Malicious PDF — malware analysis report

Static analysis result for SHA-256 92dad4d350de904f…

MALICIOUS

PDF

44.0 KB Created: 2020-08-07 14:26:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f6cfcde1d28e2d1416cb62fbb0a391c SHA-1: 538fcf0a9e0b1d2ff912460524e4c93d81e057df SHA-256: 92dad4d350de904fabc06e3ba52d2ad16f89d9bc0c69eb571da46120c766dc6b
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'ttraff.com'. This indicates the document is designed to redirect users to malicious infrastructure. The PDF_SEO_LINK_FARM heuristic further suggests a large number of outbound links, likely for SEO manipulation or to obscure the malicious redirector. The primary malicious IOC is the redirector URL.

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=mechanisms+of+cardiac+arrhythmias+pdf
    • http://mesewurob.northstarcharlotte.org/uploads/1/3/2/6/132696111/593749.pdf
    • http://zovuwed.timanderson.eu/uploads/1/3/1/4/131452883/5596221.pdf
    • http://files.littleeedenfarm.com/uploads/1/3/2/6/132681144/mizifix_wagogimetoge.pdf
    • http://files.vandegriftgolf.com/uploads/1/3/0/8/130814124/6d6f39bdf2179.pdf
    • https://cdn.shopify.com/s/files/1/0431/5840/5275/files/lavep.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13977314479.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nidosavexurirevinuno.pdf
    • https://cdn.shopify.com/s/files/1/0431/5054/0964/files/83173517973.pdf
    • https://cdn.shopify.com/s/files/1/0436/1427/3693/files/bodybuilding_exercises_training.pdf
    • https://cdn.shopify.com/s/files/1/0431/7007/0690/files/meduluvasig.pdf
    • https://cdn.shopify.com/s/files/1/0439/3032/1051/files/krishna_gadi_veera_prema_gadha_watch_online.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bolosenisom.pdf
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/fejimen.pdf
    • https://cdn.shopify.com/s/files/1/0429/9581/0455/files/risafamenezudekiji.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006fc2.bin
9ee0afda806c43e851dbc06b33e7b74e6d8475cefe7ef553c40e18a96f50e8e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC2 5472 bytes
font_01_sfnt_off0000824a.bin
b7b120b4f143209d32a53f7b937a00c365f4375c3fa4dad6028585a2304acac5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x824A 9552 bytes

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