Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8bd295010bbf1d9…

MALICIOUS

PDF

86.1 KB Created: 2021-05-30 17:06:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 143a6c37d7a826925413dbf5ce829bf3 SHA-1: 10adb328e5a059528274b59363873aebe33ace7d SHA-256: d8bd295010bbf1d9e34743eef962da24fed8455309597127ac19927aed6c8365
96 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. 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 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/strik?utm_term=bfme+1+1.06+patch+nas%25C4%25B1l+yap%25C4%25B1l%25C4%25B1r PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4406168/normal_606ac04f6cf87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403937/normal_604177b68be67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403130/normal_6060e6eac189d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405925/normal_602645917af2f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450139/normal_606378978d55b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388407/normal_601d921d85f8a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381547/normal_605876800171c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476954/normal_5fc89900cc6cc.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/34e83cce-6c35-4163-bc09-85954ec3c007/green_eggs_and_ham_netflix_season_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5afa5c82-7b98-4db1-82a3-8d331e953a65/55216003122.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8cb4ada-9112-4cfe-a5b9-6a7ba9db8168/63372751593.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f201bf5a-d036-4b43-b760-ca382f195741/wivotuma.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2acf5f9e-13a1-4cd7-a352-127522ef43ad/banedawemodop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/870de810-9151-4506-9537-f8a50a4684e0/what_is_the_beaver_scout_promise.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/86b1ba04-4d0b-452e-b80c-d7ebc8b4a991/zugojupuguvipivufo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/63ffdd50-acab-4448-9505-19a27956a746/54296646068.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10c247ae-2ec2-4348-9081-f39ff9177c65/compare_and_contrast_essay_format.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/074ecdd8-3dad-4fad-b0ae-91daf2036fdb/vugulalexixa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2e3aacf-1f46-4ef9-a5d0-0a0b8b3353a5/why_is_my_bissell_carpet_cleaner_not_suctioning.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f87b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF87B 5816 bytes
SHA-256: 33d4d9bd623944debae677ee586b6039adf8044686e0d44a4d78cf5efcb189f0
font_01_sfnt_off00010c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C3C 12448 bytes
SHA-256: 5b1cff4d91fc1cd8b1bb56d92b4b989f3515b2bcded6b96c31a681393e44a8f9
font_02_sfnt_off00013339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13339 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501

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