Malicious PDF — malware analysis report

Static analysis result for SHA-256 045470ccdce4cee6…

MALICIOUS

PDF

42.8 KB Created: 2020-08-21 16:28:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a5a4030809b3213d17ba0d01b172f653 SHA-1: 8547f388ebcddd506d2b47264d0d1a06d89e4d76 SHA-256: 045470ccdce4cee6a763702c972de707d5608c1f2c20f9cf71769703cfeb586a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, many pointing to redirector infrastructure, indicating a link farm or phishing attempt. The primary malicious link identified is https://ttraff.com/pify?keyword=nice+paediatric+palliative+care+guidelines, which is flagged as a known malicious redirector. The document body, though partially corrupted, also contains this URL and other Shopify links, suggesting an attempt to disguise malicious activity within a large collection of seemingly benign links.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.com/pify?keyword=nice+paediatric+palliative+care+guidelines
    • http://vafikama.bioprimehp.ca/uploads/1/3/0/7/130740072/8082299.pdf
    • http://files.burmataskforce.ca/uploads/1/3/1/6/131636644/10cf1.pdf
    • http://files.awakeningthedivinewithin.com/uploads/1/3/1/6/131606025/68c0d68e68.pdf
    • http://files.mosaicartsfestival.com/uploads/1/3/2/6/132683080/dunitotabepaxu-kaguxibidu-lapusexavemu.pdf
    • http://files.claytonbrowneortho.com/uploads/1/3/0/8/130813762/bovufefafelef.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/fasabebinili.pdf
    • https://cdn.shopify.com/s/files/1/0465/0011/8680/files/passive_aggressive_definition_yahoo_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/3063/3881/files/rotate_90_degrees.pdf
    • https://cdn.shopify.com/s/files/1/0452/4307/2674/files/aqw_legion_revenant_class_guide.pdf
    • https://cdn.shopify.com/s/files/1/0427/8845/4559/files/kujekukizanarojade.pdf
    • https://cdn.shopify.com/s/files/1/0440/8125/0469/files/24713077283.pdf
    • https://cdn.shopify.com/s/files/1/0432/3436/1503/files/57619033529.pdf
    • https://cdn.shopify.com/s/files/1/0428/2915/2423/files/60140723253.pdf
    • https://cdn.shopify.com/s/files/1/0432/5802/0004/files/dwc_separator_sheet_2014.pdf
    • https://cdn.shopify.com/s/files/1/0435/2966/6724/files/libro_de_instrumentacion_electronica_moderna.pdf
    • https://cdn.shopify.com/s/files/1/0427/7728/0671/files/advanced_excel_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/8000/0422/files/beginner_muscle_building_workout_routine.pdf
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/rusowobenikozunodozuniva.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006934.bin
b37542e1cf6bd715dcfecffb17bd2105c068b99addfd5b51be28be10b2be35b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6934 5268 bytes
font_01_sfnt_off00007b2d.bin
f050c71f052e5dd775ea5cc622911be48cf48b7a0260bec8198e1fea437af96b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B2D 10200 bytes

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