Malicious PDF — malware analysis report

Static analysis result for SHA-256 627d2d19e42be7c4…

MALICIOUS

PDF

71.8 KB Created: 2021-02-15 06:44:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c7433bc60cd2017e1aef039d2d18e5b3 SHA-1: b3ca387b52bfa28e26ddb2e0707ea0620fb67861 SHA-256: 627d2d19e42be7c4a4d0e0c162b76c605e4ac5615f709e59c18f2a5050d0e5a6
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://druttle.ru/wix?keyword=jim+beckwourth+facts PDF link annotation
    • https://cdn.sqhk.co/visukodo/uge1ihn/50882578977.pdfIn PDF document text
    • http://dazakaguwaxe.22web.org/cake_decorating_tips_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/josurowelimu/nihhj3G/smash_champs_mod_apk_download_android.pdfIn PDF document text
    • https://namoturobiro.weebly.com/uploads/1/3/0/7/130739164/9113922.pdfIn PDF document text
    • https://safodejinuvi.weebly.com/uploads/1/3/4/7/134753113/kerolofukuxam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372735/normal_602429518d182.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454982/normal_5ffdaae141517.pdfIn PDF document text
    • https://cdn.sqhk.co/kusamika/UjcIw2F/madness_combat_hank_anime.pdfIn PDF document text
    • http://gevixadita.22web.org/76984350243.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487641/normal_6008b1f128395.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417206/normal_5fc6a0b09a70c.pdfIn PDF document text
    • https://mejebepagomuda.weebly.com/uploads/1/3/4/4/134494428/55275.pdfIn PDF document text
    • https://xurulojoxog.weebly.com/uploads/1/3/5/3/135323168/bewexijo_vunidodipurog_vizetogexufez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444386/normal_5fe73d63ce348.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sidiwen.epizy.com/zugemifulasef.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/mupopofevuwili.pdfIn PDF document text
    • http://satosawinesuf.rf.gd/67084955041.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_off0000de4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE4B 5376 bytes
SHA-256: e0f6b3f7861d1ecdfec06cdfc5897f4cfb082334ce84d20e102ec8cce391cb74
font_01_sfnt_off0000f080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF080 9972 bytes
SHA-256: 94216532e1717c8c6fefcf72a51d6072dde06a95b07afdb1f0ecc5e0dbd1f17c