Malicious PDF — malware analysis report

Static analysis result for SHA-256 04c11858f75f999f…

MALICIOUS

PDF

73.1 KB Created: 2021-02-23 14:56:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f24293e4a6e0fbd1d38cc389d0b95409 SHA-1: d92af4df637ef66654c5050a067ec67a4b2f646d SHA-256: 04c11858f75f999fff3095695d2d14ae47fabaec3e0cbf1b822b70b2efa7b689
156 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains numerous external links, suggesting a link farm or redirection mechanism to a malicious site. The embedded URL 'https://baarspo.ru/strik?utm_term=how+much+do+entry+level+digital+marketers+make' appears to be a lure, disguised as a search result to encourage clicks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/strik?utm_term=how+much+do+entry+level+digital+marketers+make PDF link annotation
    • https://cdn.sqhk.co/nuzozuni/jfOvUzw/wamalet.pdfIn PDF document text
    • https://tamukatiraf.weebly.com/uploads/1/3/4/7/134766395/4130898.pdfIn PDF document text
    • http://saudiautoinsurance.com/638557784132r7bq.pdfIn PDF document text
    • http://persequen.com/alliance_guns_of_gloryj4zer.pdfIn PDF document text
    • http://salearea.pro/xukivepuxakivawwhu06.pdfIn PDF document text
    • http://femokotafi.66ghz.com/36815889182.pdfIn PDF document text
    • https://cdn.sqhk.co/jotenitix/ibJGidO/bozuvobomox.pdfIn PDF document text
    • http://talakam.space/java_compiler_for_macrki64.pdfIn PDF document text
    • https://cdn.sqhk.co/fupupusamun/ahaicia/29625354632.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/zuwimadaneb/blades_of_time_for_pc.pdfIn PDF document text
    • http://vaxufedujij.rf.gd/2_factors_determine_the_climate_of_a_region.pdfIn PDF document text
    • https://s3.amazonaws.com/dazuxujepov/tecsun_pl_380_manual_portugues.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/car_bill_of_sale_template_word_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/jabenifu.pdfIn PDF document text
    • https://s3.amazonaws.com/fidobakipivogit/emulator_android_pc_nox.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_off0000e0d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D8 5632 bytes
SHA-256: 1d72b0cd952c7de750571efa1ea41dc3ab6db0e70a9cb92c6ece15785a047ce3
font_01_sfnt_off0000f3ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3EC 10168 bytes
SHA-256: 6c5cf5f6c3a0593530aa4814e372a3264a516dcbdab864534ddcd50b6ca1e827

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