Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bcfc7b03e993bff…

MALICIOUS

PDF

83.8 KB Created: 2021-01-19 22:09:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 46568b6dbcba7edaee70aa668a28c3bd SHA-1: e0c48956a2463d83f10e18f2499a61a4a37b1bad SHA-256: 5bcfc7b03e993bff1ae848fb79faa0366c105c038585678bb29eecb942801f3f
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'traffking.ru', which is likely a phishing or malware distribution site. The document body, though truncated, suggests a lure related to a snake comparison, which is a common tactic for phishing or social engineering.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffking.ru/123?utm_term=coral+snake+vs+king+cobra PDF link annotation
    • https://site-1173152.mozfiles.com/files/1173152/land_rover_off_road_experience_eastnor_castle.pdfIn PDF document text
    • https://cdn.sqhk.co/sileluzorupo/ijgjm7L/30715008138.pdfIn PDF document text
    • https://cdn.sqhk.co/letijefa/emld4ou/31840540183.pdfIn PDF document text
    • http://tunizunifegitof.66ghz.com/tonivevomu.pdfIn PDF document text
    • https://cdn.sqhk.co/wujukipako/iidifsq/smashy_bricks_unlock.pdfIn PDF document text
    • https://cdn.sqhk.co/jomenuluz/7fsNxZH/hammer_jump_mod_apk_1._5._1.pdfIn PDF document text
    • https://site-1177743.mozfiles.com/files/1177743/93136980904.pdfIn PDF document text
    • https://site-1192097.mozfiles.com/files/1192097/zobadijikisosuzil.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/free_music_s_sites_for_iphone.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/mokurirurafepe.pdfIn PDF document text
    • https://s3.amazonaws.com/fewunadupop/37101866038.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/namijegomemudipo.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/picture_oxford_dictionary_english-_vietnam.pdfIn PDF document text
    • https://s3.amazonaws.com/forupokisip/83704144715.pdfIn PDF document text
    • https://s3.amazonaws.com/wiremeresegikon/online_radio_box_pro_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/marantz_mm7025_specs.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/paypal_here_app_apk.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010880.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10880 5136 bytes
SHA-256: 713a56d0ce8e9167be7bcb6272d4c405bc290409628fb60f3cca6fff3728f070
font_01_sfnt_off00011a12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A12 12212 bytes
SHA-256: 22acdd8d0e58952a822463b27d51c744cfb3678bf7871dde607bdea5b7b9f45c

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