Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c5e021d5f2a41b4…

MALICIOUS

PDF

78.0 KB Created: 2021-05-06 03:27:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c9fcac4bdb48a4e02fc9fe2dad1f1eb1 SHA-1: ee66112b5d09d9998ed1bdd8caaedcdfbf0fa651 SHA-256: 9c5e021d5f2a41b411836db6cab7a05d2a016bd3be5450e19a6f8671e2278ebf
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains embedded URLs that lead to suspicious domains, suggesting a phishing or credential harvesting attempt. The presence of external URIs and the overall detection as a 'Pdf.Phishing.Trojan' strongly support a phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/strik?utm_term=new+testament+reading+plan+120+days
    • https://cdn.sqhk.co/fiwujumejuf/NjgVfox/nugebotowamoso.pdf
    • http://finofubamu.mygamesonline.org/69143819165.pdf
    • http://13millions.store/kadamban_video_song_hdj8xqz.pdf
    • http://sberbank.services/analog_photography_andrew_bellamyntkfc.pdf
    • https://cdn.sqhk.co/genamudazunu/hhjigsh/64975996887.pdf
    • https://cdn.sqhk.co/fefavezevir/zihi5he/56757625762.pdf
    • http://finoginujowiwi.mypressonline.com/debt_capital_markets_analyst_jobs.pdf
    • https://cdn.sqhk.co/losomilodip/hbUghji/excel_chart_template.pdf
    • https://cdn.sqhk.co/banuluwopote/hahdDTv/guide_succes_human_fall_flat_game_2020.pdf
    • http://kyponnik.online/example_base64_stringj6qbs.pdf
    • https://cdn.sqhk.co/gogojelawov/gigP9ia/85382449294.pdf
    • http://help-igcopyright.xyz/c_programming_software_for_windows_10_free_downloadmivk4.pdf
    • http://qlemelest.online/cricket_score_sheet_format4swzx.pdf
    • http://idealicaitaly.site/xopaxeb0pg48.pdf
    • http://reetodo.online/how_to_conduct_textual_analysisunez1.pdf
    • http://suwefazimim.medianewsonline.com/xikupukomodonupegudonasa.pdf
    • http://wowogobofomufu.mygamesonline.org/guvivebixifedopo.pdf
    • https://cdn.sqhk.co/penuvipaw/oieghDo/nonegazojesemazurufak.pdf
    • https://cdn.sqhk.co/vulasobifow/iaFgFnm/new_hire_announcement_powerpoint_template.pdf
    • http://migipobazu.mypressonline.com/83894593396.pdf
    • https://cdn.sqhk.co/lepowabog/iajjgfo/votivogibawa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xijewixevav.onlinewebshop.net/brokenness_surrender_holiness.pdf
    • http://noratev.myartsonline.com/maruwokebadibipinejek.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3d6.bin
2542c83efca1ecdc1ff518b3c9792df3ca4f9cba4f34dd768af861432261db4a
pdf-font-stream PDF embedded font (sfnt) at offset 0xF3D6 5768 bytes
font_01_sfnt_off00010783.bin
0a0807c9a029d0c9ad477fa1ef4a90ba7e27df5184aa846ae79bb471940adf1c
pdf-font-stream PDF embedded font (sfnt) at offset 0x10783 10332 bytes