Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c6b2106e8048827…

MALICIOUS

PDF

75.3 KB Created: 2021-05-15 17:21:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f18ddb2673990472d82e0001059d705 SHA-1: e8a295dd4614cb75b49fb9c7e77aa3947c44a40c SHA-256: 9c6b2106e8048827fd68eeb50ce5bc37c4a32250252fb6b1fd2c1d82dc586b98
96 Risk Score

Malware Insights

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

The PDF file contains embedded URLs that lead to suspicious domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body, though partially corrupted, hints at a lure related to weight gain exercises, which is a common tactic for phishing campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jumiwimov.ru/strik?utm_term=how+to+do+weight+gain+exercise+at+home
    • https://static.s123-cdn-static.com/uploads/4387566/normal_5ff55292a7d7f.pdf
    • http://kutatit.getenjoyment.net/36197236343.pdf
    • https://static.s123-cdn-static.com/uploads/4377928/normal_5ff903585bf8d.pdf
    • https://cdn-cms.f-static.net/uploads/4369796/normal_606e0777ae83e.pdf
    • https://cdn.sqhk.co/wuvexudid/b5iijd1/77781186560.pdf
    • https://cdn.sqhk.co/pobijejok/gIiegfe/strategic_planning_process_in_healthcare.pdf
    • https://cdn.sqhk.co/puvubuzu/tk6giha/bojupere.pdf
    • https://cdn-cms.f-static.net/uploads/4462345/normal_600da56405236.pdf
    • http://toolsbestpricemicrometer.site/zojasikoxepipfr54.pdf
    • https://static.s123-cdn-static.com/uploads/4418746/normal_5fe124bb197f9.pdf
    • http://optarfes.com/fifty_shades_of_darker_full_movie_free_download_mp4_filmywapz54l5.pdf
    • https://cdn.sqhk.co/nubevitawil/iahanf9/37902020722.pdf
    • https://cdn.sqhk.co/gafisasiwu/nfa0hjh/eric_church_new_song_jenny.pdf
    • http://24goodstore.site/beyblade_burst_turbo_episodes_freeqvogg.pdf
    • https://static.s123-cdn-static.com/uploads/4455881/normal_5fceaca852fa2.pdf
    • https://cdn-cms.f-static.net/uploads/4381287/normal_604625c6e8fd1.pdf
    • http://triple-doska4.club/yqjh3.pdf
    • http://instapriz.site/lenovo_ideapad_3_review_ryzen_5_3500u7in79.pdf
    • https://cdn-cms.f-static.net/uploads/4452595/normal_603aa3c59a224.pdf
    • http://kojazunupetip.mygamesonline.org/lozetunajolotatajulibi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/xuzed/troy_bilt_lawn_mower_reviews_self_propelled.pdf
    • https://s3.amazonaws.com/nolarifaforuxop/tupepolibep.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_off0000e80d.bin
c773e4df04e4105e98fd072441037d3198047b6b91c815a4023cc490f1b46822
pdf-font-stream PDF embedded font (sfnt) at offset 0xE80D 5444 bytes
font_01_sfnt_off0000fa7a.bin
4a95b582d7ce9befcc3a59625cb1ddfb88fc0f8c9d5e9b88fd480a1afb74ef49
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA7A 11668 bytes