Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbe1e341a0940c5a…

MALICIOUS

PDF

86.2 KB Created: 2021-06-28 21:54:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 2ae1bb3e824b679b8a621e387aa96ff3 SHA-1: 44bcbdc479f8613c3e29553adc1f82205706ac5d SHA-256: bbe1e341a0940c5a2f7e590e502617bb545cd6cd45b53dff9ace437230f378a2
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF was flagged by multiple heuristics as a malicious advance-fee scam lure, specifically mentioning lottery, prize, or parcel delivery themes. The ML classifier also strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to redirect users to potentially compromised websites hosting further malicious content or phishing pages. The presence of numerous unknown URLs on disposable hosting further supports this.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/a766r2o78el00rs130k5l25t92/wirisuf.pdf
    • https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/khhaph9utmbjale462sj5ehch0/56560399802.pdf
    • https://bibliothequeanglaise.org/upload/files/xuvelonopatafudi.pdf
    • https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/8f755c918d1c9f91923b443edd36644f/rolivemugatekezokap.pdf
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607bab4a40161---podot.pdf
    • http://traiteur-ribot.fr/userfiles/file/26370673714.pdf
    • http://chickenwild.com/upload/contents/images/images/webuwita.pdf
    • https://netpage.info/userfiles/file/61883931118.pdf
    • http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/160955681b8daa---97726727485.pdf
    • http://doks-films.com/pcms/content/file/18077559981.pdf
    • http://bioident.pl/photos_fck/file/vikawigupekixofamu.pdf
    • http://aklond.com/UploadFilesfile///2021050117242132.pdf
    • https://senfina.top/uploads/files/32841278677.pdf
    • https://rhdplumbing.com/wp-content/plugins/super-forms/uploads/php/files/4079b0c29285aef1c581102ebad71d6c/11943630860.pdf
    • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160727816b8b3a---29960588897.pdf
    • http://cellesekorea.com/ckupload/files/85529305985.pdf
    • http://xn--9p4b29dncp2cc6y.net/upload/fckeditor/file/69847986773.pdf
    • https://planet-for-events.de/userfiles/file/votitixetufowebujaget.pdf
    • https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/c1bcebed9cbc2bf5661cd5467c00e3f5/mikonoxebav.pdf
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/3o6r6g39o3b6qd8r429f9uh2c3/xulasosixadezufezaroriz.pdf
    • http://bclgrouptt.com/userfiles/file/23202017934.pdf
    • http://mhs69indians.com/clients/864804/File/88000500458.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=house+of+night+marked+pdf+free+download
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edc2.bin
2f0b235b6ebe05bb554f5c0d79c8c57fe2e7361ab0e55c231a310f0d0183fdfa
pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC2 11212 bytes
font_01_sfnt_off0001079f.bin
0da517fba6bde035288e4f788e047a8b834f289ace496de6b8aa7fae0d4783a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x1079F 16800 bytes
font_02_sfnt_off000133a7.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x133A7 16792 bytes