a85a6
font_01_sfnt_off0000ed47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED47 15108 bytes
SHA-256: 271d5b5e3d035b608613a205b8c3790ef18f02a8e5d4fe011637a4803a43cc3a