Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed4b54aaca018b97…

MALICIOUS

PDF

85.1 KB Created: 2021-03-25 01:26:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: dc88b13868fd4f319f3703d69da135f9 SHA-1: 294ad54a017f233d0a05293ad1622d381fe77142 SHA-256: ed4b54aaca018b97ab4e09a78c99dbf9f695c1d9d890ddbe5cfe68f3ceef7a1b
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading a malicious payload. The document body, though heavily obfuscated, suggests a lure related to a PDF download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://golowaki.ru/award?keyword=space+odyssey+2020+pdf
    • http://xagakojitogiva.getenjoyment.net/the_vampire_diaries_season_8_episode_13.pdf
    • http://vijokezomamem.iblogger.org/guwuporovalasezexifu.pdf
    • https://cdn.sqhk.co/sawowudin/pjbjbie/my_home_design_modern_city_game_download.pdf
    • http://sevezor.scienceontheweb.net/how_to_install_z_wave_smart_switch.pdf
    • https://cdn.sqhk.co/ruwonumatag/e6jiSja/pupim.pdf
    • https://cdn.sqhk.co/miropefaneka/hhheDjh/63869943512.pdf
    • https://cdn.sqhk.co/gunonutib/haujhid/74496931393.pdf
    • https://cdn.sqhk.co/wexovezojab/jfihLXA/dog_cat_bird_hospital.pdf
    • https://cdn.sqhk.co/xanapaje/ynicwhd/45198579970.pdf
    • http://tafugegajotu.mygamesonline.org/39580813315.pdf
    • http://pedagodogiko.getenjoyment.net/03_saturn_vue_transmission_fluid_check.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/viwoxuz/jozajalopomidi.pdf
    • https://s3.amazonaws.com/woneketelak/19722431146.pdf
    • http://jomopizemiz.onlinewebshop.net/kapupona.pdf
    • https://s3.amazonaws.com/musokejixami/41895137917.pdf
    • https://s3.amazonaws.com/kefiperizonofu/xenugafoxu.pdf
    • https://s3.amazonaws.com/nalifij/biw_fixture_design.pdf
    • https://s3.amazonaws.com/jaloto/kalpana_songs_kannada_free.pdf
    • http://pesafitibum.epizy.com/ioi_properties_group_berhad_annual_report_2017.pdf
    • https://s3.amazonaws.com/regufojalojaza/kathi_tamil_movie_free_tamilrockers.pdf
    • https://s3.amazonaws.com/mipizaju/percent_composition_of_c6h6.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebab.bin
c1f2a60eaf0cec4f47df2fb42977b3321cc39788b5cfdb4f76006de34e0fd343		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEBAB 5056 bytes
font_01_sfnt_off0000fcd6.bin
f4e2506f0664ca89229b21b5f280b269a0a3817bfb580e53e04ac02d817e1bc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD6 10612 bytes
font_02_sfnt_off00012149.bin
a1348e1d1ccd5ef949220de3676ff85bb4ddbab9867fbcd4ef9f54297cef0142		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12149 16632 bytes
font_03_sfnt_off0001385a.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1385A 4324 bytes

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