Malicious PDF — malware analysis report

Static analysis result for SHA-256 53489f99bdced38b…

MALICIOUS

PDF

42.0 KB Created: 2020-08-19 08:43:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 78c8562eb14f2c160bbc20e0b46df2e8 SHA-1: 61ca2655624cecb9370384932b079d98a897bf1a SHA-256: 53489f99bdced38b38165f349bf2e2d62dad960c2a2c55844f15537f8afc1ec7
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=dos+6.+22+bootable+usb, which is likely used to funnel victims to a phishing or malware distribution site. The document body, though heavily obfuscated, contains references to 'Dos 6. 22 bootable usb', suggesting a lure to trick users into clicking the malicious link.

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=dos+6.+22+bootable+usb
    • http://nifetejoj.pawsplayground.co.uk/uploads/1/3/1/4/131407921/305734.pdf
    • https://cdn.shopify.com/s/files/1/0440/3462/1590/files/ronepojiz.pdf
    • https://cdn.shopify.com/s/files/1/0434/0691/7799/files/51763281725.pdf
    • https://cdn.shopify.com/s/files/1/0433/4940/9960/files/38252430667.pdf
    • https://cdn.shopify.com/s/files/1/0428/9118/2243/files/ashish_arora_physics_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/5702/9019/files/92672523221.pdf
    • https://cdn.shopify.com/s/files/1/0436/3934/1216/files/prime_minister_awas_yojana_form.pdf
    • https://cdn.shopify.com/s/files/1/0429/4079/2999/files/99608145588.pdf
    • https://cdn.shopify.com/s/files/1/0435/9153/2699/files/lunasurimajo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8249/7701/files/senuresezokebabapezes.pdf
    • https://cdn.shopify.com/s/files/1/0433/2247/4651/files/17699837857.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_off00005a1e.bin
8388a442c963a37611c4505f275048b678c906ee1dae98b9be475da4cdf7985d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A1E 4768 bytes
font_01_sfnt_off00006a62.bin
f17e65f8eede0572f153dd5cd435951aec0e0cf2eddd86c170ed857a1f0234a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A62 10268 bytes
font_02_sfnt_off00008d8d.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D8D 4324 bytes

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