Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2d6032d494210e8…

MALICIOUS

PDF

211.7 KB Created: 2021-05-20 05:53:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 2d3ba37e21a72d6f33c66912ddb12efd SHA-1: ec18d31b12f3b53638be2681a123845e9f34bd3f SHA-256: d2d6032d494210e8c304d54627ca45cab5b4f078c156261db2ac88327662ac0d
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1534 Steal Session Token T1059.007 JavaScript

The sample was flagged by ML classifiers and ClamAV as malicious, with a critical heuristic indicating it's a lure for MFA or one-time-code harvesting. The embedded URL points to a suspicious domain, likely serving a phishing page designed to steal credentials or session tokens. No scripts were extracted, but the PDF structure and heuristics strongly suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9945

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://baarspo.ru/strik?utm_term=why+did+daniel+lansing+leave+when+calls+the+heart PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4413465/normal_6069543664048.pdfIn PDF document text
    • https://lexezidelaxo.weebly.com/uploads/1/3/4/6/134605078/3887051.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474992/normal_605f614e73174.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379049/normal_604d5b9394ac2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471475/normal_5fdf8fcba3df5.pdfIn PDF document text
    • https://sirewuri.weebly.com/uploads/1/3/5/2/135298631/188b72.pdfIn PDF document text
    • https://kobuzefejara.weebly.com/uploads/1/3/1/4/131437799/00f8df075b9d.pdfIn PDF document text
    • https://jegivobepumo.weebly.com/uploads/1/3/4/4/134444156/sepulomimawoxod.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385197/normal_606aa39eb7185.pdfIn PDF document text
    • https://sasanufodokedu.weebly.com/uploads/1/3/0/9/130969760/5e88cb.pdfIn PDF document text
    • https://semizafug.weebly.com/uploads/1/3/1/8/131871859/2613418.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456687/normal_5ffbf151b4b8e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413008/normal_601683f80d398.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420597/normal_600e07875a046.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407100/normal_604cba11da6d0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491669/normal_5fd0da5da6716.pdfIn PDF document text
    • https://pujowuvorokom.weebly.com/uploads/1/3/5/3/135347933/tovirizusarebag.pdfIn PDF document text
    • https://pawomasa.weebly.com/uploads/1/3/4/7/134737305/piferegug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446496/normal_600e00d638918.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460048/normal_60031c2d780e0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/novifamigot/how_to_watch_the_hobbit_trilogy.pdfIn PDF document text
    • https://s3.amazonaws.com/panalipolifod/3d_text_effect_psd_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/megujobemegor/the_coldest_place_in_the_us.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_off0003061f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3061F 5468 bytes
SHA-256: b8e9bb695376dd298c44d35967eda52744ded9ba2831f378cdb08fc17b15f5be
font_01_sfnt_off000318d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x318D8 12204 bytes
SHA-256: 4b427053771e34bc85f7d22302a3a2eb425d41ed4ff65af8b275b234e8728385

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