Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cc05fe62400ae36…

MALICIOUS

PDF

58.8 KB Created: 2020-10-15 04:42:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 81466507c65146606b3a3b69030a022b SHA-1: 5605542f3eff311786ea848eb9cf187e1587cb2b SHA-256: 7cc05fe62400ae368d6f3d338679526d4f64be08e78b9fd4a35bb5b07f220659
124 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 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://cctraff.ru/123?keyword=olivetti+valentine+typewriter+manual In PDF document text
    • https://site-1041081.mozfiles.com/files/1041081/rijotul.pdfIn PDF document text
    • https://site-1036637.mozfiles.com/files/1036637/luluxitamopid.pdfIn PDF document text
    • https://site-1042711.mozfiles.com/files/1042711/xusoluzopuduvoxije.pdfIn PDF document text
    • https://site-1042768.mozfiles.com/files/1042768/66471288198.pdfIn PDF document text
    • https://site-1036691.mozfiles.com/files/1036691/vetisibaxuriperap.pdfIn PDF document text
    • https://site-1039828.mozfiles.com/files/1039828/mobile_data_on_off_apk.pdfIn PDF document text
    • https://site-1039417.mozfiles.com/files/1039417/xujirufawipab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366365/normal_5f872459cafb4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365634/normal_5f876794a5374.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366984/normal_5f875502cf9ad.pdfIn PDF document text
    • https://vuzevarezevarot.weebly.com/uploads/1/3/0/7/130740461/vedivomevoreto.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/velimi.pdfIn PDF document text
    • https://finiluxexolije.weebly.com/uploads/1/3/1/8/131856594/bafirop.pdfIn PDF document text
    • https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/3cb113af6.pdfIn PDF document text
    • https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/pufaw.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/d312e3e8-d899-49cc-b44b-1df5bb3e53fb/95462016045.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98f871c4-0bb3-4f5c-845c-f1a26fb238c3/xitopa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0c42087-2fb3-42de-9843-6f4436e34d13/koremilulananoviro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2aaa97bb-d922-4637-a40d-3efb8d92383a/muzizevasefaroromomezusa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45d7c392-87b3-42d7-8f4a-58f87872d255/14528890870.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5e606ae8-d701-4aec-a7dc-2351743d837c/88247757208.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f82c4a84-f075-4810-82fe-82b7186ecf90/97976403618.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008f27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F27 4840 bytes
SHA-256: 4e710aaaf3881267917e87c2e9be263b4d5cf0fcfe18c72e663a87037b2db237
font_01_sfnt_off00009f9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F9C 15516 bytes
SHA-256: e260968d6293c377bc072eb5ab31f201e1154583d9ae1ad28373bb80def4aa24
font_02_sfnt_off0000cefb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEFB 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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