Malicious PDF — malware analysis report

Static analysis result for SHA-256 6002764de3fce21b…

MALICIOUS

PDF

76.0 KB Created: 2021-03-01 15:56:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9393151fbb510ee94633db847335559a SHA-1: e84b1a584a934a9829ddc9dfc82e9eab21123f02 SHA-256: 6002764de3fce21bf2158087788906bef47cafeb4f07a4ebf58c7cf406c1b594
104 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'mezovuduw.ru' with a keyword suggesting a software download, combined with a heuristic for a visual download button, strongly suggests a phishing or social engineering attack. Although no scripts were explicitly extracted, the PDF structure and external URL indicate it likely serves as a lure to download a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://mezovuduw.ru/wix?keyword=bee+movie+apk+2016+download
    • https://tesurupijirixu.weebly.com/uploads/1/3/0/8/130813669/nasifezini_musilozazisoba.pdf
    • http://bitsracing.net/old_paper_texture_word_templateq1h4k.pdf
    • http://najetaxu.mygamesonline.org/muwowukusilo.pdf
    • https://static.s123-cdn-static.com/uploads/4409246/normal_5fe39c4e82a7d.pdf
    • http://menbp.online/cheap_sheridan_sheets_online360sy.pdf
    • https://cdn.sqhk.co/dijowasedop/gfQJBha/napivolumamijafolav.pdf
    • http://pafiwuz.66ghz.com/annual_report_template_free_design.pdf
    • https://guvikaki.weebly.com/uploads/1/3/4/5/134519546/51e669dbf19.pdf
    • http://bomepufibawil.scienceontheweb.net/nobadedexinogukasifow.pdf
    • http://coolvdomaion.online/simple_present_verb_to_be_exercises_agenda_web2ec7h.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://velododitimof.rf.gd/vunovigovisatuzepokin.pdf
    • http://tinijev.epizy.com/atrial_fibrillation_guidelines_esc_2014.pdf
    • http://nejesezape.myartsonline.com/34462389909.pdf
    • 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://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e0a2.bin
8c4db6e0c6c7ad850cf46c5a3f2f1b8b5610a763a41dc9b6afaa2dce0f878565
pdf-font-stream PDF embedded font (sfnt) at offset 0xE0A2 5284 bytes
font_01_sfnt_off0000f296.bin
fe09e12cc4fd6532b64b3ae53c2cf71b21060526fb36df40e201eec5ea1bf6ad
pdf-font-stream PDF embedded font (sfnt) at offset 0xF296 10128 bytes
font_02_sfnt_off00011558.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x11558 4324 bytes