Malicious PDF — malware analysis report

Static analysis result for SHA-256 8abd97694b42e564…

MALICIOUS

PDF

72.3 KB Created: 2021-05-24 23:27:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: fba60d86e7247dd1b6a9f9058f0f35f2 SHA-1: 29edb71ff40976b5b111f8eb555c805a5df7e6b6 SHA-256: 8abd97694b42e5641a7436a71548253cb4efbc30f032de71867102072512716c
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://resalured.ru/strik?utm_term=biografia+da+pastora+yesenia+then+predicas+completas PDF link annotation
    • https://susunagetasapok.weebly.com/uploads/1/3/4/4/134470533/kogezavepesupum-sivuwisefazav.pdfIn PDF document text
    • https://sidomepavoresob.weebly.com/uploads/1/3/5/3/135322675/6dd122ea5ddc3.pdfIn PDF document text
    • https://podesasi.weebly.com/uploads/1/3/1/4/131437149/8101211.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461249/normal_6066bc7f2b33b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391037/normal_5fe59c4ad9ed4.pdfIn PDF document text
    • https://gojatoxemoniro.weebly.com/uploads/1/3/4/8/134894745/62101.pdfIn PDF document text
    • https://zodemabu.weebly.com/uploads/1/3/4/8/134896511/benib_wemek.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421209/normal_5fffcb0595209.pdfIn PDF document text
    • https://radamokugek.weebly.com/uploads/1/3/2/6/132696621/196604.pdfIn PDF document text
    • https://tazabavirivagi.weebly.com/uploads/1/3/0/8/130814173/towetenifub.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423443/normal_603bd52c955f2.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/gebukil/xilujubawemis.pdfIn PDF document text
    • https://s3.amazonaws.com/xeponodij/gavotte_piano_accompaniment_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/navy_prt_cycling_standards.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/22344523268.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/windows_7_activation_key_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/ge_wall_timers.pdfIn PDF document text
    • https://s3.amazonaws.com/baxunaf/idling_to_rule_the_gods_beginner_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/mahalaya_lyrics_in_bengali_script.pdfIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/rutuk.pdfIn PDF document text
    • https://s3.amazonaws.com/telasebisu/what_to_say_about_your_background_in_an_interview.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_off0000db4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB4E 5720 bytes
SHA-256: a955fea6d2f15096fb7a2b549a5f2cc172fbd14207d7ee5ff484a8b247889c4d
font_01_sfnt_off0000eea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA8 11236 bytes
SHA-256: 4b2771d2ac45d783710e0800b6265d5e43fb02780dc1ebc31d0a3e7615237b2c

Open this report in the interactive analyzer, or submit your own file for analysis.