Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d0c29fc444ad7a…

MALICIOUS

PDF

102.2 KB Created: 2020-08-23 06:09:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c3cc928ebdae1ec7673e7b020e2661d SHA-1: 56e25eca7b4eb7848cadfa7e03060eda4ac0ed13 SHA-256: c7d0c29fc444ad7a181b4bf586a76571442fc429e30dde5e8fbf69bf777477df
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=anne+of+green+gables+anime'. This URL is presented within the document body, suggesting a social engineering lure. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The primary intent appears to be redirecting users to malicious infrastructure.

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.ru/pify?keyword=anne+of+green+gables+anime
    • http://files.fairdistrictsohio.org/uploads/1/3/0/8/130815115/fobifaja.pdf
    • http://zamiwabo.tipsyglasswinery.com/uploads/1/3/2/7/132740829/4b7cb0f7ddc829a.pdf
    • https://cdn.shopify.com/s/files/1/0437/9174/5175/files/59384071504.pdf
    • https://cdn.shopify.com/s/files/1/0435/3546/6655/files/73269209701.pdf
    • https://cdn.shopify.com/s/files/1/0431/5630/8123/files/ziwewopafemused.pdf
    • https://cdn.shopify.com/s/files/1/0432/6028/0982/files/52966874792.pdf
    • https://cdn.shopify.com/s/files/1/0434/3850/6146/files/posinixepozawitazim.pdf
    • https://cdn.shopify.com/s/files/1/0434/6534/3141/files/kenny_g_havana_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/54791396058.pdf
    • https://cdn.shopify.com/s/files/1/0451/0878/9413/files/complex_sentences_exercise.pdf
    • https://cdn.shopify.com/s/files/1/0429/5258/9465/files/rokevudusu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5474/3200/files/habanera_from_carmen_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0430/3355/9203/files/53813620646.pdf
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/nios_hall_ticket_2020_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/8834/6262/files/pathogenesis_of_depression.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_off0000aa94.bin
7be8ba782132dc9532c7ce10a8a5b5a2c22ef7e8a7c9e895bf771068adfce339		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA94 56892 bytes
font_01_sfnt_off000156e3.bin
74650bacec11b5d55b1dace6b074a1fab525029ed2f5cf1c7dc03b71a9ec4cde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x156E3 5216 bytes
font_02_sfnt_off0001688e.bin
91085bca65ed45f9665377b0c9420d21080305f4be4784b83c496f7360a0074b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1688E 10144 bytes

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