Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed34178cae10f5a1…

MALICIOUS

PDF

95.0 KB Created: 2021-03-14 07:44:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f7d6df482d16b188e02d7fb22d94fdc SHA-1: 18c9c297a9a1d1e52f7faade90bdbe7bc2d49521 SHA-256: ed34178cae10f5a159262efbaf3bf7d1242c00cb4ce3f7f941e7f2a3a72f694a
96 Risk Score

Malware Insights

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

The file was identified as malicious by a ML classifier and ClamAV, flagging it as a phishing trojan. It contains embedded URLs that lead to external sites, likely for credential harvesting or further malware delivery. The document body, though heavily obfuscated, suggests a lure related to 'emotional intelligence psychology', which is a common tactic for phishing campaigns.

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://kuzutuzo.ru/strik?utm_term=que+es+la+inteligencia+emocional+psicologia
    • https://static.s123-cdn-static.com/uploads/4368466/normal_5ff6d4051c0aa.pdf
    • https://cdn-cms.f-static.net/uploads/4403948/normal_6046bd6a04ffc.pdf
    • http://zuvilivupeke.iblogger.org/nuxibamoxo.pdf
    • https://cdn-cms.f-static.net/uploads/4459776/normal_600a6c115a26a.pdf
    • https://cdn-cms.f-static.net/uploads/4417645/normal_5fd8954097ba7.pdf
    • https://cdn-cms.f-static.net/uploads/4387808/normal_60353aa2b65f1.pdf
    • http://pepariravifaza.getenjoyment.net/club_car_carryall_1500_service_manual.pdf
    • http://carbags.site/9446173319941gyr.pdf
    • https://cdn-cms.f-static.net/uploads/4407810/normal_6022b39351d33.pdf
    • https://cdn-cms.f-static.net/uploads/4495531/normal_602c972218e52.pdf
    • http://nukels.xyz/jotosasomi819ur.pdf
    • http://sovuradema.medianewsonline.com/how_long_do_snow_blowers_last.pdf
    • http://reduslim-siteofficial.site/gatufukovujaxo0v5rf.pdf
    • http://sidagopuxi.22web.org/15878182531.pdf
    • https://cdn-cms.f-static.net/uploads/4379487/normal_5fe74d45f27af.pdf
    • http://mavigawika.scienceontheweb.net/bidalokofupuzudizelul.pdf
    • http://mon-compte-cmb.best/what_is_philosophy_logical_positivismpfcf3.pdf
    • https://cdn-cms.f-static.net/uploads/4408721/normal_600b9263276d5.pdf
    • https://cdn-cms.f-static.net/uploads/4365620/normal_602fc6bcae484.pdf
    • https://cdn-cms.f-static.net/uploads/4476758/normal_60485c6904910.pdf
    • http://whysmall.space/acquired_traits_vs_inherited_traitskjm3z.pdf
    • https://static.s123-cdn-static.com/uploads/4476146/normal_60010c9b81ee7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000131fb.bin
debc7590ac940d9d76a96f0d102c6c49e2e0d2c58b4292fb9ec340e089d4e781
pdf-font-stream PDF embedded font (sfnt) at offset 0x131FB 5216 bytes
font_01_sfnt_off000143b1.bin
17811ccfa68427b91129d00d9a025f018087b6ace0fd699450124f7b4baa1613
pdf-font-stream PDF embedded font (sfnt) at offset 0x143B1 12504 bytes