Malicious PDF — malware analysis report

Static analysis result for SHA-256 ede9aba3f7d74816…

MALICIOUS

PDF

81.5 KB Created: 2021-10-23 04:17:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: 14d29ba8599fe4bda4993aa7d07cde6a SHA-1: aebcd570ed3c858a79b2796a23ef231fe43f5ab8 SHA-256: ede9aba3f7d748163e3f9b49293f592392e8cbe31d06023cf498cbf66b611ae7
156 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to various domains, some of which are hosted on compromised WordPress upload directories. The presence of a URL containing 'football manager 2020 crack android' suggests a lure for potentially pirated software, often associated with malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://hglobaltour.com/FileData/ckfinder/files/20211008_77F17DC98F6CA2B1.pdf In PDF document text
    • http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/161556d4418694---xibalodetewex.pdfIn PDF document text
    • https://pfollowers.com/ci/userfiles/files/43267893872.pdfIn PDF document text
    • https://m-isc.com/userfiles/file/sixemavegenedenexu.pdfIn PDF document text
    • https://elsa-daulte.com/ckfinder/userfiles/files/73153088344.pdfIn PDF document text
    • http://filtrydokoparek.pl/img/all/61501594703.pdfIn PDF document text
    • http://skupka54.ru/upload/m/desuxumemojo.pdfIn PDF document text
    • http://ecme.site/upload/files/46004959388.pdfIn PDF document text
    • http://perfect-gallery.com/userfiles/file/58181156843.pdfIn PDF document text
    • https://fitvital.hu/userfiles/files/50180046168.pdfIn PDF document text
    • http://dokumsuzgec.com/userfiles/files/xaxefenedewedori.pdfIn PDF document text
    • http://scoutpate.de/userfiles/file/76509476360.pdfIn PDF document text
    • https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1615913b413541---11364906253.pdfIn PDF document text
    • http://hflbdq.com/uploads/file/020729438310.pdfIn PDF document text
    • http://bbfrontedelmare.com/userfiles/files/52195900531.pdfIn PDF document text
    • https://actorconseil.com/files/file/61491365325.pdfIn PDF document text
    • https://fleuriste79.fr/ckfinder/userfiles/files/61163834769.pdfIn PDF document text
    • http://dywin.com/uploadfile/files/fupipufu.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/tajufovaxesovepufa.pdfIn PDF document text
    • https://ozmutludokum.com/userfiles/file/47151687060.pdfIn PDF document text
    • http://vietlinktour.com/userfiles/file/62433582746.pdfIn PDF document text
    • http://machin.kr/userData/board/file/pupimidumakifowip.pdfIn PDF document text
    • https://licorne-hotel-restaurant.com/userfiles/file/dajotizato.pdfIn PDF document text
    • https://tkbhanna.com/ckfinder/userfiles/files/tapojofarisuzefajapalar.pdfIn PDF document text
    • http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1616dad21ca166---nitetelujetenogujun.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/6Zflnl449io/uplcv?utm_term=football+manager+2020+crack+androidPDF 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 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_off0000d7f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7F9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f00b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF00B 18036 bytes
SHA-256: 6db45a79d5a9a2264ddb66ca6a7f69c672009fcc66cdaffeec1eb9b6be8c6c33
font_02_sfnt_off00011ee7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EE7 10996 bytes
SHA-256: ee0fbcff3fd83aba4bd516cb1effdc247854d420c28661403165017cee516adc

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