Malicious PDF — malware analysis report

Static analysis result for SHA-256 30358afcd751579d…

MALICIOUS

PDF

60.2 KB Created: 2021-02-08 00:03:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 198c854a0649aeae97b282efc6ad9a41 SHA-1: f20d9767f4256dfed5ff5d94cbed1134d2199731 SHA-256: 30358afcd751579dc851cb63ef5ed0ce650795ce354c3de1ea1babfa28d736ec
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/aws?utm_term=sheet+metal+creasing+tool PDF link annotation
    • http://gimakelodikovij.iblogger.org/jammu_university_date_sheet_private_part_2.pdfIn PDF document text
    • https://logesili.weebly.com/uploads/1/3/5/3/135389335/1131873fbab69.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469350/normal_5fc941493165e.pdfIn PDF document text
    • https://gifenatewa.weebly.com/uploads/1/3/4/4/134480542/ac59dc7bae.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415055/normal_5fdaac584b43c.pdfIn PDF document text
    • https://sirawosoze.weebly.com/uploads/1/3/0/7/130776152/2151038.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471992/normal_6014f5dec15e2.pdfIn PDF document text
    • http://jumazeg.iblogger.org/losoverudegup.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449602/normal_5fdda54e92ece.pdfIn PDF document text
    • https://devojakosumu.weebly.com/uploads/1/3/5/3/135314674/nuxarojawugekox.pdfIn PDF document text
    • http://nozudozaki.22web.org/ncert_mathematics_textbook_for_class_5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407086/normal_600d2590bf54f.pdfIn PDF document text
    • http://vakexuk.22web.org/litamesi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483624/normal_5ffecef9bf35f.pdfIn PDF document text
    • https://jibizixowaxen.weebly.com/uploads/1/3/5/2/135296653/sixajevasi.pdfIn PDF document text
    • https://gupovokezatiku.weebly.com/uploads/1/3/4/8/134878629/807298.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://demuremapinob.epizy.com/ccavenue_android_github.pdfIn PDF document text
    • http://dutugege.epizy.com/earthquakes_and_seismic_waves_worksheet_answer_key.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_off0000b327.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB327 5316 bytes
SHA-256: 4518a27508e1632b56d0a18f9a120a36dfdf403080d8b665f11bddf6e5de00bd
font_01_sfnt_off0000c508.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC508 9152 bytes
SHA-256: d35a9ba484c70be5311e25bbadeba7c2295505a638f0d70fdefb1fb30a3f1920

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