Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2a59fc54c66d31f…

MALICIOUS

PDF

75.2 KB Created: 2021-03-02 23:02:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 5fd3c1c7c94555fc4cab1c2457d2f200 SHA-1: 1086cff07e74c24f696bfec89810dba527221a84 SHA-256: d2a59fc54c66d31f45d8e557a56d6cbddb773b01fbcd591b4c9af61ea57c3859
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that leads to a suspicious domain, likely a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest a phishing attempt to redirect users to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://fokemale.ru/123?utm_term=mypin+ta4-snr+pid+temperature+controller PDF link annotation
    • 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
    • https://s3.amazonaws.com/tawosutosuxi/mi424wr_change_password.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/avengers_assemble_episodes_tamil.pdfIn PDF document text
    • https://s3.amazonaws.com/mogedozara/bhojpuri_video_new_song_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/44565966877.pdfIn PDF document text
    • http://zegokufa.epizy.com/duxutaxisisaregozomemim.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/xiboxogofotoruxa.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/cantharis_vesicatoria.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/auxiliary_verb_list_with_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/fovezewi/andhra_pradesh_government_schemes_telugu.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/13063196398.pdfIn PDF document text
    • https://s3.amazonaws.com/zikeko/land_guideline_value_in_kerala.pdfIn PDF document text
    • https://s3.amazonaws.com/xirixepo/60763427924.pdfIn PDF document text
    • https://s3.amazonaws.com/tawosutosuxi/genetically_modified_organisms_advantages_and_disadvantages.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/29701147094.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/vidmate_hd_2017.pdfIn PDF document text
    • https://s3.amazonaws.com/votubukaxogilix/56784181167.pdfIn PDF document text
    • http://kekokid.epizy.com/56210808071.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_off0000da58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA58 5328 bytes
SHA-256: e5e3d02c6047771a73ea505747fcba610de7dc6e376bed58a86896bef146ab6b
font_01_sfnt_off0000ec63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC63 10904 bytes
SHA-256: a0185a3dc6d49ec9af0372782b0732487a08c0079f3f62a137110e6419775f91
font_02_sfnt_off0001114e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1114E 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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