Malicious PDF — malware analysis report

Static analysis result for SHA-256 51f6303eb901a6a7…

MALICIOUS

PDF

70.1 KB Created: 2021-02-26 10:37:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 809ca28d562dce5c6b1a720741bc477e SHA-1: 9884ff60fd773f2400e8eb2106e173900cd20a0a SHA-256: 51f6303eb901a6a7eda16052cc844e3a574b82d16ab07602035e49332094a506
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/award?keyword=how+to+change+time+on+citizen+eco+drive+e650 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4445733/normal_6023f56762753.pdfIn PDF document text
    • https://xikanunifozale.weebly.com/uploads/1/3/1/8/131860479/vukidebari.pdfIn PDF document text
    • http://tameeniraq.com/solidworks_2020_assembly_tutorial79ogg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454668/normal_5fc62bc83dfcc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490739/normal_5ff43a27e30fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471455/normal_6015b4320dd85.pdfIn PDF document text
    • https://cdn.sqhk.co/dusivubeleza/aLSz8jd/ufc_254_fight_card_start_time.pdfIn PDF document text
    • http://aycotoro7.xyz/58895461500l3wp0.pdfIn PDF document text
    • http://buyervannakupitvsem.xyz/gupirajijajazut8jc0g.pdfIn PDF document text
    • http://ses-paypal.com/63931188490mtevl.pdfIn PDF document text
    • https://jaxedafotonomut.weebly.com/uploads/1/3/4/8/134885779/05d848e7d20.pdfIn PDF document text
    • https://roguvajodanuk.weebly.com/uploads/1/3/1/3/131379692/xitozixopu.pdfIn PDF document text
    • https://waxosutuj.weebly.com/uploads/1/3/1/4/131437699/xelufofaki_zoruz_dorade_zinun.pdfIn PDF document text
    • https://fuviwezajoz.weebly.com/uploads/1/3/1/3/131379384/temajakule_bewobuxamu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gasonuranokojof.epizy.com/sq8_mini_dv_camera_price_in_pakistan.pdfIn PDF document text
    • http://kisidop.rf.gd/zozumoro.pdfIn PDF document text
    • http://tekaxipi.epizy.com/affliction_warlock_bfa_pve_guide.pdfIn PDF document text
    • http://sirilamezowi.epizy.com/82279598696.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_off0000d58b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD58B 5724 bytes
SHA-256: 7c0eedbe326ad6e04c9eb26e110e63dbca1170e4239d45f56d5409a136f25153
font_01_sfnt_off0000e902.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE902 9856 bytes
SHA-256: a7f393570bf5b43a8f936d94f488a07a7441072cc5a7347872dc9b3946bd9b1d