Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3a2beb1b79b9a97…

MALICIOUS

PDF

38.1 KB Created: 2020-05-16 11:55:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-04
MD5: 5811a16704765eac79504af4a6399a1c SHA-1: 762c8fe916601c13788aff3e49c8b05624a9f6f9 SHA-256: b3a2beb1b79b9a97735f1a8434e19fbca2186a191e4ec85aeacc17676833d576
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which point to other PDF files hosted on similar domains. The document body text mentions 'Curriculum vitae format 2019 south africa', suggesting a lure to disguise the malicious intent. The primary attack pattern involves directing users to a network of suspicious URLs, likely for phishing or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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 http://belgitours.com/uploads/1/3/0/2/130289339/130289339.html#curriculum+vitae+format+2019+south+africa PDF link annotation
    • http://readysetprosper.com/uploads/1/3/1/4/131437981/rijurabosupuke.pdfIn PDF document text
    • http://bitemefirearms.net/uploads/1/3/0/4/130476628/lixapu_sadimaguda.pdfIn PDF document text
    • http://erinlampa.com/uploads/1/3/0/3/130379757/f912f.pdfIn PDF document text
    • http://imperialservicos.com/uploads/1/3/0/5/130539553/2d78fe.pdfIn PDF document text
    • http://time2cbdok.com/uploads/1/3/0/4/130488574/1184749.pdfIn PDF document text
    • http://myroyalorganics.com/uploads/1/3/0/3/130379824/2bdad20db268.pdfIn PDF document text
    • http://cowle.de/uploads/1/3/0/2/130270777/bd54f68ba379.pdfIn PDF document text
    • http://backtobal.services/uploads/1/3/0/6/130640209/42b3014e327911.pdfIn PDF document text
    • http://evanhc.com/uploads/1/3/0/2/130288401/nowijatogam.pdfIn PDF document text
    • http://shrangel.com/uploads/1/3/0/4/130436271/sutebezalixup-kozumekeg.pdfIn PDF document text
    • http://sgrahamdesign.com/uploads/1/3/0/3/130379367/zegitinewexologitipi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A29 10284 bytes
SHA-256: 0dc8fe051e43488c6185ca9da20856fe574995ad6d7d398039a0e4eddb0444b5

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