Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb00d7e0a86c1346…

MALICIOUS

PDF

72.5 KB Created: 2021-03-04 17:19:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 30b4528fb1982c4af03370fafd0717d6 SHA-1: 3841d0d056588b4cab9336442b484318c90deb83 SHA-256: cb00d7e0a86c1346e73ae0484d1c0fffd06a770cf75846f0e5f9da9b662a8a39
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://xajibur.ru/award?keyword=sq8+mini+dv+camera+price PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417834/normal_5ff9a51a09a39.pdfIn PDF document text
    • http://helpforteam.com/meme_soundboard_ultimate_2020_scratchiu7mx.pdfIn PDF document text
    • https://cdn.sqhk.co/kerutadit/qFhj0ia/64538023159.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413969/normal_600faff0ec90d.pdfIn PDF document text
    • https://cdn.sqhk.co/daxerarugak/ciaejbm/shake_shack_logo.pdfIn PDF document text
    • https://cdn.sqhk.co/dugelabomaw/behiKMg/stick_war_legacy_mod_999_army_apk_download.pdfIn PDF document text
    • https://wutuzorul.weebly.com/uploads/1/3/5/9/135963099/4390593.pdfIn PDF document text
    • http://redtea.space/train_shunting_puzzle_gamegh7cu.pdfIn PDF document text
    • https://bigifami.weebly.com/uploads/1/3/1/4/131407708/3f3bb29c.pdfIn PDF document text
    • https://dolepaxutafajur.weebly.com/uploads/1/3/0/9/130969408/ed614.pdfIn PDF document text
    • https://cdn.sqhk.co/ragojagef/hVvSbih/kodie_shane_ft_lil_uzi_vert.pdfIn PDF document text
    • https://zivogozupitis.weebly.com/uploads/1/3/1/4/131406352/geguxa_gomafefolisor_dubigenit_ronan.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444357/normal_6012c1150e403.pdfIn PDF document text
    • https://tijesefufejeje.weebly.com/uploads/1/3/4/8/134858706/gitalasewosivu-mulibasitaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413697/normal_60262fa079b6c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://be9c8297-50e9-4ec8-be22-7cc4068ef96a.filesusr.com/ugd/fc3b0b_8841942dfc27437895d188e560147d0a.pdf?index=trueIn PDF document text
    • https://d4180a97-8dd0-4bf1-9e2f-d1b128d1a64d.filesusr.com/ugd/ae059d_33e43c60e95f403ca55c2d2b55bd6128.pdf?index=trueIn PDF document text
    • https://ef733714-782c-48ea-8991-1bc0bf0c95f2.filesusr.com/ugd/ad2ade_4f10ec840ba84c61b112b1e8372f634b.pdf?index=trueIn 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_off0000dd6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6A 5492 bytes
SHA-256: 421c6c8ea973b7b4ccbe09a5d5e0718bd0040eebe64827b0c5a68e279d3a5de1
font_01_sfnt_off0000f008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF008 10492 bytes
SHA-256: 4bac462c4c4ebbeba0819d9ab660dd6540bf7f79df87e861992f6b7de4b806a3