Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a92efe7462e5155…

MALICIOUS

PDF

48.2 KB Created: 2020-08-13 00:32:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 794a9977afbb4911e27433964f2ec589 SHA-1: e09a7f7dccce370d979a63d0bcd60d94bb5fbf08 SHA-256: 2a92efe7462e5155ad140a7fcc61b210215d89c485bd675ecc842cbb63836d0a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a 'Versailles peace treaty pdf'. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to PDF files, likely to manipulate search engine results or distribute further malicious content. The primary malicious IOC is the redirector URL, which is designed to lead users to a harmful destination.

Heuristics 3

  • 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.
  • 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=versailles+peace+treaty+pdf
    • http://files.letmebegreatchildrensyoga.com/uploads/1/3/1/0/131070560/3581323.pdf
    • http://tisoreli.noidurham.org/uploads/1/3/0/8/130814328/feb85a1c14.pdf
    • http://files.angelinanikon.com/uploads/1/3/1/6/131636769/dimoposewanap-banujirimepolad-ranujitixediv-simes.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tipibag.pdf
    • https://cdn.shopify.com/s/files/1/0430/7959/8229/files/zefixepijuwiwoxasozukeguw.pdf
    • https://cdn.shopify.com/s/files/1/0427/5296/6812/files/gukujafa.pdf
    • https://cdn.shopify.com/s/files/1/0430/6193/6290/files/xebevabajanuf.pdf
    • https://cdn.shopify.com/s/files/1/0429/8866/7033/files/ballade_pour_adeline_piano_sheet_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/0097/8853/files/94136419474.pdf
    • https://cdn.shopify.com/s/files/1/0430/9994/7162/files/clasificacin_de_bacterias_gram_positivas_aerobias_y_anaerobias.pdf
    • https://cdn.shopify.com/s/files/1/0433/9649/7573/files/pradhan_mantri_awas_yojana_form_gujarati.pdf
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/ruxixukadi.pdf
    • https://cdn.shopify.com/s/files/1/0435/8835/4207/files/libro_para_colorear_unicornio.pdf
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/15720523830.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064e1.bin
c8006575c7881b702451b0493edcd5612cb05bee39975e239bb523d937254e6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64E1 7388 bytes
font_01_sfnt_off00007e26.bin
27e6a557f66812fb38b91a61bab0a99976ed4de28e9f7cb35e4d01dcb9cfdfef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E26 5216 bytes
font_02_sfnt_off00008ff8.bin
34663b16c23250222cdbe8d5bab7e4f452dada8593a5abfd009007b8b5e80889		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF8 10500 bytes

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