Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa9b2d2710956a2d…

MALICIOUS

PDF

424.8 KB Created: 2022-05-30 10:44:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2022-07-15
MD5: 7283a95910e8026bdaf7b198863a89a0 SHA-1: 9bd57f55641d44eeae8f265772798774976a9489 SHA-256: fa9b2d2710956a2de08f4d8da601faf9b8ef6d7af44bd9ab146e2c8a63544632
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a 'Pdf.Phishing.Trojan' signature. The presence of multiple external URLs and a heuristic indicating a 'download button' lure suggests the document is designed to trick users into downloading further malicious content. Although no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4712

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ragaz.co.za/XSRYdR1H?utm_term=toefl+essay+sample+answers+pdf+printable+form+pdf+format PDF link annotation
    • http://cataga.de/beta/files/file/kikiletafafekoriti.pdfIn PDF document text
    • http://everest-c.ru/ckfinder/userfiles/files/46692050740.pdfIn PDF document text
    • https://fallsplat.se/bildbank/file/26159847648.pdfIn PDF document text
    • https://raxuvupu.weebly.com/uploads/1/3/4/7/134707125/fifajirukikijosu.pdfIn PDF document text
    • https://migger.dk/userimages/file/29080465880.pdfIn PDF document text
    • https://gumewixolasadaz.weebly.com/uploads/1/3/4/6/134659592/tutiwubukigose_bezuxakuw_lazub.pdfIn PDF document text
    • https://mamonesobekemi.weebly.com/uploads/1/3/4/3/134320903/kopuwazuruli.pdfIn PDF document text
    • https://fadefewili.weebly.com/uploads/1/3/4/3/134316521/4834932.pdfIn PDF document text
    • https://relaxbotanika.cz/ckfinder/userfiles/files/20230628335.pdfIn PDF document text
    • https://xopilujipuwoka.weebly.com/uploads/1/3/4/8/134886601/5328895.pdfIn PDF document text
    • http://80tner.friend-match.com/upload/files/38155501903.pdfIn PDF document text
    • https://parkettworld.com/upload/files/gobinigujajoxojesev.pdfIn PDF document text
    • http://bluebiz.kr/userData/board/file/5121689844.pdfIn PDF document text
    • https://tabikajodunel.weebly.com/uploads/1/3/0/7/130739544/favufugik_lubuxaliperilo_xonovubabix_pisavevakatog.pdfIn PDF document text
    • https://sijifoliketumaf.weebly.com/uploads/1/4/1/4/141453867/gepej.pdfIn PDF document text
    • https://miwawedunosojoz.weebly.com/uploads/1/3/1/6/131606480/nabekive_tajuxanejor_xigenujororamoj.pdfIn PDF document text
    • https://efficimm.fr/userfiles/files/4469305423.pdfIn PDF document text
    • https://lhdgv.ca/lpch2010/userfiles/file/51644669057.pdfIn PDF document text
    • https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1620c2e307dac7---4370448751.pdfIn PDF document text
    • http://indianamartialartsfitness.com/flash/indianamartialartsfitness.com/file/zojorasu.pdfIn PDF document text
    • https://rizizisexulap.weebly.com/uploads/1/3/1/4/131407181/22b7f.pdfIn PDF document text
    • http://ecohouse-lab.de/userfiles/file/dewexubulip.pdfIn PDF document text
    • http://kfnmdg.com/upfolder/e/files/20220421090813.pdfIn PDF document text
    • https://casacresques.cat/uploads/files/fubufogijeleziv.pdfIn PDF document text
    • https://xizovetezewo.weebly.com/uploads/1/3/2/8/132814166/wubixifewuru-bavakofim-nologud-pujeke.pdfIn PDF document text
    • https://equinox-e.com/upload/files/87089657109.pdfIn PDF document text
    • https://nunigagajil.weebly.com/uploads/1/3/4/7/134751499/7fa4ce.pdfIn PDF document text
    • https://moxetutatag.weebly.com/uploads/1/3/4/2/134234950/9866837.pdfIn PDF document text
    • https://prizmaemys.com/img/files/72717678095.pdfIn PDF document text
    • http://iwebcambodia.com/admin/kcfinder/upload/files/fezekemebinesotanewami.pdfIn PDF document text
    • https://mayxaydungthienlong.com/uploads/files/files/39743036738.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_off00063613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63613 10960 bytes
SHA-256: 3f001d68bf614a3d4528fb188d5cabe0111626de8f62eaf790348fd66b9b2791
font_01_sfnt_off00064f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F5A 17164 bytes
SHA-256: 70734beaa2023402cf90ace3da2aa0a00b20aa6652b5b48ec7ccd49552f72e02
font_02_sfnt_off00067b79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B79 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1