Malicious PDF — malware analysis report

Static analysis result for SHA-256 f831946a8e087411…

MALICIOUS

PDF

301.7 KB Created: 2021-04-09 02:08:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 224727a373cdcc9c7e1f762a865c5510 SHA-1: 60d366ff5ba507d676f2f1f5d96f164f0b91e9a8 SHA-256: f831946a8e087411915ee2a3ce5f70376bcb5a6cb7dd475d7bdbe63c4103896c
94 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, specifically identified as a phishing trojan. It contains an embedded URL pointing to 'baarspo.ru', which is likely a phishing site. The PDF structure and embedded content suggest an attempt to trick the user into visiting this external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

Heuristics 3

  • 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
  • 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://baarspo.ru/strik?utm_term=supernatural+castiel+death+season+12 PDF link annotation
    • http://jarobadut.22web.org/xumavakaritevizawefawu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413016/normal_5ff91dde539bb.pdfIn PDF document text
    • http://kibidusivojigo.iblogger.org/nios_dled_assignment_front_page.pdfIn PDF document text
    • http://tamarone.22web.org/bevacizumab_side_effects.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478133/normal_600c02c76dcf4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7f71eef-1fbf-44e8-895e-79fccc1860c2/what_kind_of_jobs_can_you_get_with_a_management_degree.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/vuwozumoduxabavidufiv.pdfIn PDF document text
    • http://zamoguwudegovo.rf.gd/guide_to_intermittent_fasting_book.pdfIn PDF document text
    • https://s3.amazonaws.com/jusuberu/what_is_the_major_difference_between_program_management_and_multiple_project_management.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/323fe48f-7b03-4c8c-8893-3790ccf0e56c/607350038.pdfIn PDF document text
    • http://tuzotulerijenej.rf.gd/how_do_i_test_my_first_alert_carbon_monoxide_alarm.pdfIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/apptoko_clash_of_clans_mod_apk.pdfIn PDF document text
    • http://jugofave.rf.gd/99296433446.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1228f88a-065c-4a02-ac0e-2a20238e018f/kegize.pdfIn PDF document text
    • https://18cb0a1d-3822-48a5-9ca0-56465202bc9b.filesusr.com/ugd/96564c_7db03f76d21f4d8eb91bf91a95376aef.pdf?index=trueIn PDF document text
    • https://63aa7d51-6c54-48cc-ac87-b710a0da19c3.filesusr.com/ugd/c8d394_b91130d3b06b42d18c8d42c3deb79a81.pdf?index=trueIn PDF document text
    • http://pamajaxa.epizy.com/ge_wireless_door_chime_19297.pdfIn PDF document text
    • https://189c2d36-84ff-4b81-9465-96c33c1d3b91.filesusr.com/ugd/35ddae_a3b14319102746c99ae9ce5d1161f41a.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/60f5ec2d-4892-4424-b918-7485f43f1e7b/what_does_all_good_wishes_mean.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004a637.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A637 5448 bytes
SHA-256: 17ca5d3ca63a0636b26d35535f03b9a9339786af9a9450760138f2af6242f7cc