Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef5d6983b88174ed…

MALICIOUS

PDF

69.2 KB Created: 2021-02-26 18:26:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: bf467fdccab17464d45c8d1d72ec9a73 SHA-1: 769b8f0f651208b9aaef88f58c2392ab0a9ca55d SHA-256: ef5d6983b88174ed28872bb149a98c85229227c1d5b3fa6fc0f419c6483ec6aa
204 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.
  • 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.
  • 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://jottigo.ru/wix?keyword=florida+contractors+manual+2019 PDF link annotation
    • http://mobufuwiwid.medianewsonline.com/rofimolug.pdfIn PDF document text
    • https://cdn.sqhk.co/nigalasiline/ii4kjh0/best_recording_app_for_android_phone.pdfIn PDF document text
    • https://cdn.sqhk.co/sadetujadufi/igKibVT/tokugeniretigiwuwo.pdfIn PDF document text
    • https://cdn.sqhk.co/rabovafom/C4hflFa/season_2_of_warrior_nun_release_date.pdfIn PDF document text
    • http://pefiworawodud.mypressonline.com/2602735936.pdfIn PDF document text
    • https://wuvumivew.weebly.com/uploads/1/3/1/4/131410662/1001598.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4499021/normal_5fc98a81cccff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374715/normal_5fcf5c19be5f4.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxobenona/ggRbRii/viridiana_meaning_name.pdfIn PDF document text
    • https://nolujamikudaze.weebly.com/uploads/1/3/4/8/134868466/4607153.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/gurafoga/zoduxirexuwovogujemegala.pdfIn PDF document text
    • https://s3.amazonaws.com/napisakaluja/wanefofozudusavurudom.pdfIn PDF document text
    • https://s3.amazonaws.com/feseni/bluetooth_driver_for_hp_laptop_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kavifunaruvi/5697192695.pdfIn PDF document text
    • https://s3.amazonaws.com/sojaxub/35977338748.pdfIn PDF document text
    • https://s3.amazonaws.com/kudefem/likixuwudokesebililopijol.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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d03a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD03A 5520 bytes
SHA-256: c3262cd3a9bc222883286a4c68ec1213a90737631c1c0d26cc42ca6a78a05899
font_01_sfnt_off0000e2ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2EA 10892 bytes
SHA-256: e9e741cd952670e89501d7bb07179ea6d29d3fcc6e511e19a19208d843b5249b

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