Malicious PDF — malware analysis report

Static analysis result for SHA-256 64162367be3c4e8e…

MALICIOUS

PDF

75.1 KB Created: 2021-02-17 00:53:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f17b80339171ed911b45223091cfdd61 SHA-1: 64bd2d8c533a0c7a9a0994b895c3dccaa7975545 SHA-256: 64162367be3c4e8ecfaf6d2812f1f537033e7b659401cc60ca6a6dec81593da3
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/wix?keyword=servsafe+book+7th+edition+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4446275/normal_5fe4bfbd3ca77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412762/normal_6016c500ede7f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405946/normal_6015f24b7a4ff.pdfIn PDF document text
    • http://fashion-deals.xyz/fundamentals_of_geometric_dimensioning_and_tolerancing1hunv.pdfIn PDF document text
    • https://cdn.sqhk.co/zokuwagopole/hgvqghr/pavamisosilanevefebuborot.pdfIn PDF document text
    • http://extraterrestrials.space/wofapibawazerisaog6x1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379971/normal_601b7f45f21a4.pdfIn PDF document text
    • https://cdn.sqhk.co/buxifuludo/hLHgfih/87236196889.pdfIn PDF document text
    • http://rajedat.iblogger.org/challenging_algebra_word_problems.pdfIn PDF document text
    • https://cdn.sqhk.co/bogulevim/58A7DHV/46521148175.pdfIn PDF document text
    • http://edalovert.xyz/dejerekebavefisetekxb2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xofawuriduk.epizy.com/notification_library_android_github.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/bollandbranch_flannel_sheets.pdfIn PDF document text
    • http://jigiwema.epizy.com/bhojpuri_video_gana_dena_bhajan.pdfIn PDF document text
    • http://reditavipesef.rf.gd/22nd_amendment_in_constitution_of_pakistan.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_off0000e72f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE72F 5544 bytes
SHA-256: 5aabbf9ae60aa47ee3077d417d49fc710fe132862df5d049481037135a8ce061
font_01_sfnt_off0000fa0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA0C 11028 bytes
SHA-256: 9dd6d766c04a30cd3816881a9a8603d6451accc6030475c5de789111d022f73d