Malicious PDF — malware analysis report

Static analysis result for SHA-256 48c9fba9b701f61b…

MALICIOUS

PDF

79.6 KB Created: 2020-11-28 15:55:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c101fdd5ab94532bde16bc39f37629b6 SHA-1: 22a31203d18423a718bf31d07780d71c3be26366 SHA-256: 48c9fba9b701f61b45545057862de53393cbbd9def521d140bd2593d2846d718
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://trafficel.ru/123?utm_term=tulku+urgyen+rinpoche PDF link annotation
    • https://wuzajamepoxomis.weebly.com/uploads/1/3/4/0/134096323/vigakalabukideropuj.pdfIn PDF document text
    • https://nasolebad.weebly.com/uploads/1/3/4/6/134695036/bibikavoze.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417207/normal_5fada4fa3b4ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371269/normal_5f9f6870c9271.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374021/normal_5f8efd07ef008.pdfIn PDF document text
    • https://xexezakofiwojuv.weebly.com/uploads/1/3/4/3/134372147/3c38b2c2c.pdfIn PDF document text
    • https://wipaluxeko.weebly.com/uploads/1/3/4/3/134346688/dadufu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407571/normal_5f97e980f3aa4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476434/normal_5fb9755a2acb5.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/ec27385d-4cb4-4c93-9f3b-23ee7536616b/disijuvopipurogaxedifapi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27e53891-9696-4be9-9d15-f675063e4f43/37043747292.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9c0bd71b-c426-4f15-ae37-391ef0e241d7/vanomamiwevepad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45e41529-352c-491c-9008-89e908651393/super_mario_kamek_coloring_pages.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2a1f319-acec-48ec-a72e-431169f78309/best_warframe_for_farming.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_off0000fd39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD39 4924 bytes
SHA-256: da5e68dcc791cbc4fe9eefe2bc4213da0e59f30ab32af884b3f7884af11d74e5
font_01_sfnt_off00010e0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E0A 10568 bytes
SHA-256: 6bfe8f806dd88c9421430006aee2ffe6816eaa819a7ca81394c4cbee7bb53444