Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecacef5f4b5bfc2e…

MALICIOUS

PDF

80.9 KB Created: 2021-03-22 04:53:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 63e47f2b1ee46af0cfd3a72b76167747 SHA-1: 2be120d89ae14c1a1e0e18f7a78ebf268f46cb25 SHA-256: ecacef5f4b5bfc2e2cf57ae351ecd773ed85ac0d063b7d138401a08a4dc9b5f7
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URI pointing to a suspicious domain, disguised as a 'Louis Vuitton sneaker size guide'. This lure is intended to trick the user into visiting the malicious URL, likely to download further malware or conduct phishing. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/123?utm_term=louis+vuitton+sneaker+size+guide
    • http://safetymirrors.xyz/logo_design_company_usawyzdh.pdf
    • http://poradoit1.site/mandated_vs_permissive_reporter_pan05jo.pdf
    • http://aduo5.online/midi_to_xlr_converterpehpj.pdf
    • http://disconto50.info/maze_runner_3_female_castdrn7x.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/sewamos/72104403048.pdf
    • https://s3.amazonaws.com/tezude/pioneer_vsx_1122_airplay.pdf
    • https://s3.amazonaws.com/jotizifime/irish_independent_crossword_answers.pdf
    • https://s3.amazonaws.com/viregujipowuru/68687715002.pdf
    • https://s3.amazonaws.com/pevuwarobuvowa/astm_a532_free.pdf
    • https://s3.amazonaws.com/fidefofudi/robot_coupe_r2_blade_cap.pdf
    • https://uploads.strikinglycdn.com/files/729d59da-b921-415a-9e96-57d42c74b354/james_clavell_shogun_book_review.pdf
    • https://s3.amazonaws.com/nuxulikiwab/95426262529.pdf
    • https://uploads.strikinglycdn.com/files/c9482401-a712-46e3-b0f8-39a80445c707/bemidukuxixel.pdf
    • https://uploads.strikinglycdn.com/files/d260a2c6-743f-493b-8bb5-97b381568542/what_is_curriculum_evaluation_essay.pdf
    • https://s3.amazonaws.com/kuboki/extremerate_ps4_dawn_remap_guide.pdf
    • https://uploads.strikinglycdn.com/files/0811f97e-b5f3-41c3-9582-1eb59b119819/kenmore_elite_smartheat_quiet_pak_9_specs.pdf
    • https://s3.amazonaws.com/farowug/juxavolimifala.pdf
    • https://s3.amazonaws.com/simujix/admiral_full_movie_free.pdf
    • https://s3.amazonaws.com/fadadedezeker/archero_mod_apk_1._2_2.pdf
    • https://s3.amazonaws.com/fivebo/balanced_body_reformers_for_sale.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f124.bin
f72d0dd0640ce7b67f192471d6e877ad31b1850ede76943920eb155749a7412a
pdf-font-stream PDF embedded font (sfnt) at offset 0xF124 4956 bytes
font_01_sfnt_off0001021f.bin
4b68004efcc2bac3146bcae6ff841c2188366ca2123e59bc784e8823bbdbd3ec
pdf-font-stream PDF embedded font (sfnt) at offset 0x1021F 11448 bytes
font_02_sfnt_off00012841.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x12841 4324 bytes