Malicious PDF — malware analysis report

Static analysis result for SHA-256 0daf388623125a2e…

MALICIOUS

PDF

41.1 KB Created: 2020-08-09 02:24:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e4d627dbb06cd2d708c1e760dcd18fba SHA-1: 9406e9c066722fb605eee3be9a482e2060d41f5d SHA-256: 0daf388623125a2e24d583d79ec0272e7f3d9551c58330c0adc7166a717acf2b
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources, suggesting a link farm or SEO manipulation tactic. The primary URL, 'https://ttraff.com/pify?keyword=human+bones+and+muscles+pdf', is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate an attempt to redirect the user to malicious content, likely for phishing or malware distribution.

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=human+bones+and+muscles+pdf
    • http://files.herbsandsundries.com/uploads/1/3/2/6/132682787/4740659.pdf
    • http://files.newlifenaturalhealth.com/uploads/1/3/1/6/131636814/puxezudibejakutope.pdf
    • http://files.gift2giving.com/uploads/1/3/0/8/130874124/6094702.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0452/5824/4257/files/46607377752.pdf
    • https://cdn.shopify.com/s/files/1/0440/6237/6101/files/94889758786.pdf
    • https://cdn.shopify.com/s/files/1/0438/8651/0232/files/rotumudifutowusigetule.pdf
    • https://cdn.shopify.com/s/files/1/0429/5252/3929/files/35396618387.pdf
    • https://cdn.shopify.com/s/files/1/0434/7225/7181/files/67780887884.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58580374151.pdf
    • https://cdn.shopify.com/s/files/1/0435/2406/3392/files/abbyy_transformer_3._0_full_version_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/2051/5488/files/nitilejeluwarorunew.pdf
    • https://cdn.shopify.com/s/files/1/0433/9384/3356/files/country_list_csv.pdf
    • https://cdn.shopify.com/s/files/1/0432/8760/9497/files/caderea_constantinopolelui_carte.pdf
    • https://cdn.shopify.com/s/files/1/0435/1026/8064/files/bidogaxumodunuferowimulu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5661/0969/files/fisubokatebesaxujelupu.pdf
    • https://cdn.shopify.com/s/files/1/0437/2663/5162/files/bonhomme_allumette.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_off000064cf.bin
21337d40cbff8877d51d831f91cb04a0af0c3cce841c2aef441bbd5295c0d29f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64CF 5304 bytes
font_01_sfnt_off000076bd.bin
f3804d15d25b87b295837bf9bd975c342a265eaa6fbf4011b47f731bdf95b8b0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76BD 9576 bytes

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