Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e8b44266d4ff07a…

MALICIOUS

PDF

73.2 KB Created: 2021-02-25 04:59:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 377de6af7f33cc8cb2e947edd4f9b0ef SHA-1: a98a9dd5005cab6d87d279d76cf731fa628dfaa9 SHA-256: 1e8b44266d4ff07af12665bc0f058388c51108b6f8f4b01979b03ac6e9cda8aa
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://bologen.ru/award?keyword=log+log+plot+linear+regression+matlab PDF link annotation
    • http://rosutob.getenjoyment.net/ponapujetanam.pdfIn PDF document text
    • https://rumitubo.weebly.com/uploads/1/3/4/5/134525427/natavipodeninos.pdfIn PDF document text
    • http://sawemawe.mywebcommunity.org/warrior_of_the_light_-_volume_2.pdfIn PDF document text
    • https://patoduwewoz.weebly.com/uploads/1/3/1/4/131483118/nonipategimo.pdfIn PDF document text
    • https://tupokigefadewun.weebly.com/uploads/1/3/4/7/134702618/kawipixugukajafopug.pdfIn PDF document text
    • https://xekigumi.weebly.com/uploads/1/3/0/7/130776031/lopofeposa-penoluma-benudigoluru.pdfIn PDF document text
    • http://digosige.mywebcommunity.org/polaroid_sx70_film_vs_600.pdfIn PDF document text
    • http://lamaded.mywebcommunity.org/77084771047.pdfIn PDF document text
    • https://tineminelebon.weebly.com/uploads/1/3/1/6/131606156/wulojamape.pdfIn PDF document text
    • http://poxumanavofeboz.scienceontheweb.net/how_to_uninstall_hulu_on_lg_tv.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
    • http://vuzujalaj.epizy.com/rafelefanorejixopususoza.pdfIn PDF document text
    • http://julepudelixi.rf.gd/45243250590.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_off0000d063.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD063 5008 bytes
SHA-256: 789f2cd440dd7eca47bc8e831d8929357ce0ec5594fe177a414f2bef178d034a
font_01_sfnt_off0000e14c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE14C 12708 bytes
SHA-256: b89491b916ac80b4fe031c1bfea991fa9e3f81f5e3cc1d031b291a23b9fb640a
font_02_sfnt_off000109f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109F9 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c