Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1f0615d6c1ce8a8…

MALICIOUS

PDF

72.0 KB Created: 2021-06-07 12:20:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8abbae69d14a0a6e6e2a9474a01c8d95 SHA-1: 1533cd0072a8a3130e344a671b97bef8a53653ea SHA-256: d1f0615d6c1ce8a8de89fc5cba47d912659a84d5cccadc395297a52a532f2c95
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document contains a large number of external links, many pointing to disposable hosting services, suggesting a link farm or SEO spam campaign. The presence of a ClamAV detection for 'Pdf.Phishing.Trojan' and ML classification further indicates malicious intent. The document's content, though obfuscated, appears to be a lure related to 'Icis pricing report', likely to drive traffic to malicious or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8482

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://pistant.ru/pbw?utm_term=icis+pricing+report PDF link annotation
    • https://sowibize.weebly.com/uploads/1/3/5/3/135348762/fa0145eb6.pdfIn PDF document text
    • https://tokoposejod.weebly.com/uploads/1/3/1/3/131380771/b2d95.pdfIn PDF document text
    • https://genamimiwovem.weebly.com/uploads/1/3/1/6/131636881/xewupomezilet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb437a4b-0ce9-4b81-a39a-d71d913d7e1c/gilokedu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0a94d89-f722-4daf-9aca-509e856b25a0/a_son_is_a_son_quote.pdfIn PDF document text
    • http://pilujibos.pbworks.com/f/52023223545.pdfIn PDF document text
    • http://puzavofan.pbworks.com/f/zajegezipezamox.pdfIn PDF document text
    • http://bofamawetodo.pbworks.com/f/can_you_use_a_ps4_controller_on_minecraft_pe_ios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e301965-38ad-4b01-8ddc-470d072a0ca3/counter_strike_1.6_full_version_free_download_for_windows_7.pdfIn PDF document text
    • http://ruwomodanom.pbworks.com/w/file/fetch/144469950/la_grande_tribulation_de_jerusalem.pdfIn PDF document text
    • http://disisopaz.pbworks.com/f/simple_compound_complex_and_compound-complex_sentences_exercises.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be3f4aa6-207e-4250-bee6-55bf0a7db100/54492644003.pdfIn PDF document text
    • http://lokuwulixit.pbworks.com/f/tubudaja.pdfIn PDF document text
    • http://tujelupirobe.pbworks.com/w/file/fetch/144614331/goat_simulator_payday_free_download_android.pdfIn PDF document text
    • http://sutodoromar.pbworks.com/f/employee_training_database_template_excel_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/05a06734-9685-497d-b8ee-586441f1fba5/rawupozulezoxozos.pdfIn PDF document text
    • http://pifiloxema.pbworks.com/w/file/fetch/144736767/how_to_get_your_instagram_followers_active.pdfIn PDF document text
    • http://mapijakemifo.pbworks.com/w/file/fetch/144433281/vazemajumit.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df4de43b-d66e-43de-a14b-75d3a8bad857/tork_light_timer_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8309cec5-f468-4685-91a1-615bc89e3293/what_does_a_blue_iris_symbolize.pdfIn PDF document text
    • http://sakulibur.pbworks.com/w/file/fetch/144697278/types_of_speech_acts_locutionary_illocutionary_perlocutionary.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d9ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9CA 6492 bytes
SHA-256: a8319a011db5808c54d49a210bde1de5ee2ff4dd78004fe226c233b8938dee43
font_01_sfnt_off0000f019.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF019 4796 bytes
SHA-256: daee556744566ae304140f753ab8ce96eea60482662434af812e8d47a2eb02a8
font_02_sfnt_off00010077.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10077 5812 bytes
SHA-256: acd9abe36e4ddf506b3cdda254529c3e82fde0706dea23a2d4078e32bd76a8fc

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