Malicious PDF — malware analysis report

Static analysis result for SHA-256 10587bddd402981c…

MALICIOUS

PDF

44.3 KB Created: 2020-11-08 05:05:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 6419a53a9f741a45147bea079cb274fe SHA-1: 97c6377967cadbc9e039ca195dff51dbdc3c0bf6 SHA-256: 10587bddd402981c040d67bdc40fd9fca57410371a0b301b8016d641a72f96b1
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://trafficel.ru/aws?keyword=beginner+pickleball+lessons+near+me PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4476148/normal_5fa544837976f.pdfIn PDF document text
    • https://didavetamij.weebly.com/uploads/1/3/4/3/134320859/6d94e58548506.pdfIn PDF document text
    • https://rozazokosu.weebly.com/uploads/1/3/0/8/130813972/lapikafalipafon-mexagutowikufu.pdfIn PDF document text
    • https://megoximigiwuboz.weebly.com/uploads/1/3/4/5/134579220/sesinikef.pdfIn PDF document text
    • https://pokezivakizame.weebly.com/uploads/1/3/4/6/134619377/ridibenuka.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tosasugokod/chs_parent_portal_login.pdfIn PDF document text
    • https://junevip.files.wordpress.com/2020/11/34956584451.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/45238652269.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/mivilisujebapiv.pdfIn PDF document text
    • https://wopuxipimupa.files.wordpress.com/2020/11/wotilimokojonuriku.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6123 5212 bytes
SHA-256: e30af4bc7ec4e1850e37af644e8eafec3f44c728638d531e014185e2faa4c2df
font_01_sfnt_off000072b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B1 10540 bytes
SHA-256: 6537f88151f6d79f089600e7bd3e1750c1d857642ace08858088765456494a19
font_02_sfnt_off000096be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96BE 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176