Malicious PDF — malware analysis report

Static analysis result for SHA-256 36a24dba0c4aa2a8…

MALICIOUS

PDF

40.3 KB Created: 2020-08-06 18:58:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82216c067686974a60ac6041a74135b9 SHA-1: c788045dd7cd2e87e4c52d66358be6fa7b353ec1 SHA-256: 36a24dba0c4aa2a8b7c620f64f614bb844eb2ef12acd36e5935f065556e76918
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This indicates the document's primary purpose is to lure the user to a malicious site. The document body, though heavily obfuscated, contains the same URL, reinforcing this finding. No scripts were extracted, but the presence of a malicious redirector is sufficient evidence of a phishing or redirection attack.

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=el+cerebro+y+la+creatividad+pdf
    • http://files.daultkait.org/uploads/1/3/0/7/130738876/6216851.pdf
    • http://kibupo.activekidzyoga.com/uploads/1/3/1/6/131607131/ff13f217b.pdf
    • http://vodiki.fbcpottstown.org/uploads/1/3/0/7/130775403/9171013.pdf
    • https://cdn.shopify.com/s/files/1/0434/6180/4197/files/11071321023.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wimuwukewamofese.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/mercedes_c_class_2020_brochure.pdf
    • https://cdn.shopify.com/s/files/1/0434/2949/4933/files/18215728327.pdf
    • https://cdn.shopify.com/s/files/1/0431/9716/9824/files/lumasopivugitevid.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/andreas_moritz_amazing_liver_cleanse.pdf
    • https://cdn.shopify.com/s/files/1/0428/3187/2166/files/xeresizesa.pdf
    • https://cdn.shopify.com/s/files/1/0430/3477/1610/files/35470093210.pdf
    • https://cdn.shopify.com/s/files/1/0429/9446/6969/files/csr_racing_2_hack_apk.pdf
    • https://cdn.shopify.com/s/files/1/0432/9861/9557/files/sataxobosewutobepoje.pdf
    • https://cdn.shopify.com/s/files/1/0435/3156/7256/files/67103334489.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_off00005fe5.bin
90c727f03fc1b26d64ece225f68b1fe1a95b6536ada14f79b75773ab797809a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE5 5232 bytes
font_01_sfnt_off000071d0.bin
ded63d079f55ace091cf6be01303224c9e1920214bbe491b491c803cbfa517b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71D0 10720 bytes

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