Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba346e277623a4f4…

MALICIOUS

PDF

44.4 KB Created: 2020-10-15 03:51:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: a002f648c918dd80e585433eaa875d6f SHA-1: ebf6c8ca1be0f61839216e5326c9ba634bfc88a5 SHA-256: ba346e277623a4f4fbb80c5fcd5e71766574ee922fc17408fff635a29f9dd40c
184 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?keyword=cache+image+glide+android In PDF document text
    • https://site-1040045.mozfiles.com/files/1040045/safizatujesejivaj.pdfIn PDF document text
    • https://site-1038547.mozfiles.com/files/1038547/pijomoluwizabakatudutorev.pdfIn PDF document text
    • https://site-1043126.mozfiles.com/files/1043126/finesimanoxogovapot.pdfIn PDF document text
    • https://site-1039935.mozfiles.com/files/1039935/topurimibokik.pdfIn PDF document text
    • https://site-1043694.mozfiles.com/files/1043694/22528892941.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/kadupe_ripovu_jozovagazemewe.pdfIn PDF document text
    • https://site-1038422.mozfiles.com/files/1038422/fifikolatisug.pdfIn PDF document text
    • https://site-1042983.mozfiles.com/files/1042983/sigawanokutotefaf.pdfIn PDF document text
    • https://site-1042275.mozfiles.com/files/1042275/kumilemegiwarifizokoz.pdfIn PDF document text
    • https://site-1043034.mozfiles.com/files/1043034/pojuzovinipasijinosorek.pdfIn PDF document text
    • https://site-1040327.mozfiles.com/files/1040327/sibowoxax.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/fozojige-fagejo.pdfIn PDF document text
    • https://jawasolasazilem.weebly.com/uploads/1/3/1/3/131379174/beparinunij.pdfIn PDF document text
    • https://finiluxexolije.weebly.com/uploads/1/3/1/8/131856594/2431298.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/bfe20ea4-89c6-4f03-9644-2a8a5bba3107/85490746941.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cd239cb-e0e3-4b03-bf67-45e57689896c/87218387311.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4a2e73e1-c9f5-4327-ae40-752e2a38f2a0/48727005653.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/031481b8-0d2d-40e7-bfd5-23ccec423ba7/kenovetinebavukalisoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3bc3717-10c0-45df-8a31-9d41a63cd06f/97374061072.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1841d003-a90f-4779-9c59-27f2fe5bdcf4/62146669103.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb3cdbb9-3378-4372-8aca-fa98abf8d06c/58668403053.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3224591e-1a0e-471c-a3f9-adcabb62b147/jinozamupubapobas.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_off00006fd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD6 5080 bytes
SHA-256: 9e7315ca80e5235c2f13a19f9f74f81d6fbfeb24e261737de555f79a68bd7159
font_01_sfnt_off000080ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80ED 10448 bytes
SHA-256: 9a6117e262ffcc77d4fdb719d7582fb95c411999a507552350df74ab6ed08f61

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