Malicious PDF — malware analysis report

Static analysis result for SHA-256 e885eb93ac665059…

MALICIOUS

PDF

71.3 KB Created: 2020-11-20 02:45:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 75f69294a7b9fd0f3ccfccc00a72e57d SHA-1: 920ae0b14b7b99cfa101158eee3258c52be9425a SHA-256: e885eb93ac665059180838001879d2da24bab23e94a75a9e19b19078a2391135
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 0.9997

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://traffking.ru/123?utm_term=brother+mfc+8710dw+printer PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374708/normal_5f9280dabd1d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366336/normal_5f89c92bc74b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383131/normal_5fb6db69a6e20.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413575/normal_5fb02cb39bdc9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366976/normal_5f9cc763d391f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/blame_bastille_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/kettering_high_school_detroit_mi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53f00eb0-87c2-4299-9a78-780c3969e193/69138603332.pdfIn PDF document text
    • https://s3.amazonaws.com/punagilelabon/pixel_strike_3d_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/tesujejoxofirutotox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/095c67be-b897-415e-9240-d8abe0de650d/53626993345.pdfIn PDF document text
    • https://s3.amazonaws.com/nopomewegobij/50821030461.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_off0000d926.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD926 5584 bytes
SHA-256: d40ffc8e776aff03a74bb7ad1e2b502e575cb4d7d0c7c638dde7162a6a33c85d
font_01_sfnt_off0000ec21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC21 10824 bytes
SHA-256: 596ff7d216daf393cf1f6014b01579a25151b6bd9c12c203ff9f6b35a63d2fe3