Malicious PDF — malware analysis report

Static analysis result for SHA-256 d047971747042d44…

MALICIOUS

PDF

68.0 KB Created: 2021-03-24 07:57:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: feb870e53b0c3847de1ffc3183b69a89 SHA-1: d0fab0661256532e85324d3e039738440e8d5c14 SHA-256: d047971747042d445407fe3b02fa063b38b85fe527ac39bac3c2114f9526ce88
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, appears to be a lure related to a product manual.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/wix?keyword=cuisinart+smartpower+blender+manual
    • http://natlab.ru/everlast_interval_timer_manualb5kiy.pdf
    • https://juposuwidamad.weebly.com/uploads/1/3/1/4/131406248/fc0658ad590839.pdf
    • https://jewigilimeb.weebly.com/uploads/1/3/1/4/131408849/c7d2ee8df5b6.pdf
    • https://cdn.sqhk.co/navimoxa/ajgddO4/56335662492.pdf
    • https://cdn.sqhk.co/woberimi/SZgetZk/gekaromumalob.pdf
    • http://zyzycheat8.xyz/is_there_a_sequel_to_miss_peregrines_movie4xjrb.pdf
    • http://chambreop.xyz/54213084939t7vb2.pdf
    • https://gofetudorupu.weebly.com/uploads/1/3/1/4/131408581/2d0bda2.pdf
    • https://cdn.sqhk.co/goluxewimabu/zhh8ghZ/temple_run_play_online_free_in_jio_phone.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://da18e6a8-d720-42de-a88c-3f13daad7efb.filesusr.com/ugd/08fe48_8640b588cb274d65bcfa9a3c065d4ce8.pdf?index=true
    • https://cad90261-f038-4e8a-b384-2e0e37e6cb8c.filesusr.com/ugd/4c4e45_fd755ef42e3a4817a3a287a63efafd81.pdf?index=true
    • https://s3.amazonaws.com/fupanabivote/experian_will_not_unfreeze_my_credit_report.pdf
    • https://e25b5f36-ee09-4010-8803-019b2853a23b.filesusr.com/ugd/c34eac_89d48215ff264ac9ab64636eef51876b.pdf?index=true
    • https://s3.amazonaws.com/toguvaju/sogunidejuzamelilagimawi.pdf
    • https://s3.amazonaws.com/luropiw/ata_taekwondo_red_belt_form.pdf
    • https://c03439ef-6557-4199-865e-586791a52b6c.filesusr.com/ugd/6bb4a2_2a39b306058c442490df84b61a597baa.pdf?index=true
    • https://s3.amazonaws.com/pozokimepe/bhagavad_gita_in_tamil_free.pdf
    • https://df6a9abb-74f3-47e1-b359-fe6d1019da36.filesusr.com/ugd/7921d2_1b91e4b826c54b5fa91f275f4e9b4022.pdf?index=true
    • https://s3.amazonaws.com/zibenoroduzuw/periodic_table_worksheet_page_36.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_off0000ccc5.bin
6be7c0554a7232bb8958d5f7786cd4ee2628c6a82087a17efc2759770fd1d154
pdf-font-stream PDF embedded font (sfnt) at offset 0xCCC5 5244 bytes
font_01_sfnt_off0000de81.bin
be71f81ae6c06cee062457842cd834e3fcbf4684d8d0f47da44855aeebf2089d
pdf-font-stream PDF embedded font (sfnt) at offset 0xDE81 10672 bytes