Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff94fe4288141419…

MALICIOUS

PDF

60.2 KB Created: 2020-11-19 02:45:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 928e314029b5158025c3c98f78954cfa SHA-1: 43fa5af3b42877f661936a2dbacd3ae70bdbc50f SHA-256: ff94fe4288141419b6ff1d8a3ba8ec9564bb5c0a79616d8c1a4b8e7a7f9516a6
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains an embedded URL that leads to a suspicious domain, likely intended for phishing or malware distribution. The PDF's metadata and body text also reference this URL, reinforcing the phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/strik?utm_term=richelle+ryan+booty PDF link annotation
    • https://kabudededawizo.weebly.com/uploads/1/3/1/3/131383409/6ec94.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/5ec66baa-06f8-4520-95ad-b3c70c6e3fe1/pentagon_shape_define.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9544f01c-cce5-46bc-b118-c071aa99148e/48004271816.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/65857113-0e96-47fd-8607-80fd44549444/64992183844.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/census_2011_in_gujarati.pdfIn PDF document text
    • https://s3.amazonaws.com/xanebavifamopez/97591688894.pdfIn PDF document text
    • https://s3.amazonaws.com/nakevoja/alameda_county_district_map.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c4a3c3c3-db78-426b-bd61-b748c492d3ff/oxford_phonics_world_2_workbook_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/boss_movie_hd_filmywap.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/xurazodijegopavimi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6f77207-dc1a-40d2-ae38-7c02ca332c55/sujemasewi.pdfIn PDF document text
    • https://s3.amazonaws.com/jijumupade/movie_fifty_shades_darker_download.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_off0000ae85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE85 4956 bytes
SHA-256: e4367a149e6cd7c78be37ee0d9feeda401fc2d4536e33339fd39f2ece593a33d
font_01_sfnt_off0000bf67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF67 10936 bytes
SHA-256: ba9cf0f91a7d28012efda2f462802df8b329495bcb14924bdf037453c8eb5cde