Malicious PDF — malware analysis report

Static analysis result for SHA-256 49cdc4d5b556613a…

MALICIOUS

PDF

41.5 KB Created: 2020-08-25 19:33:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79d4ba15b117875f9547d1cbeca895e0 SHA-1: f27c3e056f04b41a7b26e6ea5c92446538d09d5e SHA-256: 49cdc4d5b556613ad72240b9f4502f3b8f909d99633d736ed8f013ed9efb0006
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to downloading a game and the malicious URL itself. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, limiting the analysis of direct payload execution.

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=how+to+download+street+legal+racing+redline
    • http://files.briannafund.org/uploads/1/3/2/6/132695639/00b7c.pdf
    • https://cdn.shopify.com/s/files/1/0428/7237/3411/files/ipratropium_inhaler_davis.pdf
    • https://cdn.shopify.com/s/files/1/0462/9318/8769/files/manualidades_con_reciclaje_para_nios_pequeos.pdf
    • https://cdn.shopify.com/s/files/1/0452/1220/5216/files/bncc_infantil.pdf
    • https://cdn.shopify.com/s/files/1/0463/5177/7954/files/moulinex_home_bread_manual.pdf
    • https://cdn.shopify.com/s/files/1/0439/6164/7262/files/92595156338.pdf
    • https://cdn.shopify.com/s/files/1/0432/5936/3478/files/bootstrap_state_dropdown.pdf
    • https://cdn.shopify.com/s/files/1/0435/9972/4703/files/83888802040.pdf
    • https://cdn.shopify.com/s/files/1/0438/5384/0534/files/fefowidupo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1633/1172/files/rixubojuful.pdf
    • https://cdn.shopify.com/s/files/1/0432/2459/6642/files/38772992123.pdf
    • https://cdn.shopify.com/s/files/1/0437/0504/1051/files/ripinanimevudusad.pdf
    • https://cdn.shopify.com/s/files/1/0432/7230/6843/files/fixorasadipukogukixu.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_off00005fe6.bin
c2e012387f2af2e7d912ee01f6ddd5bdc8e6619fd0bc254b745a62e5f6ef59bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE6 5160 bytes
font_01_sfnt_off00007192.bin
0d853d3311f580a81cc774c05770c2617f5b47dea3c662d40d9f527fa9327ef2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7192 11888 bytes

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