Malicious PDF — malware analysis report

Static analysis result for SHA-256 07585e6ebba46148…

MALICIOUS

PDF

73.3 KB Created: 2021-02-13 11:20:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d23d8734b101b310bc7fe9595ae0b325 SHA-1: 74f493603dd3348d26354f1d64136b6c70792b96 SHA-256: 07585e6ebba46148d800852672e09639a647eb3c6919b833cfd622927c929410
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://jacksth.ru/123?utm_term=wood+mackenzie+internship PDF link annotation
    • https://cdn.sqhk.co/wiwifudu/SY98Jjd/kibupilutituzawowikef.pdfIn PDF document text
    • http://maxovulosaxa.22web.org/86195833960.pdfIn PDF document text
    • http://tersq.space/film_habibie_ainun_3_indoxxi90qil.pdfIn PDF document text
    • http://vifofumimugeke.22web.org/pover.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484806/normal_5feb89bda9e1d.pdfIn PDF document text
    • http://flathead.us/pipubikiu8car.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455403/normal_6006a785984ce.pdfIn PDF document text
    • https://cdn.sqhk.co/dimowitop/heridJr/juveponunafajitefimitage.pdfIn PDF document text
    • http://smilex.club/death_point_apk_mod7ey7q.pdfIn PDF document text
    • http://carluxepaint.site/year_7_maths_algebra_worksheetsc9k0r.pdfIn PDF document text
    • http://paganel.world/xamuvefonugatq8q4t.pdfIn PDF document text
    • http://silkhfig.bid/guideposts_trust_ltdue3ky.pdfIn PDF document text
    • https://cdn.sqhk.co/purovufizu/idvihBX/dotafulibem.pdfIn PDF document text
    • http://gk-kuban.ru/608557310516vv4k.pdfIn PDF document text
    • http://wofatis.22web.org/tomodufejosukikat.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tugepujato.rf.gd/guwogekaz.pdfIn PDF document text
    • http://ravuxigud.epizy.com/yeast_fermentation_lab_report_example.pdfIn PDF document text
    • http://lirepotinemos.rf.gd/bollywood_songs_2017_320kbps.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 5408 bytes
SHA-256: c56e66587b1a9f6082d21d34263cdf6f319fd9954fe6c00ff235bba2cd30fe19
font_01_sfnt_off0000f51a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF51A 10408 bytes
SHA-256: 29c9de5a040bcc54f3943ef4d34dbbf9c8ab0ba7f87ba21057d6a459494f6ba7