Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dcd6ed91bae94b5…

MALICIOUS

PDF

73.2 KB Created: 2021-02-02 04:44:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: beeff7acc508428061734284629cbe72 SHA-1: a14ec4938a10276b3e2fe52feb774bfd07537a89 SHA-256: 6dcd6ed91bae94b5f4efc36384861ae52bdef3ff3b451302ab604617024d5429
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/aws?utm_term=harbor+breeze+ceiling+fan+manual+pdf PDF link annotation
    • http://strita.space/xixiduv5n7d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410020/normal_5fd63c5a546ff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367305/normal_600f5471632a1.pdfIn PDF document text
    • https://pesefusuf.weebly.com/uploads/1/3/4/4/134486856/255828d94bc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470835/normal_5fd91ba04e88c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379043/normal_5fe41da70dc89.pdfIn PDF document text
    • https://guzokilib.weebly.com/uploads/1/3/2/7/132741743/3618193.pdfIn PDF document text
    • http://todolosepaxo.iblogger.org/46900746505.pdfIn PDF document text
    • https://faripolugariwel.weebly.com/uploads/1/3/1/4/131453512/a4cdd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393898/normal_5fcb2bb599224.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421051/normal_60057de6b02c8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mujasanowagug.epizy.com/irritating_ringtones_for_alarm.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/waldensians_catholic_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zedilegol/67932678189.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/malignant_transformation_of_pleomorphic_adenoma.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE052 5448 bytes
SHA-256: d9ded505ef9faaf14bcd18776c2f46427d1a997e4f83bbb314694b1a23ec6c0c
font_01_sfnt_off0000f2c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C8 10940 bytes
SHA-256: 0f28ab87e6dbe7da344dc176dc6d2d1e4560a0ac542e72aca7f8f7768cb7793e