Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c4f2cbc1c0f7c35…

MALICIOUS

PDF

76.7 KB Created: 2021-03-11 19:26:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d3aa836ab48f33bda2adf0ee8aa7a18 SHA-1: 938cf876c8d76647b331ddff219d83f172b51a53 SHA-256: 8c4f2cbc1c0f7c3505b9c0baca97a4a92bc425777ec3d598c5db92e0f376f37b
96 Risk Score

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 high risk score. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, contains keywords related to 'Enron chart stock prices', suggesting a lure for phishing or malware delivery. No scripts were extracted, but the presence of external URIs indicates a potential for downloading further payloads.

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://seumenha.ru/wix?keyword=enron+chart+stock+prices
    • https://cdn.sqhk.co/lilaxikixo/bRhjihK/juxat.pdf
    • https://cdn.sqhk.co/fulaxanew/ifCccjg/fikaxozapufunokekixilupud.pdf
    • http://c-advance.space/aritmetik_dizi_sorular9j3iu.pdf
    • https://cdn.sqhk.co/lofakekaf/aV8VCgd/snake_colours_in_dreams.pdf
    • http://totalcreditreport.info/wodutuxuvuvemizvmiu.pdf
    • https://cdn.sqhk.co/woferomot/mhfihzx/hip_abduction_exercises.pdf
    • http://zuxegesa.iblogger.org/phet_circuit_simulation_lab_answers.pdf
    • http://dobilarujokux.sportsontheweb.net/the_book_of_secrets_loreena_mckennitt_youtube.pdf
    • https://cdn.sqhk.co/jebozibiru/dmnjea1/tempest_pirate_action_rpg_mod_apk_free_download.pdf
    • http://paktum.pro/nosedazaja95vsq.pdf
    • http://pankreatitum.ru/the_measure_of_a_man_quotesq03xx.pdf
    • https://cdn.sqhk.co/wezupobuwab/gPyhDjg/peacemaker_full_movie_online.pdf
    • http://zereteleriw.getenjoyment.net/34067113308.pdf
    • https://cdn.sqhk.co/rurufimibiwe/gjjhiaP/cara_dune_black_series_review.pdf
    • https://cdn.sqhk.co/gegenosuzun/NIve8gf/battle_of_moscow_napoleonic_wars.pdf
    • http://jolixasij.sportsontheweb.net/64523444155.pdf
    • http://nujagexurej.medianewsonline.com/sansa_clip_zip_replace_battery.pdf
    • http://moymagazin.xyz/80438155168qtg6g.pdf
    • http://reduslim-ordina.site/ecological_succession_worksheet_answer_key_pondotaha.pdf
    • http://trokot-new.online/86734566236ipyrq.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://vetodegadema.rf.gd/baixar_jogos_de_ps1_para_android.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_off0000efe9.bin
7e13b34917fbae71e11d5fff3fcadafcfa4237524c6f48760cffc36e1ce832a4
pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE9 5008 bytes
font_01_sfnt_off000100f0.bin
87b1feefee4231889c4892be61747c703e9d7912e6ab480fcfd9f88bc4ff1410
pdf-font-stream PDF embedded font (sfnt) at offset 0x100F0 10780 bytes