Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1fa89c7208a4a94…

MALICIOUS

PDF

82.6 KB Created: 2021-03-06 13:56:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 88a6212507844619cace005215d3f26d SHA-1: 389ac0db01d1a9c50b1e11115acdee8598380754 SHA-256: c1fa89c7208a4a94a98db12adc4cd6bcdf660c89c95b1fcbe7300df2440bd054
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://baarspo.ru/123?utm_term=budgeting+for+beginners+app PDF link annotation
    • https://cdn.sqhk.co/zogameva/2ia2gig/hit_or_miss_mode_roblox_id.pdfIn PDF document text
    • https://cdn.sqhk.co/vituxezij/H2hegjO/xafobuvofusib.pdfIn PDF document text
    • https://cdn.sqhk.co/nakizenonetu/ijxhchj/32157862109.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzinirumawe/geCA8hc/3595849658.pdfIn PDF document text
    • http://xuxugagutosi.iblogger.org/what_order_do_the_robert_langdon_books_go_in.pdfIn PDF document text
    • https://cdn.sqhk.co/tevimuwijile/gglKzib/71196255177.pdfIn PDF document text
    • https://cdn.sqhk.co/loganidob/hbbS1ic/68427439935.pdfIn PDF document text
    • https://cdn.sqhk.co/sigidezok/jcXiajd/reverso_classic_small_quartz.pdfIn PDF document text
    • http://wedudixunuluwef.iblogger.org/how_to_say_aliyah_in_hebrew.pdfIn PDF document text
    • https://cdn.sqhk.co/sekigizakeku/ijjht9a/rescue_wings_mod_apk_revdl.pdfIn PDF document text
    • https://cdn.sqhk.co/lanuniwa/6Ipnbje/mastermind_group_cost.pdfIn PDF document text
    • https://cdn.sqhk.co/rexukewanej/fAiiijh/spin-_orbital-_angular-_momentum_coupled_bose_condensates.pdfIn PDF document text
    • https://cdn.sqhk.co/jeporikate/zhcdthc/63786221657.pdfIn PDF document text
    • https://cdn.sqhk.co/jezaziritav/JTJNiee/sazesulidudokogebin.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jowelijarav.rf.gd/31174099915.pdfIn PDF document text
    • http://fexomuwitoxe.rf.gd/kimijokidomejid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fc8eee2-0c20-499f-900c-9170edb97d82/harrisons_internal_medicine_20th_edition_table_of_contents.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93a6e8ed-b1bc-4bb3-a0ef-1e09899e973c/pogipejinezi.pdfIn PDF document text
    • http://volajigatume.epizy.com/how_to_scroll_lock_excel_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/acf12b69-f20e-46ff-a4aa-38434c59396d/diary_of_a_wimpy_kid_books_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81b55d39-5762-4d9f-a069-d04fe7f28ffb/how_to_learn_dental_terminology.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa9b543c-ca07-44d4-bc25-683cbcc22aa5/lalis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/75e9b2ae-1d31-4cc6-928e-02c132d5dcf5/84106198356.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2b30e26-9422-46e5-b9a5-544817805fcb/asimov_foundation_trilogy_summary.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_off00010663.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10663 5368 bytes
SHA-256: c87e0070bb79222d96b2bf634e9dea860a2fab07337d5e020ebd1b04425af8ee
font_01_sfnt_off000118b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x118B7 10660 bytes
SHA-256: da59913f781ae9c9634556adce8bcf67062763cfec8bb8138a005e8bca9e038f

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