Malicious PDF — malware analysis report

Static analysis result for SHA-256 942932bb3acc802f…

MALICIOUS

PDF

244.3 KB Created: 2022-05-12 09:45:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: b5cde63a8a5f054e1f057e7d64f3b5a0 SHA-1: a265ef4a30177751569d7a6ed1054eb51f792b2c SHA-256: 942932bb3acc802f17a186eaf5a240819a1d884f057db82262794b14c3781714
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and external URIs, indicating a malicious intent to redirect users. The heuristic 'PDF_SEO_UTM_REDIRECTOR_LINK' specifically points to a phishing lure disguised as a free download. The ML classifier and ClamAV detection further support the malicious classification. The primary IOC is the redirector URL used in the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7639

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://lovig.co.za/XSRYdR1H?utm_term=eheim+canister+filter+2217+manual+user+manual+free PDF link annotation
    • https://kuximakid.weebly.com/uploads/1/3/0/7/130739256/pimul-xuxirikimisa-desidom.pdfIn PDF document text
    • https://atlastoursntravels.com/userfiles/file/lozenokulatexemut.pdfIn PDF document text
    • https://fukikabigo.weebly.com/uploads/1/3/4/4/134457586/229184.pdfIn PDF document text
    • https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1620c601de1f19---57267134469.pdfIn PDF document text
    • http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1623a05b474aed---sexolafajevuvi.pdfIn PDF document text
    • https://jakidanumamew.weebly.com/uploads/1/3/4/8/134881834/3f7b3cdcc.pdfIn PDF document text
    • https://villagrancanaria.bookipro.com/js/libs/ckeditor/plugins/kcfinder/upload/files/kitilezupuvoxexo.pdfIn PDF document text
    • https://pipepolubewaxa.weebly.com/uploads/1/3/4/7/134709371/mamiturasopug.pdfIn PDF document text
    • http://sunmoon-glory.com/web/upload/files/62052756678.pdfIn PDF document text
    • https://fulimutalez.weebly.com/uploads/1/3/4/5/134599943/detikalu-vusugev-gagorig-nopapuxiro.pdfIn PDF document text
    • https://gojotarobede.weebly.com/uploads/1/4/1/5/141505714/2575292.pdfIn PDF document text
    • https://zararixolaligi.weebly.com/uploads/1/4/1/3/141344050/gabawezagufejoxa.pdfIn PDF document text
    • https://vevusivo.weebly.com/uploads/1/3/0/8/130874001/5266649.pdfIn PDF document text
    • http://xn----7sbev0bhje.xn--p1ai/images/news/file/86359718769.pdfIn PDF document text
    • https://liburesaxus.weebly.com/uploads/1/3/4/3/134372769/sevagaji-bijamikigunan.pdfIn PDF document text
    • https://tawuzipufuk.weebly.com/uploads/1/3/4/7/134707118/ginefikoridiwekato.pdfIn PDF document text
    • https://buvijomos.weebly.com/uploads/1/4/1/2/141258505/0811b.pdfIn PDF document text
    • https://rivisoni.weebly.com/uploads/1/3/0/7/130739016/7810870.pdfIn PDF document text
    • https://kerekemanoniser.weebly.com/uploads/1/4/1/3/141322617/4398675.pdfIn PDF document text
    • http://falcon.dk/sites/default/files/webfm/47253190817.pdfIn PDF document text
    • https://www.pu-sk.com/app/templates/js/ckfinder/userfiles/files/zibizadogikizobafewug.pdfIn PDF document text
    • https://christavedelaar.nl/bestanden/files/64691691370.pdfIn PDF document text
    • https://nanukofufo.weebly.com/uploads/1/3/7/5/137516761/fujuta.pdfIn PDF document text
    • https://przedszkolenisko.pl/userfiles/file/kiwozujobesewaxa.pdfIn PDF document text
    • http://funagamex.vn/PhuongNamGroup/userfiles/files/87517763135.pdfIn PDF document text
    • http://nuestratierrapremios.com/campannas/file/82002619089.pdfIn PDF document text
    • https://lutafutenitar.weebly.com/uploads/1/3/4/3/134381418/vavidevup.pdfIn PDF document text
    • http://jlssj.com/qianzi/upfile/case_editor/file/wuxukemesiwipiwot.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000336cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x336CF 17864 bytes
SHA-256: e55a90d1b53412cbbe26914197374eafa94a9c6ccdfd2615127ebcf9b0d3101a
font_01_sfnt_off000364d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x364D1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00037cdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x37CDF 13700 bytes
SHA-256: c2121ab4887d40e37c5dcc6ce88712655c42572d549ace547e89b657fe931e52
font_03_sfnt_off0003a820.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A820 10784 bytes
SHA-256: 029fe7b6124f263c80f88983dd2355f2779a22212cf74d6b398dc7e125db5e33

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