Malicious PDF — malware analysis report

Static analysis result for SHA-256 31a7fbbc76f6bf8c…

MALICIOUS

PDF

341.1 KB Created: 2022-04-17 23:45:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: e236828911cb53fa41c77e6d8fbee987 SHA-1: af41b58f4c531ef78a055286964f1989ec9340af SHA-256: 31a7fbbc76f6bf8cdfdc1848f88f76767cc57f56cc0d8d585657187733d52db0
161 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6374

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://wegudogixudefup.weebly.com/uploads/1/3/1/4/131438345/kisigebilos_gukew_mupesopanaji_sawedu.pdf In PDF document text
    • https://kewikadovus.weebly.com/uploads/1/3/4/7/134746666/fekegop_dobefo_wigetafonezefe.pdfIn PDF document text
    • https://kedixusivazusug.weebly.com/uploads/1/3/4/8/134869684/267587.pdfIn PDF document text
    • https://bujibapi.weebly.com/uploads/1/3/4/3/134383234/napafu-jigapuf-surazineragab.pdfIn PDF document text
    • http://xn--h1aaebajlcgx.xn--p1ai/sadm_files/firexivoze.pdfIn PDF document text
    • https://lubumona.weebly.com/uploads/1/3/4/6/134648672/1cba8a.pdfIn PDF document text
    • https://pepotojil.weebly.com/uploads/1/3/4/9/134900045/wisasa.pdfIn PDF document text
    • https://kotata-zlin.cz/obr/clanky/file/27278286656.pdfIn PDF document text
    • https://immsac.pe/sgi_userfiles/userfiles/files/66174414209.pdfIn PDF document text
    • http://laser-piskovani.cz/democms/userfiles/file/fotum.pdfIn PDF document text
    • https://ditixalopu.weebly.com/uploads/1/3/1/4/131410538/gezigakitekuso.pdfIn PDF document text
    • http://chunzucn.yun2u.cn/upload/files/39782530206.pdfIn PDF document text
    • http://www.comhairleuladh.com/uploads/files/lodebemuwij.pdfIn PDF document text
    • https://lowarimubabop.weebly.com/uploads/1/3/4/7/134712264/rebab_kikujapudo.pdfIn PDF document text
    • https://zinorenote.weebly.com/uploads/1/3/5/3/135349773/5330160.pdfIn PDF document text
    • http://ssmsuits.com/kcfinder/upload/files/37974956268.pdfIn PDF document text
    • https://botasapozav.weebly.com/uploads/1/3/1/6/131607984/wedodovivixo_vozikerojebi.pdfIn PDF document text
    • https://virataxutepubom.weebly.com/uploads/1/3/0/8/130874282/dudezudonafepok_wuwoxaxakuziret_kumenaw_zokadovu.pdfIn PDF document text
    • https://careerexpo.alljobsinliberia.com/ckfinder/userfiles/files/51794019190.pdfIn PDF document text
    • https://marejeloxivel.weebly.com/uploads/1/3/4/7/134709382/5164161.pdfIn PDF document text
    • https://nasanoxizi.weebly.com/uploads/1/4/1/4/141460823/1f86ef9c5dfd.pdfIn PDF document text
    • https://juzopuxenepin.weebly.com/uploads/1/3/5/3/135383483/bukeluridafiwip.pdfIn PDF document text
    • https://pojekemo.weebly.com/uploads/1/3/4/4/134469054/mokokanedifetim.pdfIn PDF document text
    • https://degetopej.weebly.com/uploads/1/3/4/7/134727915/f301f4f2e69606.pdfIn PDF document text
    • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/162269d4abca06---12784454822.pdfIn PDF document text
    • https://ragikigoludu.weebly.com/uploads/1/3/4/8/134849848/98860.pdfIn PDF document text
    • https://dekozijesejezap.weebly.com/uploads/1/4/1/4/141436701/depamevabaf.pdfIn PDF document text
    • https://fugurisugo.weebly.com/uploads/1/3/6/0/136086283/b228ccae85776.pdfIn PDF document text
    • https://www.groupe-coelho.fr/ckfinder/userfiles/files/98573365475.pdfIn PDF document text
    • http://africanhairbraidingsalon.com/userfiles/file/xevudumi.pdfIn PDF document text
    • http://vekosgroup.ru/userfiles/file/toladuvavatupodazijaxiniz.pdfIn PDF document text
    • https://limuvowefegepud.weebly.com/uploads/1/3/4/5/134509231/4323104.pdfIn PDF document text
    • https://fecuq.co.za/XSRYdR1H?utm_term=filmywap+kabir+singh+hdPDF link annotation
    • 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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0004db1f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004db1f.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004db1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DB1F 18920 bytes
SHA-256: f7beb459f83e0df70f369a480289b11a29a72fe9a30d844d67b3beeb415737ad
font_01_sfnt_off00050bf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50BF6 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00052403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52403 1680 bytes
SHA-256: 6c08887b596ecb472c5a0482df8c2f828d83fc5b5d16111ed0caa1fced1b35dc
font_03_sfnt_off00052c00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52C00 10900 bytes
SHA-256: a1238dd22751447130023ad7eb7d64101e60a828201afcaa954f4db809486a05