Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f0fe3abc807ba5d…

MALICIOUS

PDF

78.0 KB Created: 2021-04-08 02:45:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe62329a2fdab2bacc08cfff350324ff SHA-1: 44821596dd6e89247fcbcbc5366efbbbc8bccb71 SHA-256: 0f0fe3abc807ba5db9cfdb58c084c3e08612c9605d5a35dff162b35b1d2c9d48
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, suggesting it's designed to redirect users to malicious content. The document body, though heavily obfuscated, contains metadata related to its creation, and the presence of external URIs indicates an attempt to lead the user to a compromised or 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://dafemum.ru/strik?utm_term=lotus+carlton+for+sale+ebay
    • http://getyourcredit.info/2012_end_of_the_world_movie_download_in_hindi24rjv.pdf
    • http://mowefopovog.mywebcommunity.org/life_of_galileo_play_sparknotes.pdf
    • http://sivolejujivozul.scienceontheweb.net/csec_chemistry_past_papers.pdf
    • http://good-production17.site/46827904913kakku.pdf
    • https://cdn.sqhk.co/ferorigife/gchhKUj/the_last_survivors_series_bobby_adair.pdf
    • https://cdn.sqhk.co/kewukapugino/djd0MkB/wezun.pdf
    • http://tivuximuliku.mygamesonline.org/graphic_design_agency_company_profile.pdf
    • http://loneresel.mygamesonline.org/what_is_statistical_infrequency_in_psychology.pdf
    • https://cdn.sqhk.co/vuvapolaxaj/tMLoojb/29314212074.pdf
    • https://cdn.sqhk.co/puxezuxivas/hh1sqUE/one_and_only_you_song_meaning.pdf
    • http://megalit-korolev.ru/468817199184sa2y.pdf
    • https://cdn.sqhk.co/zenegiwowi/DFlgfjg/real_counter_terrorist_shooting_strike_fps_game.pdf
    • http://sochi2026.com/laxatexipikiwumilabijepu36imu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jarirotexab/55798129062.pdf
    • https://s3.amazonaws.com/gomaxod/84799741115.pdf
    • https://s3.amazonaws.com/jopomodilamego/doseditojiw.pdf
    • http://womawujun.atwebpages.com/english_slang_words_with_meanings.pdf
    • https://uploads.strikinglycdn.com/files/0829fbb7-ffc0-4206-a143-b3507b6a32c7/46085978253.pdf
    • https://uploads.strikinglycdn.com/files/b81336a9-2c34-488a-aa57-69905273644b/tone_it_up_workouts.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_off0000f4a6.bin
839fb360af0efe3afc77a967bccca1e3f2dfa219da3d7b04477c8ed15e5e5b12
pdf-font-stream PDF embedded font (sfnt) at offset 0xF4A6 5060 bytes
font_01_sfnt_off000105f7.bin
607a611319da1fa0f32628d256f3f3b94530832032ea693bceab2362826ffabd
pdf-font-stream PDF embedded font (sfnt) at offset 0x105F7 10764 bytes