Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8e524e508a1a639…

MALICIOUS

PDF

70.9 KB Created: 2020-11-30 11:47:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 77b47bedc26f34af864165bb18c10b88 SHA-1: d53158aec4ef899544cd0614836e0f3dafb12fda SHA-256: d8e524e508a1a6394a6f34fa2062d32494ae802eb12edc76dc8385ca375c1256
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ggtraff.ru/123?utm_term=mm2+godly+list+2020'. This indicates the document's primary purpose is to lure the user to this malicious site. The ML classifier and ClamAV also flagged this PDF as malicious, supporting the phishing or malware distribution intent. No scripts were extracted, but the embedded URL is sufficient evidence for the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://ggtraff.ru/123?utm_term=mm2+godly+list+2020 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4380078/normal_5f8fd2146e05b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389384/normal_5f924b2630eae.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/d73f17b6-c478-4a7d-b437-c3a1d3839c1e/simufovobilutas.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc2f8256b97992eb5696e44/t/5fc49ffa7acac6192a54118b/1606721530987/52805227158.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfdd38a3bf4b14aba341ea/t/5fc0f14eeaf37e3b64bdfd29/1606480206739/kipuzunosirepowitovodad.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf590c173fb5383b997747/1606375692387/lejegabatubalufivujaxu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe2a5c6457125654040fb7/1606298235859/memakizizi.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd08f0ec0a1d2b4e57400c/1606224122984/samsung_65_inch_curved_tv_remote.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1a765405d5340f32ee4e2/t/5fc42227fa04221c71a1f18b/1606689320798/96201680439.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf502d3c02f22b9d03d82b/1606373421855/podirerodivijofij.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfeb102bbd74065800e14d/t/5fc0da1a145a8629dcd0e1fc/1606474266353/lorna_doone_shortbread_cookies_vegan.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe2a8aeaf37e3b64656699/1606298253056/heathers_the_musical_full_script_free_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_off0000d6bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6BD 5220 bytes
SHA-256: 1cea23da0ec243024c82fc63e49f1111084660ec8624a0d74aa46317f5976197
font_01_sfnt_off0000e88c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE88C 11796 bytes
SHA-256: e25a87783b40f8dd404163a50ebd84ecb19a599ca4ec15758e4b627b147110d9

Open this report in the interactive analyzer, or submit your own file for analysis.