Malicious PDF — malware analysis report

Static analysis result for SHA-256 f64a22ec6da035c7…

MALICIOUS

PDF

73.4 KB Created: 2021-03-02 05:15:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7e890d80c8c4867c0fac199dc13edf27 SHA-1: 8ae36be82218788feae43f9f9e92b551a45d1873 SHA-256: f64a22ec6da035c75390e5ba41039df1eef87d27af80cfc8e76f85e42a585912
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://resalured.ru/aws?utm_term=how+to+get+your+permit+in+ma PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4443809/normal_60160de0573f9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461523/normal_603c8305b2f15.pdfIn PDF document text
    • http://mastericy-chistoty.ru/jupanuxidapedw8lqq.pdfIn PDF document text
    • http://samettemiz.xyz/pukisibrabxn.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4530846/normal_5fe66cb776f05.pdfIn PDF document text
    • https://cdn.sqhk.co/boxepupovemu/gU9Pibq/17888465636.pdfIn PDF document text
    • http://masito.space/77487014322wlfzz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417306/normal_5fda97ddd4c54.pdfIn PDF document text
    • http://meetporte.xyz/jilujiiodt0.pdfIn PDF document text
    • http://uber-global.com/doravvhy5o.pdfIn PDF document text
    • http://mini-cam-v2.club/defilers_rep_guide5jnj5.pdfIn PDF document text
    • http://energytik.net/the_trials_of_apollo_indonesiabpagw.pdfIn PDF document text
    • http://coloradocustomelectric.com/nancy_drew_and_the_hidden_staircase_full_movie_watch_online_free92gaz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415326/normal_5ff8f67a5e3dd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mogedozara/fagakavedetolizelasobe.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_off0000e2c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2C8 5084 bytes
SHA-256: af8526b81ca0c1407a0bdedb8dc732139048ade428aa35fcbf0642d94a1fc45d
font_01_sfnt_off0000f41b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF41B 10788 bytes
SHA-256: 0eabd7305e7ea2bba2f9283d2de1479080eef0396460d805992df966d4edb341