Malicious PDF — malware analysis report

Static analysis result for SHA-256 356c275a97af601b…

MALICIOUS

PDF

40.2 KB Created: 2020-10-26 19:22:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: fd7187030bbcabd8a7cef7ab863e5b5a SHA-1: 368672a22c653273e6ef336fb5755f3bd4cf0234 SHA-256: 356c275a97af601bb63c94be880904addf92422597178126aa264dfeb1c9f806
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://ttraff.cc/123?keyword=music+on+the+green+southington+ct In PDF document text
    • https://mabanopovofed.weebly.com/uploads/1/3/1/4/131453130/folaf.pdfIn PDF document text
    • https://tegugozitofo.weebly.com/uploads/1/3/0/8/130874592/16386af2e.pdfIn PDF document text
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/vadaj.pdfIn PDF document text
    • https://radutarogo.weebly.com/uploads/1/3/4/3/134379411/05361.pdfIn PDF document text
    • https://fupesovuzej.weebly.com/uploads/1/3/4/0/134016868/kasipusad_mawotenefasuv_sawebedikaxe.pdfIn PDF document text
    • https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/060508426.pdfIn PDF document text
    • https://botubadixebom.weebly.com/uploads/1/3/1/4/131407995/5925643.pdfIn PDF document text
    • https://mogijoduvide.weebly.com/uploads/1/3/0/8/130814471/gezetavitas-sodakorazasa.pdfIn PDF document text
    • https://lozulijulejibog.weebly.com/uploads/1/3/1/8/131857057/gexosupuxewi_mumuz_sojoravofibego_fekavi.pdfIn PDF document text
    • https://kenilajapa.weebly.com/uploads/1/3/1/0/131069910/403847.pdfIn PDF document text
    • https://nesavelo.weebly.com/uploads/1/3/2/3/132303009/6750790.pdfIn PDF document text
    • https://bevokelas.weebly.com/uploads/1/3/4/3/134310014/eae0cef11b337.pdfIn PDF document text
    • https://ruwalabipuges.weebly.com/uploads/1/3/4/4/134465281/buretakeva.pdfIn PDF document text
    • https://kunisalopug.weebly.com/uploads/1/3/4/3/134315348/3ece4a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/7a7fbcb7-b948-4048-b13e-156c945cef84/yu_em_t_ci_nhn_u_tin_phim_bil.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa90fe52-75a1-4a80-9e5d-068ca6fecee8/92721338121.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50c62bbf-d6e8-4d4d-b914-13122560bb44/fipibotuvoro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cc2d286-8025-4e05-b582-0004364bbe57/another_eden_flower_quest.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed0081ba-24c2-4a2b-ae25-5a8b20c2049d/nuxidasajexifikifanob.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5206 4708 bytes
SHA-256: 69bc36b9bbaf730c34a44053046dfcaf7fa0f49fcf376f54f2a5b886ac1b7ad0
font_01_sfnt_off00006202.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6202 10852 bytes
SHA-256: 8e3c72cb2e181a1909cf46350f5d9c65b5cbc1087e7bc4cae3f917c3251a320f
font_02_sfnt_off0000854a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x854A 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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