Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f986f99f6134755…

MALICIOUS

PDF

57.1 KB Created: 2020-12-11 01:11:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 2f568d5d494453e588840e9a900a7096 SHA-1: 93d2a200f963a8fbb6813f1fd17a6e62d4fcbdc4 SHA-256: 2f986f99f6134755a0d52238a1ab6ee8078eb73a9624ce139529648136a92389
154 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 routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffmen.ru/strik?utm_term=i%2527m+in+the+corner+crying+lyrics In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/safenalavojuwu/looking_too_closely_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/jazamerijekufol/alkaline_2019_album.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd08283fdc31513a112dc7/1606223912965/english_vinglish_full_movie_online_free_hd_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/wetevali/abc_reporters_contact.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f677d0e-7807-432e-be80-3c9d7e7cd0b6/99602968220.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4c3ca116eb00e3c64bc56/t/5fc5c2e0e6d49a06bb5ae21c/1606796001073/greek_mythology_projects_for_middle_school.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc11c78f7cf8c75402c31d1/t/5fc74e0c4f9413233b1f019c/1606897165784/29793365833.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd08993ca23154c95cf21a/1606224025766/land_rover_discovery_2_trailer_wiring_diagram.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc52473a3bf4b14abc498e4/t/5fc7f23280e10a08e14c2b18/1606939187417/red_robin_near_me_hours.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/bose_s1_pro_instruction_manual.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_off0000a792.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA792 5076 bytes
SHA-256: 5b7b2b2abf1c13a4be17bb73726d551eedf3b1dc929f7447dbace4edb08a4c71
font_01_sfnt_off0000b8c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8C1 9148 bytes
SHA-256: 3c92705eb8714cd8e700e4c0a916b61a1c69fadacff5a4e712b796b600f0e1e3