Malicious PDF — malware analysis report

Static analysis result for SHA-256 15701fc69e574a1c…

MALICIOUS

PDF

40.7 KB Created: 2020-10-08 10:14:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: d3713343720ed8809491860fda47002c SHA-1: 5d727fc1e2265ee86578e10cd59c47c791bda16c SHA-256: 15701fc69e574a1cfd11b2e875c6d3e9001eaaeb0f702dac75ac76ffeea7cab2
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://ggtraff.ru/pify?keyword=siberian+huskies+for+sale+craigslist In PDF document text
    • http://files.drmichaelgimbel.com/uploads/1/3/2/8/132816091/1f1ab.pdfIn PDF document text
    • http://files.valeriecarricatodrums.com/uploads/1/3/1/3/131384602/2620577.pdfIn PDF document text
    • http://files.goodsizetour.com/uploads/1/3/1/4/131453251/mexixajopuzet.pdfIn PDF document text
    • http://files.tsfabricator.com/uploads/1/3/2/6/132682806/rafegi_pebukigu_rakokuxejizugex_sajigisa.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/02e1d773-58fc-48db-9552-0b4abf6b337b/41918019753.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c30ff419-c91d-48a2-8086-ace621445c26/gamoroxowuwilimamabo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aabfffc9-04f5-45fc-81d4-b2c983de0c52/pomebepuxexivozagete.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8ea75166-8d81-43fc-a916-22bf1d681b76/dawopujona.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/727fb679-58dd-47dd-9128-09642cfd68d2/26674586623.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/07e7f78c-06b3-48a4-ae5a-3bd14b58090e/gapisidarafexepaxij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23530057-37b5-4999-ae45-e4e62c3d5764/bebad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89f6e617-4303-4f4f-aff3-73f5a3248b37/zaxexagilowowakoxut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2556/2785/files/bowmaster_2_winter_storm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/dorothy_lynch_dressing_near_me.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8158/0188/files/xusatikegerajalaped.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

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_off00006126.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6126 5452 bytes
SHA-256: 7df1fffda4fa93cb20e16ed475f0b17fa0436474b27bf5b9c1e73df6581f103c
font_01_sfnt_off000073a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73A5 10052 bytes
SHA-256: ee58ec2e96f5f8e5c3b869c4e358cefdd2a39cbb893318a9f469e3696995b52b

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