Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cdc3ec0fa6d95f8…

MALICIOUS

PDF

70.5 KB Created: 2021-02-14 16:55:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b2a94bbb3c2463167587b9bef3ec0358 SHA-1: b6df8a6f2b47280dbf8af84ca39f7ff08529e7d9 SHA-256: 6cdc3ec0fa6d95f87d8822f9a3f59aee92f347b5fce46440860d577b5d43ee06
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/wix?keyword=apk+gguardian+tanpa+root PDF link annotation
    • https://nubavusixid.weebly.com/uploads/1/3/5/3/135348304/kuviromutefos_korusetusitowi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386606/normal_5fdc07b02726b.pdfIn PDF document text
    • https://woteginawewe.weebly.com/uploads/1/3/1/3/131379999/tiramita-wegiw-mifesubakej.pdfIn PDF document text
    • https://kemigaguni.weebly.com/uploads/1/3/1/0/131070112/jodununigiput.pdfIn PDF document text
    • https://cdn.sqhk.co/kolokejo/iasjigq/how_much_space_does_20_chickens_need.pdfIn PDF document text
    • http://zaralutodunuwa.66ghz.com/74300250405.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mamawelujuke.rf.gd/88018695572.pdfIn PDF document text
    • http://puxagere.epizy.com/linear_interpolation_worksheet_tes.pdfIn PDF document text
    • https://s3.amazonaws.com/pusolefosex/22856805192.pdfIn PDF document text
    • http://pifajipap.rf.gd/75239066226.pdfIn PDF document text
    • http://vovugezufined.epizy.com/grid-_template-_columns_internet_explorer_11.pdfIn PDF document text
    • http://bajewilogofiro.epizy.com/carl_jung_red_book_english.pdfIn PDF document text
    • http://bibarixe.epizy.com/aluminium_roofing_sheets_near_me.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_off0000d8f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F4 4972 bytes
SHA-256: 0ff1beddd9ca4c79d335d9f799ede4e4557039299dd6077e9de5dcc39be6288f
font_01_sfnt_off0000e9f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F2 10472 bytes
SHA-256: bbab69d3884f16c8b391b79b6df9a759f3c126ba1c31c1db8408d74b47936ec8