Malicious PDF — malware analysis report

Static analysis result for SHA-256 d59c37cb5f53b909…

MALICIOUS

PDF

37.5 KB Created: 2020-11-09 00:15:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: b62d9a871c83b120f5371a3874850fbc SHA-1: 94040be9ef4218f7306a3c9e6b2af17f4e6fdc04 SHA-256: d59c37cb5f53b9095072011d0e3a81d9c42356e369d634bcd1e317876f32b457
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://trafftec.ru/123?keyword=fresh+thyme+market+locations PDF link annotation
    • https://ribifafugulif.weebly.com/uploads/1/3/4/6/134650062/dcaf8fa86b5.pdfIn PDF document text
    • https://duxujofibedusor.weebly.com/uploads/1/3/4/5/134577283/luwogagepuraga-vedigef-teboti-zaninisi.pdfIn PDF document text
    • https://zesopupejilit.weebly.com/uploads/1/3/0/7/130738861/wigusil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366007/normal_5f88706ba73bd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417315/normal_5f9bf28ce2791.pdfIn PDF document text
    • https://xawuvokepixa.weebly.com/uploads/1/3/4/6/134617960/badimaki.pdfIn PDF document text
    • https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/tojodepizaduka-wilijabob.pdfIn PDF document text
    • https://sujajikozodes.weebly.com/uploads/1/3/1/3/131384638/vusozepimirutu_verewilafimiwu_ruwokufudil.pdfIn PDF document text
    • https://xiletepegokif.weebly.com/uploads/1/3/4/3/134319576/ea98d2f99.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/punurum/pixel_battle_royale_unblocked_76_google_sites.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/tudinebazafijig.pdfIn PDF document text
    • https://s3.amazonaws.com/gowebabuxogiro/risejeb.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/22845577408.pdfIn PDF document text
    • https://s3.amazonaws.com/nefagolom/atv_destroyer_unblocked_games_66.pdfIn PDF document text
    • https://s3.amazonaws.com/dukajevo/mubupukatonuxazerigubi.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/33312874816.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_off000055a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55A3 5160 bytes
SHA-256: aa2aacf7b9c6468f53e013bd2692ba0caf208fbfa945bff0df0729afb52eebaa
font_01_sfnt_off0000670c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x670C 10060 bytes
SHA-256: dbbeba1c1ed85d51f90b3def10a6e844a9b058b636088b649f569e643c557a91