Malicious PDF — malware analysis report

Static analysis result for SHA-256 06225dd4abdf0d0a…

MALICIOUS

PDF

73.9 KB Created: 2020-11-23 14:23:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0814105b2c77e2583a96a23bcaf7ae06 SHA-1: 7c9216d94a4d5ee101f87e4af56ada08e5c72235 SHA-256: 06225dd4abdf0d0a54eee241cc7fff140d612ff4b1cb529acef4cbb95fd88130
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a specific detection name indicating it's a phishing trojan. An external URI pointing to 'trafficel.ru' was extracted, suggesting a potential phishing or command-and-control communication channel. The PDF structure and embedded content, though heavily obfuscated, are consistent with malicious documents designed to exploit vulnerabilities or trick users into visiting malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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://trafficel.ru/strik?utm_term=on+its+own PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4388282/normal_5faad2088f182.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421201/normal_5fb3da5747bef.pdfIn PDF document text
    • https://gafalevomunu.weebly.com/uploads/1/3/4/2/134235362/banefusilifol-vuwiralitawuxi-junowaleno.pdfIn PDF document text
    • https://xexovelez.weebly.com/uploads/1/3/0/8/130813416/7194767.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470405/normal_5fbaf8f270181.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446273/normal_5fae3f2314cb1.pdfIn PDF document text
    • https://pawikewam.weebly.com/uploads/1/3/4/4/134445239/bifavodix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367301/normal_5fb4476e72347.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/woxojuxafopuv/pokemon_reborn_starter_locations.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52c6c2ce-77d4-4691-8e5b-ef11151a09e5/lixonurovolurarig.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e756565d-7e3d-41c3-9508-ef7a5c516f19/sabukebepos.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fe339819-c5d2-47da-bc5f-65aadcef6703/bofosefanufajelajol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b15df1c-6f4a-4b1d-bf8c-f9c29799a15b/80729594197.pdfIn PDF document text
    • https://s3.amazonaws.com/fonazuzixagizir/pojega.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c554.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC554 2900 bytes
SHA-256: 847c622b7aea4a603eea11aa304a86ca719272573df5c51ced64a8796f9cd36d
font_01_sfnt_off0000cfa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFA2 4460 bytes
SHA-256: a3903c1f629aee0ef63398a1b67687227ec7fb400dce9df88d5c875f4bc48272
font_02_sfnt_off0000def5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF5 11572 bytes
SHA-256: 98c8b6323fdddcb8df4c013806caf5a83dc36c370141a6f2bb492d6b76fcbd8b
font_03_sfnt_off000105c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105C3 16068 bytes
SHA-256: 2e6efdb6ec6b06881b73571a6dc11127da1b4fc0f11d045bd7c2e12cbfc92ea6

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