Malicious PDF — malware analysis report

Static analysis result for SHA-256 6457fc80e2b10614…

MALICIOUS

PDF

77.3 KB Created: 2021-03-29 00:10:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f1682e73ac9113ff472b2e6422c55c87 SHA-1: 26dfd90f1192d3c7222cc6c7797d103dd6c74aa9 SHA-256: 6457fc80e2b106149ed714bc0f6fa2078718e77a30e5d98cb5f5492c1955382d
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a phishing page disguised as a live sports stream. ClamAV and ML classifiers strongly indicate malicious intent, specifically phishing and trojan activity. Although no scripts were directly extracted, the PDF structure and embedded URI are indicative of a phishing lure designed to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/wix?keyword=west+indies+vs+sri+lanka+live+streaming+free
    • http://zonuvak.medianewsonline.com/jufopelaturije.pdf
    • http://pazadixokumox.sportsontheweb.net/sahih_bukhari_in_roman_english.pdf
    • http://zagejudivavi.sportsontheweb.net/quality_assurance_and_quality_control_in_pharmaceutical_industry.pdf
    • http://baxijemapuzoxu.22web.org/best_free_paycheck_calculator_app_android.pdf
    • https://bafejaligaxe.weebly.com/uploads/1/3/4/0/134018432/ruvole-wobefa-lajiro-sevikutokoruj.pdf
    • https://regafuraseni.weebly.com/uploads/1/3/4/6/134663643/1518119.pdf
    • http://texivej.sportsontheweb.net/faux_calligraphy_alphabet.pdf
    • http://potusowo.22web.org/math_kangaroo_canada_2013_answers.pdf
    • https://jodisugej.weebly.com/uploads/1/3/4/7/134732418/f8a467c733d.pdf
    • https://nojabepeteguki.weebly.com/uploads/1/3/4/6/134669956/cb68b41cc.pdf
    • https://nuxelimifa.weebly.com/uploads/1/3/0/7/130776070/c424b39.pdf
    • http://xoxinusenavi.66ghz.com/resumo_sobre_o_livro_raizes_do_brasil.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jiwisigetizoxif/2245044464.pdf
    • https://51fd5013-30c4-43d1-89ce-86564632a3b5.filesusr.com/ugd/9f06f8_3c97a7aadaa74e61a559edeaa9503af0.pdf?index=true
    • https://s3.amazonaws.com/tifuwuw/vriendelike_brief_formaat.pdf
    • https://s3.amazonaws.com/wuwabobujasivor/adobe_spark_website.pdf
    • http://gixopesibesuges.epizy.com/housefull_4_3gp.pdf
    • http://dezobod.onlinewebshop.net/napimagivimamefizo.pdf
    • http://porininiji.epizy.com/android_phones_2019_unlocked.pdf
    • https://s3.amazonaws.com/mogedozara/budovufobim.pdf
    • https://0e627107-309b-4451-a84d-e7064c41fccd.filesusr.com/ugd/04c368_6817497619c2441586ea07c6b6976e1e.pdf?index=true
    • https://1e16f6d7-285b-4488-bf07-d3e24ac90e20.filesusr.com/ugd/417718_14e0e213f647465c97097b5142eb0458.pdf?index=true
    • https://s3.amazonaws.com/xuxifuzituwu/bosmere_school_uniform.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_off0000efaa.bin
795eb67799f6beb71fa644029f73460626f1e3a29d0d2b29c39bbcc9f7491157		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFAA 5364 bytes
font_01_sfnt_off000101e9.bin
0ccc361aadede29f0007be6fb5eac367c0cfdec15ae092aca6b0e5c4bdbfb7ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x101E9 10524 bytes

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