Malicious PDF — malware analysis report

Static analysis result for SHA-256 106a33ed280cba78…

MALICIOUS

PDF

224.7 KB Created: 2021-06-12 22:41:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: e9e3792e319c9950e3caa87d0353ea31 SHA-1: 7a4399a65589a5796703e9505c9c7b0982e0a502 SHA-256: 106a33ed280cba78ce8a555b2db5d0ecfacfb7539b898e726829e6c65e4d7e94
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document was flagged by multiple heuristics, including ML classification and ClamAV, as malicious phishing content. It contains an image lure that redirects to the URL 'https://xezojetit.ru/123?utm_term=alopecia+x+spitz+pdf', indicating a phishing attempt to lure users to a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9819

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
  • 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.
  • 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://xezojetit.ru/123?utm_term=alopecia+x+spitz+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4474759/normal_601ee58539fd0.pdfIn PDF document text
    • https://watibovogop.weebly.com/uploads/1/3/4/8/134876481/434946.pdfIn PDF document text
    • https://juwaxevepatasi.weebly.com/uploads/1/3/0/8/130874094/608e5c4eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411229/normal_5fe94faa24c3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427097/normal_5fd14bacd7522.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4528876/normal_5fcef7ff5abe3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499635/normal_5fda99f31ee2c.pdfIn PDF document text
    • https://kibugisire.weebly.com/uploads/1/3/4/0/134018652/7159575.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495240/normal_6050325f7d0c3.pdfIn PDF document text
    • https://galojonebe.weebly.com/uploads/1/3/4/3/134353990/nedixegezuzupe.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4479454/normal_60b759444285d.pdfIn PDF document text
    • https://vukasusig.weebly.com/uploads/1/3/4/3/134349680/8849458.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482002/normal_5fcad6cb81e21.pdfIn PDF document text
    • https://dodoxatufasiw.weebly.com/uploads/1/3/2/6/132681482/773755.pdfIn PDF document text
    • https://sokefumupuzezu.weebly.com/uploads/1/3/5/9/135991751/desozogak_nulefereta_rirutawuxapot.pdfIn PDF document text
    • https://famatogovux.weebly.com/uploads/1/3/4/6/134614416/077694f2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390373/normal_5ffc11378760b.pdfIn PDF document text
    • https://pedumodab.weebly.com/uploads/1/3/1/6/131637036/xabaxe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458837/normal_5fdf0df33f53e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486061/normal_604f492436ef4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vowetegaperi.pbworks.com/f/minecraft_pocket_edition_download_for_android_apk.pdfIn PDF document text
    • http://pefagisunel.pbworks.com/w/file/fetch/144517389/40215525754.pdfIn PDF document text
    • http://letonepamusi.pbworks.com/w/file/fetch/144437328/can_i_resign_for_personal_reasons.pdfIn PDF document text
    • http://jixerumuji.pbworks.com/f/rawavavozobubijilo.pdfIn PDF document text
    • http://ravowibosu.pbworks.com/f/btd5_deluxe_serial_key_2019.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002dcf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DCF6 20944 bytes
SHA-256: 66b6f6a5c7cd20b5db03ed53ecbce0ca40ccba7ff9434522013e76b071331097
font_01_sfnt_off0003209d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3209D 5160 bytes
SHA-256: 7c7206e71846e529013bf20fcee851661a589e6ccd6dddaea7d71f7f8b852b06
font_02_sfnt_off00033252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33252 13196 bytes
SHA-256: 64bb43af846d9ed61cb0e129091c3b96e7eb137fb6027289809c533ae8077e7b
font_03_sfnt_off00035bac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35BAC 16208 bytes
SHA-256: 386b790d1d9ce13b171fa75da4b230246976ad5417fcb3c45d956e9311ee73f2

Open this report in the interactive analyzer, or submit your own file for analysis.