Malicious PDF — malware analysis report

Static analysis result for SHA-256 eddb827eac6edc2d…

MALICIOUS

PDF

75.1 KB Created: 2021-02-18 04:49:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 1b3181b35c1b660b2db1c6fc650904a8 SHA-1: 6dd1451d4816dfef64eb8af63d93489b3b6df5ee SHA-256: eddb827eac6edc2d468491993fced7d24ee6dd8114d1068b411bb0d6b9c00d5e
156 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified as a link farm, suggesting a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly indicate malicious intent. The embedded URLs point to various PDF files hosted on external services, likely serving as a redirection mechanism to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://baarspo.ru/123?utm_term=how+to+pressure+cook+instant+pot+duo+crisp PDF link annotation
    • https://xoruvuxana.weebly.com/uploads/1/3/2/6/132696063/8913585.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369525/normal_602b099fd99d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498893/normal_6003d53b711b2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462379/normal_5fe50f87c7144.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480748/normal_5ffc984a2db26.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/fdifgjn/30380322753.pdfIn PDF document text
    • https://cdn.sqhk.co/malevevipali/1lhfa5K/walking_dead_no_man_s_land_weapons_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465688/normal_5fd7fa811c1a9.pdfIn PDF document text
    • https://cdn.sqhk.co/jememobak/aPbjjos/dialogflow_cx_agent.pdfIn PDF document text
    • https://buvaranugabenu.weebly.com/uploads/1/3/0/8/130873820/digim_kaweligozipa_dajasikidoko.pdfIn PDF document text
    • https://komijeji.weebly.com/uploads/1/3/1/6/131606126/xotorud_bikalaf_tatowe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409258/normal_60084f2a9de4a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421473/normal_602533814fc30.pdfIn PDF document text
    • https://pepomujotopulog.weebly.com/uploads/1/3/4/8/134873529/734355aef40ea.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369631/normal_600a1838bd713.pdfIn PDF document text
    • https://cdn.sqhk.co/miwiwefe/2WVebie/rock_music_ringtone_song.pdfIn PDF document text
    • http://paxebuli.iblogger.org/diabetes_educator_journal_author_guidelines.pdfIn PDF document text
    • https://cdn.sqhk.co/pabelewexo/iajhjaZ/planetary_alignment_2020_today.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492250/normal_5fc5723bd1502.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bikumomobopo.rf.gd/79203333631.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_off0000e8e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E5 5152 bytes
SHA-256: 836c58a6b9391d970873bdd3fe1a5fc32d94359cedfd3307309c6a3a32d72eb8
font_01_sfnt_off0000fa8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA8F 10760 bytes
SHA-256: 7b5a975b430ced0f4cfabf421b83eded1d1cea8c9baaf37b966502607e1fc2c8

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