Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d6e6e2eab47ae01…

MALICIOUS

PDF

51.9 KB Created: 2020-08-08 00:42:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff8edfe0cf8916b80ace1f1f7de2a39a SHA-1: 6319c7669efab8d927398640afc488dfab5c2294 SHA-256: 2d6e6e2eab47ae01ee9a1beaad7157177662b4b1f1bb9da2dae961b783a44a51
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body also contains the same URL, presented as a download link for a 'Navodaya admission form 2020 pdf download'. This indicates a social engineering lure to redirect users to malicious infrastructure. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=navodaya+admission+form+2020+pdf+download
    • http://files.amgilmorefineart.com/uploads/1/3/2/6/132682883/wabep-pinuzajozop-tamezadojaro-waxonexutezum.pdf
    • http://files.economicthinkers.com/uploads/1/3/1/1/131163620/baxadawolotu.pdf
    • http://files.wapitinordic.com/uploads/1/3/1/4/131407469/kixilopusiripug.pdf
    • https://cdn.shopify.com/s/files/1/0434/4909/0200/files/types_of_malicious_code.pdf
    • https://cdn.shopify.com/s/files/1/0437/5805/9674/files/arketipo_magazine.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99397771733.pdf
    • https://cdn.shopify.com/s/files/1/0432/2240/1192/files/572915133.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/48345225554.pdf
    • https://cdn.shopify.com/s/files/1/0438/4748/3557/files/ley_anticorrupcion_bolivia.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/parisibudipaxetiwori.pdf
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/doxillion_document_converter.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/13370361069.pdf
    • https://cdn.shopify.com/s/files/1/0431/5358/8390/files/966459587.pdf
    • https://cdn.shopify.com/s/files/1/0440/6339/1894/files/54876261518.pdf
    • https://cdn.shopify.com/s/files/1/0432/0333/0209/files/nena_malo_mix.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_off00007be4.bin
a914026eae7c09c7850a1df475894e5afd3d9d4008ed32b46531a311d7b861f5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE4 5684 bytes
font_01_sfnt_off00008f4b.bin
58f61f133fa9ff6fcaf28387e2e575f6c7eeafae1eb48aaf12c2d0836346fa78
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F4B 2912 bytes
font_02_sfnt_off00009b8e.bin
d983c549f171aea0b94078387c49a3d956f554d68c053ea2a279dd9ae315aad1
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B8E 11888 bytes