Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8c7d93ccdd9c821…

MALICIOUS

PDF

74.7 KB Created: 2021-06-06 15:06:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3054f97726a12533ebc49686e1319889 SHA-1: b373315c67f1a629468e28cd93e66111404e3976 SHA-256: d8c7d93ccdd9c82123b70ebb588c9458de161c3bae6e0056a981129cb892cee6
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a phishing page disguised as information about Avon commission. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. No scripts were extracted, but the presence of a malicious URL is a primary indicator of compromise.

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://garglob.ru/pbw?utm_term=how+does+avon+commission+work+in+south+africa
    • https://cdn-cms.f-static.net/uploads/4403820/normal_605f96d9ce0a0.pdf
    • https://cdn-cms.f-static.net/uploads/4485822/normal_606e95ab62a26.pdf
    • https://bovaxomasomi.weebly.com/uploads/1/3/1/4/131437143/9f7b5a.pdf
    • https://mubelumovetofap.weebly.com/uploads/1/3/1/8/131856402/mopizuzaxo_sutolem_fujebewop_dujasamusuz.pdf
    • https://static.s123-cdn-static.com/uploads/4483836/normal_60068f89817ce.pdf
    • https://cdn-cms.f-static.net/uploads/4445555/normal_603eb53c38fdc.pdf
    • https://static.s123-cdn-static.com/uploads/4415962/normal_5ff9825d31b4d.pdf
    • https://cdn-cms.f-static.net/uploads/4444378/normal_60312b3d6bc4c.pdf
    • https://static.s123-cdn-static.com/uploads/4368478/normal_5fe33c32904bb.pdf
    • https://cdn-cms.f-static.net/uploads/4494149/normal_6030308a3cf78.pdf
    • https://gatilesajegume.weebly.com/uploads/1/3/1/0/131070678/7847622.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tozuxexap.pbworks.com/f/physical_pharmaceutics_book_download.pdf
    • http://morabef.pbworks.com/f/98154004394.pdf
    • https://uploads.strikinglycdn.com/files/24fe24e4-2d8a-4e2a-8e9e-caf244912390/text_structures_definition.pdf
    • http://feselikebapu.pbworks.com/f/69685228441.pdf
    • http://memofemovo.pbworks.com/w/file/fetch/144465852/skf_bearing_catalogue_app.pdf
    • https://uploads.strikinglycdn.com/files/e7ae149d-e8a6-4772-9610-c4375de17bdf/98534499668.pdf
    • http://mokakiw.pbworks.com/f/an_introduction_to_film_genres_lester_friedman.pdf
    • http://lugozamuxika.pbworks.com/w/file/fetch/144411969/how_long_is_navy_dive_school.pdf
    • http://tukufidanega.pbworks.com/f/vojarodavo.pdf
    • https://uploads.strikinglycdn.com/files/8865247d-23cd-48c8-9a0d-3447187b053f/hasta_bakm_plan_rnekleri.pdf
    • http://nuxawakaxaz.pbworks.com/f/vogosazelexovofitabefexu.pdf
    • 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_off0000e5d7.bin
ce33abc79b1aefa3d6c9af3b95888d53c5f51fffa6a1b0ce392fa361dd4e352e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5D7 5404 bytes
font_01_sfnt_off0000f825.bin
4fc94f92a9acfd096497b9d3e723acbf874cd54864e3afc0d2a5e814d05b8024		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF825 10440 bytes

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