Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ec08fbc6e3c0adf…

MALICIOUS

PDF

81.7 KB Created: 2021-02-25 21:16:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: d09b715f9eeab42a34087d3a0b29b902 SHA-1: 2a7bbd01cd5f705d92ee2bc7848141b9fa8aceab SHA-256: 9ec08fbc6e3c0adf8fcad06dcae6357472942a86cf3f65a271621c6af76dd957
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing attempt. The ML classifier and ClamAV detection strongly support its malicious nature. The embedded URLs suggest the document is designed to redirect users to potentially malicious content, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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://yafferge.ru/award?keyword=the+three+estates+of+french+society+worksheet In PDF document text
    • https://nomukemometikuf.weebly.com/uploads/1/3/1/4/131483138/4232840.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368951/normal_60001f413f567.pdfIn PDF document text
    • http://komaxinatobofe.medianewsonline.com/hamilton_beach_coffee_maker_k_cup_compatible.pdfIn PDF document text
    • https://cdn.sqhk.co/niririga/fKgeU89/naxewesizavavofolebifasi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445114/normal_5ff612ca89f19.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4422640/normal_5ff54312815ec.pdfIn PDF document text
    • https://pulezigo.weebly.com/uploads/1/3/4/6/134600697/ferones.pdfIn PDF document text
    • https://rabivavas.weebly.com/uploads/1/3/0/9/130969809/9858964.pdfIn PDF document text
    • https://cdn.sqhk.co/vafodagusun/hXflOgd/xakafexukubevafilus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470385/normal_601dda33c5bc4.pdfIn PDF document text
    • https://cdn.sqhk.co/nolovojawek/iiRgigj/vomitofozoxorav.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472216/normal_60013bad2c54a.pdfIn PDF document text
    • https://zugufirit.weebly.com/uploads/1/3/1/1/131163535/mekuzasokufar.pdfIn PDF document text
    • https://cdn.sqhk.co/nuponoviva/FhbAKOJ/zewikunusemer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447497/normal_5fcbf3d6da4e3.pdfIn PDF document text
    • http://kejoxemubogese.mywebcommunity.org/letobanonuxikojawatow.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://zuxekesimulir.epizy.com/bagavoba.pdfIn PDF document text
    • http://liroporuki.myartsonline.com/wireless_n_repeater_wps_connect.pdfIn PDF document text
    • http://tiwatimab.atwebpages.com/27467692239.pdfIn PDF document text
    • http://kipixuge.epizy.com/33061923474.pdfIn PDF document text
    • http://vizumun.rf.gd/alkaline_earth_metals_properties.pdfIn PDF document text
    • http://xutulatovemi.epizy.com/22814161992.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f6d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6D0 4932 bytes
SHA-256: 252995720143e7f7b033f99ee48d8381571a966fe5e1f23c00a00d7f2e4dd656
font_01_sfnt_off000107a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107A2 10180 bytes
SHA-256: 709d30630e284b312d717a4ae34c633d407bdec6989d05e2a57cb59e24697388
font_02_sfnt_off00012a8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A8C 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176