Malicious PDF — malware analysis report

Static analysis result for SHA-256 62d5bc0f5f6c0865…

MALICIOUS

PDF

116.7 KB Created: 2021-04-14 23:58:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: f16b7d69459a159ee0f51116a1ff94c9 SHA-1: 2c2b1ccb0104cff71c34ac1bb96adde7c65ef4d8 SHA-256: 62d5bc0f5f6c0865a279e05f22ecdb1d786c051dd19d133a379121a3cfc6832d
126 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The document contains numerous embedded URLs, with a primary focus on https://xezojetit.ru/strik?utm_term=american+gods+book+review+no+spoilers, suggesting it is part of a phishing or malware distribution campaign. The presence of PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a link farm on disposable hosting designed to obscure the true destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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 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
  • 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://xezojetit.ru/strik?utm_term=american+gods+book+review+no+spoilers PDF link annotation
    • http://libralab.digital/18742457787domjr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422382/normal_604fe23b0caec.pdfIn PDF document text
    • http://pristav.pro/what_is_the_purpose_of_internal_audit_reportkbs1v.pdfIn PDF document text
    • http://zarumesa.mypressonline.com/39093617321.pdfIn PDF document text
    • http://gekifek.scienceontheweb.net/digiland_10.1_tablet_dl1036_case.pdfIn PDF document text
    • http://maska-respirator.shop/jimmy_neutron_meme_template5bzsl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448551/normal_603de680af74a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451544/normal_6023f2ebadc24.pdfIn PDF document text
    • http://sivolejujivozul.scienceontheweb.net/bible_study_topics_tagalog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450907/normal_6052f4d554346.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
    • http://zasuzutan.rf.gd/before_accepting_an_audit_engagement_a_successor_auditor_should.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c2155c87-69fb-48a4-8086-51e848940a1c/modern_calligraphy_font_letters.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ed52bc6-c018-4705-bdf7-d35a1f2ca03c/3710198679.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/676bdb59-35c6-446f-b622-37158af241d0/11168107134.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ef79118-e132-44bb-b2a5-9eadc4f30183/does_powerade_have_calories.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/623d6b75-79a0-445b-b5b9-f65810bf355d/libro_la_meta_eliyahu_goldratt.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68b4cdac-6bd6-4185-9138-d7c9e75689de/pipud.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be5e949d-73d4-4f06-9c34-3453f81a7c29/75465921806.pdfIn PDF document text
    • http://ruruwuvatokatal.onlinewebshop.net/86077634637.pdfIn PDF document text
    • http://dupivet.epizy.com/wow_cataclysm_herbalism_farming_guide.pdfIn PDF document text
    • http://wutejaxevewef.myartsonline.com/z_score_table_up_to_10.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000136a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136A8 7244 bytes
SHA-256: 4b7cf8c80e71441ce2f4c7ac847bd4b20b52a905440688ae8a8f4e0cd1d05899
font_01_sfnt_off00014f8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14F8F 5736 bytes
SHA-256: 011811ee31b8698670bd88811bdc4843eeb44e1d8af97372cbcf1ccbeda1278b
font_02_sfnt_off00016304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16304 7632 bytes
SHA-256: 1a76b5ee27cfca57617441b6ea502c5df196b8e185b5fdc95d18fba07b76a1f7
font_03_sfnt_off0001780d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1780D 16636 bytes
SHA-256: 06b7985e1f333be97997c5a192c0d27171b77cd10f7df42dd6e9d8d38c6694ad
font_04_sfnt_off0001aa94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AA94 17176 bytes
SHA-256: 9a53d0da6d6cdbd10e88a774a06c4ee912b2d8a53651b4428de04afaee702dd9

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