Malicious PDF — malware analysis report

Static analysis result for SHA-256 1447cfc3f2f4e0b9…

MALICIOUS

PDF

78.3 KB Created: 2021-04-24 07:58:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 60dff6645b97967b70690fd6ae51f38c SHA-1: cc58ed1663289b4e49e690f512f8c8cac4f701af SHA-256: 1447cfc3f2f4e0b9d793781ce9d199db99211a1d5fa47f5b385eaa05e201aeef
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that leads to a phishing page, disguised as a search result for a common appliance problem. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for credential harvesting or malware distribution. No scripts were extracted, but the presence of external URIs suggests a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://bologen.ru/strik?utm_term=why+does+my+kenmore+dishwasher+not+drain PDF link annotation
    • https://cdn.sqhk.co/zarepowake/dgfzvig/vedasobil.pdfIn PDF document text
    • http://sokenogatime.iblogger.org/surofudakufo.pdfIn PDF document text
    • http://rovurota.22web.org/agonista_e_antagonista_farmacologia.pdfIn PDF document text
    • https://cdn.sqhk.co/munenetifu/jcREWhi/jexexibugagejuzakiluj.pdfIn PDF document text
    • https://cdn.sqhk.co/mevazasid/hKhbkid/today_s_date_in_spanish_with_the_year.pdfIn PDF document text
    • https://cdn.sqhk.co/zowajomi/cjeBvgh/fire_boy_water_girl_ice_temple_friv.pdfIn PDF document text
    • http://rinetiwirejux.iblogger.org/vasonajanolije.pdfIn PDF document text
    • http://laketofetujeso.medianewsonline.com/40534881082.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://zinizebaki.epizy.com/hotel_management_f_b_service_book.pdfIn PDF document text
    • https://s3.amazonaws.com/fazujo/tilavog.pdfIn PDF document text
    • https://s3.amazonaws.com/miledu/41216326806.pdfIn PDF document text
    • http://bifakafuwal.rf.gd/western_aphasia_battery_test.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/auto_breeze_cotton_candy_machine_manual.pdfIn PDF document text
    • https://e114ad41-1367-46fe-a5fd-427bf640f69d.filesusr.com/ugd/a63c55_cd298420700c4a1a851b1420bb07d0c6.pdf?index=trueIn PDF document text
    • http://lexituvom.epizy.com/kumesixomogo.pdfIn PDF document text
    • http://kixatet.rf.gd/free_harvard_business_review_case_studies.pdfIn PDF document text
    • http://peledopa.myartsonline.com/sikififegidot.pdfIn PDF document text
    • https://6c49ff76-e13b-46da-8354-2e633d56f736.filesusr.com/ugd/211c2d_4fc8c2ff5c1845308db87965f8c45dba.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/farokof/elevator_pitch_template_for_students.pdfIn PDF document text
    • http://mafojupovovod.rf.gd/bimopesebamiloritoze.pdfIn PDF document text
    • http://tapukov.rf.gd/castrol_power_1_racing_4t_10w50.pdfIn PDF document text
    • http://nifiloxoburufi.rf.gd/illustrated_man_the_other_foot_summary.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e613.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE613 5092 bytes
SHA-256: babf425b0522f3aebe903a570c8c1438af85611e3c3ba4adc00b2ac01a7a08e4
font_01_sfnt_off0000f74d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF74D 11024 bytes
SHA-256: e998367124680d00bb113e79610916386624156f79700d4cd82996b200e4aa04
font_02_sfnt_off00011ced.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CED 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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