Malicious PDF — malware analysis report

Static analysis result for SHA-256 7080eac21a26a52e…

MALICIOUS

PDF

75.8 KB Created: 2020-12-31 14:13:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: c281c19321defedd844aec3c67fea2f4 SHA-1: 6e64490b098b6279000993410813dd4e1d3b3a46 SHA-256: 7080eac21a26a52ede3a84e66b31d3140ebb6ae78b2c35d48d4a52a444b9e70e
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The document contains a large number of external links, suggesting a link farm or phishing attempt. The presence of a 'download button' heuristic further supports a social engineering attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://traffnew.ru/strik?utm_term=idle+inn+tycoon+extra+items PDF link annotation
    • https://cdn.sqhk.co/veleviziwew/jjhgdhj/nail_it_handyman_service.pdfIn PDF document text
    • https://jabekidedur.weebly.com/uploads/1/3/1/6/131636775/47cee988b174fa7.pdfIn PDF document text
    • https://cdn.sqhk.co/karapazepot/ickBxhd/golden_spike_rv_park_brigham_city_ut.pdfIn PDF document text
    • https://xomevore.weebly.com/uploads/1/3/4/3/134346529/4349567.pdfIn PDF document text
    • https://cdn.sqhk.co/bavisimupux/jbbjdkv/evertech_sandbox_mod_apk_android_1.pdfIn PDF document text
    • https://wukodotimage.weebly.com/uploads/1/3/4/4/134487216/4659705.pdfIn PDF document text
    • https://fepobiwebefu.weebly.com/uploads/1/3/4/5/134592484/8460371.pdfIn PDF document text
    • https://cdn.sqhk.co/navififoro/DVOZajj/undeniable_meaning_in_punjabi.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/kovezux/83172606945.pdfIn PDF document text
    • https://s3.amazonaws.com/kudowo/doforavefaxekopide.pdfIn PDF document text
    • https://s3.amazonaws.com/feborobegibew/mikolu.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/sukakolugoridanawufopik.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/website_er_apkpure.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_off0000ecfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECFC 5192 bytes
SHA-256: 6ff57e9bda2a4d5e8fffbec2b302976f1f06fe40b8e01bdae638e7cc3526708b
font_01_sfnt_off0000fe99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE99 10448 bytes
SHA-256: b2f382e254144783480e43f183642a6b8655f2bcf8893dd70f4bb621201a9868

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