Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc298b392093b65f…

MALICIOUS

PDF

63.4 KB Created: 2020-11-11 06:19:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: da460183f9f110c9077d2b8d6f028980 SHA-1: 97a920ca449566b0ec19019abb271be9cd92a59c SHA-256: fc298b392093b65f3e16acba6025560793eff365cef718170ccfad0bfd77651c
96 Risk Score

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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffnew.ru/aws?keyword=toytale+rp+codes+list PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413019/normal_5f96cd602520e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453328/normal_5fa83d926a763.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365649/normal_5f86f7a9360ba.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409607/normal_5f97b9dc4f1d2.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/cfe9c636-e59d-46ef-9a98-9e71c8779e8d/viluvafivika.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cb3091d5-dc53-4ac9-a29a-ca775413ca61/98285893038.pdfIn PDF document text
    • https://s3.amazonaws.com/risalenefazozo/kitiwibalipexalilapuvujem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5af307d3-9c3b-4a02-841e-eee235046c8e/the_current_atomic_model_has_a.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b37d1b2a-be70-4c91-aba3-f889dbaa106f/46008808138.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b72947ab-f0f1-4aed-99c3-79a3440072ff/eu4_manually_install_mods.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ae7bbb3f-01fc-40b4-ade3-74f2116400e9/kufijexivaguragezokuvebon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93ff498a-205a-4496-9b8b-5cebe9216728/pekawamabakinuledogufeli.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/right_angles_in_real_life.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_off0000bd99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD99 5120 bytes
SHA-256: 23ebac9e577295cde02b59d4921d8ca17a2261fdfd1cf2e606b974957d0ebf59
font_01_sfnt_off0000cf15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF15 9988 bytes
SHA-256: eba7acafdc22874f9d5ec01c2e23da0dba0341ada3e09bb2ecacfe1486512f65