Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e73a3d2afc0901a…

MALICIOUS

PDF

83.3 KB Created: 2020-11-17 10:42:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 7dc2ac40f3ec42e780edad27e21c17b3 SHA-1: 19e8664268876603a65c66d679cdfe43a8430ffa SHA-256: 8e73a3d2afc0901adc98d542a8f0aa3a889a07e4f99c4f8b5b7bbe5ad3baba88
156 Risk Score

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 0.9998

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://traffking.ru/strik?utm_term=focusrite+scarlett+2i4+manual PDF link annotation
    • https://lofelafor.weebly.com/uploads/1/3/4/6/134665038/gazowajojofoz-mobeki-pemule.pdfIn PDF document text
    • https://mujunoba.weebly.com/uploads/1/3/2/6/132682006/6163508.pdfIn PDF document text
    • https://nifubadipapa.weebly.com/uploads/1/3/4/3/134388301/e7da3396065.pdfIn PDF document text
    • https://xuxewisi.weebly.com/uploads/1/3/4/2/134235501/gapawe_jefilizotamam_zebufazana_kuneloxamaxula.pdfIn PDF document text
    • https://tenikekiso.weebly.com/uploads/1/3/0/7/130775729/84382a2655db.pdfIn PDF document text
    • https://mejefarekobuk.weebly.com/uploads/1/3/4/3/134338461/adb1c16411c6e1c.pdfIn PDF document text
    • https://vabeliguteziji.weebly.com/uploads/1/3/1/3/131379360/8070014.pdfIn PDF document text
    • https://maguduvogusimog.weebly.com/uploads/1/3/4/5/134583052/3789053e512.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/felasorarabipis/sojomiwotufosopaxadi.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/printer_not_responding_canon_e470.pdfIn PDF document text
    • https://s3.amazonaws.com/zibenoroduzuw/benefits_of_technology_phone.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/19105880659.pdfIn PDF document text
    • https://s3.amazonaws.com/varolexexus/94762088882.pdfIn PDF document text
    • https://s3.amazonaws.com/vezosoluvezoj/neopets_negg_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/bourne_supremacy_soundtrack.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/doraemon_story_of_seasons_pc_free.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_off0000fba7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBA7 5120 bytes
SHA-256: 35c52d3dfe228fa42c6b5d9722a35b9ac4429699be39abc7d6670d85ca455f16
font_01_sfnt_off00010d09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D09 17092 bytes
SHA-256: 3c4c67e7da91674adfe8bb25f9f3bcbe9843c418cf6dd28cb0aee468abbf6e1a

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