Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1dad5e260c0b615…

MALICIOUS

PDF

47.6 KB Created: 2020-10-13 20:30:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6e06d5b318f4d5fb470953571da51326 SHA-1: b58d1e7890ab48e073b6d2df735ae13de9e4bc3c SHA-256: e1dad5e260c0b615fddb9721114d67fe59a626cc43f6142b8e4df1926e65e7c2
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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1109957.pdf.
  • 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://gettraff.ru/strik?keyword=download+game+monopoly+offline+untuk+android In PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1109957.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/8554420.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/ratot_muweliwamopoj.pdfIn PDF document text
    • https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/b919b1ed8f.pdfIn PDF document text
    • https://site-1041281.mozfiles.com/files/1041281/75282788422.pdfIn PDF document text
    • https://site-1036767.mozfiles.com/files/1036767/52642273640.pdfIn PDF document text
    • https://site-1037824.mozfiles.com/files/1037824/71998099789.pdfIn PDF document text
    • https://site-1042270.mozfiles.com/files/1042270/rirozebikowexopegeju.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/7971455.pdfIn PDF document text
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/jolon_koxuzozudanik_makilitinami.pdfIn PDF document text
    • https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/bupemigimamuvap.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/be32c977-38cc-4426-aaaf-38d267fe65fb/dorelujigewab.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eda5d4d7-1cca-4765-9a2a-747e01c8a5a4/13614245172.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b3cbe452-afdf-476d-b203-489e9c9cb790/49784471181.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb8b525d-f826-49c0-8cba-c47fa8ed0567/dozezujojux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b373a301-a0a0-493f-b630-ad96a8c53ffd/furotoxawaluxonakak.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_off000069de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69DE 5324 bytes
SHA-256: a719174643aa3fb588fba8a456896eaaeb7cd0b8a872b562cb368aa0075b2032
font_01_sfnt_off00007bfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BFD 12092 bytes
SHA-256: 47605006915e32bb421f9f5e476b43172d582ba1ca3157111cd0c12a75fff6fb
font_02_sfnt_off0000a2e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2E9 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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