Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0f1cebe60a354dd…

MALICIOUS

PDF

62.1 KB Created: 2020-08-22 05:51:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ea753cffc7c78b81214d02df1260862b SHA-1: caa97b0333b2e3d2fc8eeb6cf7281d4cf13b6e3a SHA-256: f0f1cebe60a354dd09df6570e6847a63098c0946d68baf2975df412246cf1a51
138 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a WooCommerce email template hook. The document also exhibits characteristics of a fake invoice or download lure, further encouraging user interaction with the malicious link. The presence of a large number of external PDF links, many pointing to Shopify, suggests a link farm designed to obscure the ultimate destination and potentially for SEO manipulation.

Heuristics 5

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=woocommerce+email+template+hooks
    • http://files.moldandwaterdamagespecialistinc.com/uploads/1/3/2/7/132740723/fimit.pdf
    • http://files.millsitegolfcourse.com/uploads/1/3/1/3/131382447/nederikexipikila.pdf
    • https://cdn.shopify.com/s/files/1/0434/3303/3877/files/aqa_a_level_economics_revision_notes.pdf
    • https://cdn.shopify.com/s/files/1/0434/2641/4749/files/89751751648.pdf
    • https://cdn.shopify.com/s/files/1/0431/3363/2661/files/vekugijapefo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6127/2983/files/how_to_get_andhra_bank_statement_in.pdf
    • https://cdn.shopify.com/s/files/1/0437/2309/6216/files/xuwukogekumijaxunukud.pdf
    • https://cdn.shopify.com/s/files/1/0429/6350/1222/files/66302908331.pdf
    • https://cdn.shopify.com/s/files/1/0431/0512/4503/files/half_brick_games_for_android_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/4193/7818/files/89407603616.pdf
    • https://cdn.shopify.com/s/files/1/0434/3624/5144/files/dagin.pdf
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/duroj.pdf
    • https://cdn.shopify.com/s/files/1/0435/9313/8333/files/bopisevo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3144/5156/files/soduwuxowizigenozuzazusi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ziduvawijixivobufanevi.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008329.bin
5deb66182e104eeb1d3e3e75a0473cbea00104e6513327676e8f7af3ac14f8f8
pdf-font-stream PDF embedded font (sfnt) at offset 0x8329 4932 bytes
font_01_sfnt_off000093e7.bin
b2e94a89d6c7bf9f0b66e294709c5c439b12140608ef309a2899d023792b55dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x93E7 15560 bytes
font_02_sfnt_off0000c4e9.bin
8da24c83b4f640f797f5169fb03cee6fad74c5c584fce018fd997215621b3008
pdf-font-stream PDF embedded font (sfnt) at offset 0xC4E9 16948 bytes
font_03_sfnt_off0000dcd2.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0xDCD2 4324 bytes