Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fe02fb7593c1dfd…

MALICIOUS

PDF

71.8 KB Created: 2021-02-18 08:40:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 3f62cdddcb8f6128b1a418072d6e7d0b SHA-1: e07ec2428dcdebbb3a4d3e93404a690c24beaf80 SHA-256: 6fe02fb7593c1dfdb4da81b800fb6a2cb3615f094d080db7f5a076bb0ba10714
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'crophysi.ru'. This indicates the document is designed to lure users to a potentially malicious site, likely for phishing or malware distribution. The ClamAV detection and ML classifier further support its malicious nature. Although no scripts were extracted, the embedded URL and redirector heuristic strongly suggest an attempt to deliver a second-stage payload or phish credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://crophysi.ru/wix?keyword=enacfire+manual+pdf In PDF document text
    • https://static.s123-cdn-static.com/uploads/4498992/normal_5fca102ea10dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498348/normal_5ff11650e188a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422877/normal_5ffecf0fd5d1c.pdfIn PDF document text
    • http://masito.space/49301072808j89p8.pdfIn PDF document text
    • http://jigitozunawada.66ghz.com/probability_worksheet_for_grade_6.pdfIn PDF document text
    • http://levelupguild.com/23416253145qn558.pdfIn PDF document text
    • https://cdn.sqhk.co/takoxuwal/cZjbVeK/green_party_2020_ballot.pdfIn PDF document text
    • http://rabota-plus.club/what_is_the_meaning_of_plot_and_plot_structurekvqt5.pdfIn PDF document text
    • http://helplnstagram-confirm.com/82975748254iywc9.pdfIn PDF document text
    • http://rujawobezixevib.iblogger.org/87101317191.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jewizopukuni/36409984927.pdfIn PDF document text
    • http://miseparasunafit.rf.gd/bethlehem_pa_police_accident_reports.pdfIn PDF document text
    • https://s3.amazonaws.com/davawina/57094364708.pdfIn PDF document text
    • https://s3.amazonaws.com/wusigipufuvowix/rachmaninoff_prelude_in_g_sharp_minor.pdfIn PDF document text
    • http://dasubaweno.rf.gd/grey_s_anatomy_episode_guide_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/scratch_2._0_free_for_windows_8.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA4 5080 bytes
SHA-256: bc67fc544dbdbfa855e81592e266dd75220e5e5c75c9afad0a20d80975ecd94d
font_01_sfnt_off0000ecdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECDB 11172 bytes
SHA-256: fcd89ae28987910dbf52b1a090bb1511c96619d66532cfcf0af6a4e523281d78

Open this report in the interactive analyzer, or submit your own file for analysis.