Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad80770abac6a6cd…

MALICIOUS

PDF

224.4 KB Created: 2022-05-29 06:07:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: 93f5c150d9142921cad06f75a9b86440 SHA-1: e5ee61671f28cf1a4af3c8e51ca3192c1fce3f0d SHA-256: ad80770abac6a6cd98e53995d82eb9a1087a203232fd6fd7f848e8067345d6e5
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating it is a phishing lure, specifically designed to harvest credentials by presenting an MFA or one-time code request. The embedded URL `https://tevav.co.za/XSRYdR1H?utm_term=tutorial+carding+android+pdf+free+online+free+full` is identified as an SEO redirector, further supporting the phishing intent. While no scripts were explicitly extracted, the PDF structure and the presence of external links suggest potential exploitation of PDF vulnerabilities to redirect the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7668

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://tevav.co.za/XSRYdR1H?utm_term=tutorial+carding+android+pdf+free+online+free+full PDF link annotation
    • https://lombardpruszkow.pl/local/userfiles/file/gutipukumitepeloveneximut.pdfIn PDF document text
    • http://stromzeleny.cz/file/49229190294.pdfIn PDF document text
    • https://viwezoluzuwa.weebly.com/uploads/1/3/4/4/134401695/3077077.pdfIn PDF document text
    • http://kungfubp.hu/admin/assets/images/files/dofurobirixadaxuv.pdfIn PDF document text
    • http://busangh.com/attfile/fckimg/file///20220202224656_339892638.pdfIn PDF document text
    • https://www.koreayokogawa.com/ckfinder/userfiles/files/gipisuruxilafu.pdfIn PDF document text
    • http://lehoangcctv.com/ckeditor/kcfinder/upload/files/pojoxex.pdfIn PDF document text
    • https://km2804.com/ckupload/files/lejowigaro.pdfIn PDF document text
    • http://livestocksaltlicks.com/ckeditor/kcfinder/upload/files/52404053484.pdfIn PDF document text
    • https://wobapuzufisuro.weebly.com/uploads/1/3/4/0/134042344/bevije.pdfIn PDF document text
    • http://biemmecommerciale.eu/userfiles/files/31869025747.pdfIn PDF document text
    • https://romasagato.weebly.com/uploads/1/3/4/7/134723475/nizub_mevas_kofifikawikoxo.pdfIn PDF document text
    • https://luxm.pl/userfiles/file/pedawu.pdfIn PDF document text
    • https://redodire.weebly.com/uploads/1/3/1/4/131408340/sejobamafuv.pdfIn PDF document text
    • https://tusilagel.weebly.com/uploads/1/3/0/7/130739454/73a7def71638.pdfIn PDF document text
    • http://predit.ru/admin/ckfinder/userfiles/files/6585011757.pdfIn PDF document text
    • https://vivuwugo.weebly.com/uploads/1/3/0/9/130968913/remusotigiwubema.pdfIn PDF document text
    • http://surestegc.org/documentos/file/26429213200.pdfIn PDF document text
    • https://diedacorporation.net/freesiafiles/file/kebinawi.pdfIn PDF document text
    • https://funstore.dialog.org/userfiles/file/fabizatelo.pdfIn PDF document text
    • http://jaipurfabricator.com/newerac2c/userfiles/file/64066422767.pdfIn PDF document text
    • https://www.sinditamaraty.org.br/site/public/ckeditor/kcfinder/upload/files/41291252480.pdfIn PDF document text
    • https://nulenedo.weebly.com/uploads/1/3/6/0/136084055/fatalubudebujuxetox.pdfIn PDF document text
    • http://chunzucn.yun2u.cn/upload/files/zolixigenifowimi.pdfIn PDF document text
    • https://sijetiwiriwex.weebly.com/uploads/1/3/2/6/132683168/d1b4452.pdfIn PDF document text
    • https://marketlayer.com/assets/kcfinder/upload/files/satisinajur.pdfIn PDF document text
    • https://ihappywash.com/uploads/files/202202141411482367.pdfIn PDF document text
    • http://mtjjt.com/2013/upload/article/files/220215074427340797s6xl8.pdfIn PDF document text
    • https://fxafidelite.megazone-reims.com/userfiles/file/zewufokisogosite.pdfIn PDF document text
    • https://kufaxalerix.weebly.com/uploads/1/3/1/4/131453821/7133749.pdfIn PDF document text
    • https://sangogiaphuc.com/admin/webroot/upload/image/files/xesifopaxozinivuge.pdfIn PDF document text
    • http://saraco.kz/public/uploads/files/62038986572.pdfIn PDF document text
    • https://natesikapepik.weebly.com/uploads/1/3/4/7/134750077/2107186.pdfIn PDF document text
    • http://impress-solution.com/file_media/file_image/file/wabirevolomonamo.pdfIn PDF document text
    • https://idosekotthonaveresegyhaz.hu/files/files/kuxupaloxekutet.pdfIn PDF document text
    • https://dixitelenamipum.weebly.com/uploads/1/3/4/3/134380202/lapuxelumasosamuva.pdfIn PDF document text
    • https://lixazasowab.weebly.com/uploads/1/3/4/5/134588429/pewufof.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003112f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3112F 10688 bytes
SHA-256: bf5d02eb090a4ce289d92bd6a7689bfe7f23e96d0bc98afc1a9d24f329e0095b
font_01_sfnt_off00032991.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32991 17764 bytes
SHA-256: 2761bcfc790e8ed28be1589aebee2eb79a20486dd86f0611e5469c497195b2f3
font_02_sfnt_off000357ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x357ED 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1