Malicious PDF — malware analysis report

Static analysis result for SHA-256 20e04293e2b4678c…

MALICIOUS

PDF

68.1 KB Created: 2020-12-16 16:10:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 87406e4f215363840277fbc65a387f2b SHA-1: dfabd7b36c6c56952149dc9091e0387fe5d7024d SHA-256: 20e04293e2b4678ca02edb73d4974295caab8dccc2d20b1a3dc92b001f1ebce8
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://trafftec.ru/123?utm_term=cat+primordial+pouch+or+fat PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4450251/normal_5fd839e3c3023.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404123/normal_5fada063e62cc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421471/normal_5fb769ca8e5b9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474987/normal_5fbbeb431717e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421471/normal_5fae79cbd0cd6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476765/normal_5fce51e61876a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc5249fd49dd124474fcf6a/t/5fc6ada0bc819f1cf4c4a3a6/1606856097302/ziradoxukajubobiwixiv.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfd2c30b6b03258f2f7c3b/t/5fc81c826652ad59ec1b741d/1606950018657/repost_app_not_showing_caption.pdfIn PDF document text
    • https://s3.amazonaws.com/susonanezaj/hoja_de_registro_de_presion_arterial.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/bichagadu_telugu_movie_songs_free_320kbps.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/kewilamepaxakujareki.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf1d961e25426e1fe1419/1606283737864/full_movie_apkgk.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/4964647127.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_off0000cfd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFD1 5124 bytes
SHA-256: 5f4a3657ec313fdc85ca580fd4c95fe4e7dcc4dbbeeec08cb1ace6881011149b
font_01_sfnt_off0000e111.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE111 10200 bytes
SHA-256: b57c941303a2df45c706c4a132742a32b9dde07ca736d56ae46ecf336e0238e5