Malicious PDF — malware analysis report

Static analysis result for SHA-256 e65197d29e1019bb…

MALICIOUS

PDF

83.5 KB Created: 2021-04-04 16:56:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 11f24668da89824f424b85942cadff58 SHA-1: 5b17409f8443af1b5bbeb0ec5d74d72cd0c9cd1f SHA-256: e65197d29e1019bb95e8ad5b552402d91f316be6031537468d7eee8cf5dfe7ab
104 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a phishing lure and embeds external URLs. One of the embedded URLs, 'https://seumenha.ru/strik?utm_term=how+to+draw+a+rose+for+beginners+with+pencil+step+by_step', is directly associated with the document's apparent content, suggesting a social engineering attempt. The ML classifier and ClamAV detection strongly indicate maliciousness, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://seumenha.ru/strik?utm_term=how+to+draw+a+rose+for+beginners+with+pencil+step+by+step
    • https://cdn.sqhk.co/zojisixu/zZJggaq/sonomu.pdf
    • http://wanuzib.22web.org/cattle_beef_breeds.pdf
    • http://toteganutiv.66ghz.com/what_is_the_latin_vulgate_bible.pdf
    • http://palovedu.22web.org/sata_to_usb_converter_schematic_diagram.pdf
    • http://junedevuxojaje.22web.org/ar_blue_clean_383_power_washer.pdf
    • https://cdn.sqhk.co/jevamivuvugi/wdhhbhc/rasumujitomurulejab.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/e70fa047-35d0-40dc-a60d-c488a39ab9dc/what_is_a_direct_deposit_authorization_form.pdf
    • https://s3.amazonaws.com/xopugup/machine_embroidery_thread_conversion_chart.pdf
    • https://uploads.strikinglycdn.com/files/fb25c108-22ca-4fa1-ab72-1d682727371a/how_to_pass_utah_dmv_written_test.pdf
    • http://kagufunoziwezu.epizy.com/37605133682.pdf
    • https://s3.amazonaws.com/ropuba/junior_animal_habitats_badge_requirements.pdf
    • https://s3.amazonaws.com/jiwisi/aiims_coordination_committee_report_2019.pdf
    • https://uploads.strikinglycdn.com/files/81ebb440-939e-487f-b5b4-15c492b6e717/53065917097.pdf
    • http://zijowosep.rf.gd/xisimixuvobevutimu.pdf
    • https://uploads.strikinglycdn.com/files/33700cf7-6b92-458a-8053-61760c8623b4/79272562987.pdf
    • http://sebedugufafa.rf.gd/indane_gas_booking_application_form.pdf
    • https://s3.amazonaws.com/debiwelof/what_is_the_best_carpet_cleaner_machine_to_rent.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_off00010510.bin
99c17584ecfedae8c7ec3f4c0456aa98c96d8f1821ad0fd8722156c9037bb7e6
pdf-font-stream PDF embedded font (sfnt) at offset 0x10510 5712 bytes
font_01_sfnt_off0001188f.bin
4a194483eb992326281deea6e694c6bad53167a909228696082d7784975f126d
pdf-font-stream PDF embedded font (sfnt) at offset 0x1188F 11848 bytes