Malicious PDF — malware analysis report

Static analysis result for SHA-256 00b299f77201bb04…

MALICIOUS

PDF

34.2 KB Created: 2020-08-04 15:18:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f47518de0f3f026f2f417945c8b6e9f7 SHA-1: c8646ccef1753fda73143915094f4428c4e42120 SHA-256: 00b299f77201bb041b0364e7f8cf206dad214305f19413d1f56f8693ee6e8e96
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains embedded links, one of which, https://ttraff.com/pify?keyword=africa+map+blank+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to this URL and other Shopify-hosted PDFs, suggesting a link farm or redirection scheme. The ML classifier strongly indicated maliciousness, supporting the conclusion that this PDF is designed to redirect users to harmful content.

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=africa+map+blank+pdf
    • http://wemepit.cindypolleyphotography.com/uploads/1/3/1/4/131411896/daxomojeze_pelonopo_tipunobi.pdf
    • http://files.andymcracing.com/uploads/1/3/0/7/130776123/kugiperebe-meweruvar-fijaxuk-lepirewikiw.pdf
    • http://files.spectrumdyslexiavision.co.uk/uploads/1/3/2/7/132710712/394015.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/8397/2256/files/pafesomi.pdf
    • https://cdn.shopify.com/s/files/1/0433/8201/4108/files/jogizafipimiket.pdf
    • https://cdn.shopify.com/s/files/1/0437/3171/4202/files/40575907917.pdf
    • https://cdn.shopify.com/s/files/1/0428/3482/1287/files/49061552012.pdf
    • https://cdn.shopify.com/s/files/1/0427/4742/9031/files/zonagareloxigugekinari.pdf
    • https://cdn.shopify.com/s/files/1/0428/4206/3004/files/50118273061.pdf
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/south_africa_political_map.pdf
    • https://cdn.shopify.com/s/files/1/0438/9309/6600/files/87288280800.pdf
    • https://cdn.shopify.com/s/files/1/0431/1498/7669/files/11204506359.pdf
    • https://cdn.shopify.com/s/files/1/0433/0710/6462/files/bonapalifotugase.pdf
    • https://cdn.shopify.com/s/files/1/0431/9238/5700/files/xotufovixi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2296/7206/files/42681334821.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_off000048bc.bin
919dee7dddb0f2991c89d781b7746e5b044c219e697c72781f048c884a4ce9b5
pdf-font-stream PDF embedded font (sfnt) at offset 0x48BC 5316 bytes
font_01_sfnt_off00005ab6.bin
cfb7239106d85c0eafd8e54bf4869183c34918573a610318600d6c6f2639391f
pdf-font-stream PDF embedded font (sfnt) at offset 0x5AB6 9828 bytes