Malicious PDF — malware analysis report

Static analysis result for SHA-256 38542ac7a7c5e561…

MALICIOUS

PDF

76.5 KB Created: 2021-05-22 20:49:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 45cde4c73bf2ede00ad55a9ed7a9407b SHA-1: 128bdf9d0443b3e625243c092770015ba58d7f6a SHA-256: 38542ac7a7c5e561dbac4c3cdd32afabb1b61f3753f9b4fb5f8b99190d6279d3
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://mezovuduw.ru/strik?utm_term=how+do+you+spoof+pokemon+go+android+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4478133/normal_6047eca52d056.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446502/normal_5fcdc0c8d938d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491433/normal_5fe6c8d896b38.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477401/normal_6060c52c7841b.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/13ae118f-0b73-4905-9f4f-3bdf778c42e1/21549629752.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/065bba5c-5075-4f17-b114-904a04436ade/nlp_techniques_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f22fba5-55c5-4c61-aac8-50edabec6315/error_preview_handler_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/2613655477.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5ebdce9-96f3-4f5f-9c3e-f202bd32b9b4/53107615852.pdfIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/wituraneluwalakeluwuwu.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/jekiwevaxuwonenavosinovin.pdfIn PDF document text
    • https://s3.amazonaws.com/xalexojaxipud/how_to_use_photo_paper_in_hp_envy_4500.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58fe5229-1355-4800-80e9-8e21454bc25e/nilanaxaperonizesokafaku.pdfIn PDF document text
    • https://s3.amazonaws.com/xesigeze/is_defending_jacob_gonna_be_on_netflix.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/ibps_guide_june_month_capsule.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc6e9f55-3071-4fec-ac0d-d1828df31ba4/bilojipunexarojapuwapib.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0abfc522-1d11-41ea-ac0a-5bbcfa086ce7/sports_illustrated_swimsuit_issue_sales.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5203a7c6-6c1d-4df2-959c-9794b43794e8/fomewulodoxogavuf.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC9E 5820 bytes
SHA-256: 21cf817695c381e77a0ca406f2f62980bb1c3b74eb76bf1313b5b6360e96726f
font_01_sfnt_off00010074.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10074 10724 bytes
SHA-256: 2148b08857c6e148763ffc6ded4bfe0fd3a01b1731fc8596673921bdeaa57d5f

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