Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4b429c599315ea0…

MALICIOUS

PDF

34.9 KB Created: 2020-10-28 17:53:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-10
MD5: 63d63eb5271265dd111ee5c417ec85ac SHA-1: ba16c523b238f158bee829ab60e2b1af46be02a6 SHA-256: e4b429c599315ea0fd7f49124be34d8360868f59fded86f85aa0c25738d6c2ec
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ttraff.link/pify?keyword=en+el+mar+la+vida+es+mas+sabrosa+lyrics In PDF document text
    • https://tufobedix.weebly.com/uploads/1/3/4/4/134431979/8539417.pdfIn PDF document text
    • https://gazitagoro.weebly.com/uploads/1/3/4/0/134016873/tipefatit.pdfIn PDF document text
    • https://gugekeki.weebly.com/uploads/1/3/4/3/134374678/vixazig.pdfIn PDF document text
    • https://dokodajibebabek.weebly.com/uploads/1/3/2/3/132302773/5902193.pdfIn PDF document text
    • https://xekixudag.weebly.com/uploads/1/3/4/3/134336078/newijugapavu.pdfIn PDF document text
    • https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/7465066.pdfIn PDF document text
    • https://jutawalafomas.weebly.com/uploads/1/3/4/3/134316275/wuliju.pdfIn PDF document text
    • https://junoxavod.weebly.com/uploads/1/3/1/3/131384771/15893feb1defe.pdfIn PDF document text
    • https://zuxizakubapepo.weebly.com/uploads/1/3/4/3/134317428/306b55fc9b25f.pdfIn PDF document text
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/d916091e10.pdfIn PDF document text
    • https://wekubuzebebam.weebly.com/uploads/1/3/0/7/130739705/nelitop-lerunolalikowu-gisawedutijifuf-mepaxinawewulex.pdfIn PDF document text
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00004b95.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00004b95.bin)
    • https://cdn.shopify.com/s/files/1/0484/3841/1422/files/guitar_hero_2_songs_wii.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1578/2048/files/android_2d_game_scrolling_background.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ab10948-e99a-4449-8207-a778fdde1171/13738287923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/1190/7999/files/wojevavutifeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/9330/4496/files/zuselupirufudomawusosamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/4907/3830/files/55092644997.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b5f7ed8-e024-4d9f-a982-890cdd1dac1e/10110011083.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b0844a1f-164d-457f-8d2d-37f85bf2210b/26696135919.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/3989/9039/files/kawowakolavopiwowar.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 extracted file (font_00_sfnt_off00004b95.bin)

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_off00004b95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B95 5344 bytes
SHA-256: e9845fb24cf7b9df1608a741d300381e299bc8e355fbfdb496354ab8d07a1f8e
font_01_sfnt_off00005db2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB2 9584 bytes
SHA-256: 3eed16ad89133d2eefaec0e254f7318a96e582b7e510bdb4f4206ad75a9e4303

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