Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e90d2a714479d64…

MALICIOUS

PDF

61.0 KB Created: 2021-01-25 21:48:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: cc65d21419748af2c2718cb6088ea669 SHA-1: 6f4b971adca145f6a8f427c140e5194ebbcf0539 SHA-256: 2e90d2a714479d642e617344f3d2b39c97f0c5e22ef0accf5b01e2c14f97c5cb
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/wb?keyword=scruff%20a%20luvs%20jungle%20pack PDF link annotation
    • http://load-bcp.com/stress_management_techniques5thd4.pdfIn PDF document text
    • https://napokepuwaju.weebly.com/uploads/1/3/1/1/131164128/gedoxulumojeruxari.pdfIn PDF document text
    • https://cdn.sqhk.co/nipigagavadu/65IDuhi/nabotuwexopodufegavo.pdfIn PDF document text
    • http://nubolats.xyz/christmas_gel_nail_designs_for_short_nailsz0sg0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415081/normal_5fe2584bcaf74.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375076/normal_5ff33e93bf662.pdfIn PDF document text
    • https://lumigoxodavi.weebly.com/uploads/1/3/1/6/131606620/divutak_wagoxadefeziwuw_rupalevatexim_raxebote.pdfIn PDF document text
    • http://idealslim-ordina.site/tizimoxutotd0t24.pdfIn PDF document text
    • https://dunewalowipeli.weebly.com/uploads/1/3/1/8/131856746/7905474.pdfIn PDF document text
    • https://filukekab.weebly.com/uploads/1/3/4/4/134478490/dolatexotosake.pdfIn PDF document text
    • http://regsenatvumen.website/2164079543qechz.pdfIn PDF document text
    • https://komamezumef.weebly.com/uploads/1/3/1/3/131398541/fubevu-bifizudulu.pdfIn PDF document text
    • http://idealicaitaly-ufficiale.site/lofufajifurovigx1v.pdfIn PDF document text
    • http://kir.center/waxolewoworamulujoselb1kzc.pdfIn PDF document text
    • https://sapefesoj.weebly.com/uploads/1/3/1/4/131453354/8099989.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000b4e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4E0 5484 bytes
SHA-256: e47c3e6c75e9ce92df15a11784d99e8d3c4bf85d8f23a0bbae4b0a2db5672434
font_01_sfnt_off0000c7ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7AB 9240 bytes
SHA-256: b86d0cffee4aae7995973db5297e44447232e2de2dfc3f3b7d8ded9637a6d4b5