Malicious PDF — malware analysis report

Static analysis result for SHA-256 aac7a63f9a7c3f50…

MALICIOUS

PDF

33.1 KB Created: 2020-08-31 23:33:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 30ee41ea40812b1c61103ef4e37548a8 SHA-1: f591a6d6fd84db33d1523349fc948ac1f2730165 SHA-256: aac7a63f9a7c3f50e429b02677690fbc78fc770734f9f501c9ff4b022acad272
130 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL and appears to use a lure related to 'Be forward toyota hiace manual' to encourage clicks. The presence of a malicious redirector suggests the intent is to lead the user to a site for phishing or malware distribution.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/wix?keyword=be+forward+toyota+hiace+manual
    • https://cdn.shopify.com/s/files/1/0435/7675/4344/files/nujeragasaj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9386/9223/files/xajofudafubuxupigevufi.pdf
    • https://cdn.shopify.com/s/files/1/0437/8581/4173/files/bearing_o_level_maths.pdf
    • https://cdn.shopify.com/s/files/1/0432/0188/8416/files/76157602396.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/91489653134.pdf
    • https://cdn.shopify.com/s/files/1/0438/2015/5037/files/29709417595.pdf
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/wetebikojofosixewapimef.pdf
    • https://cdn.shopify.com/s/files/1/0431/1112/1063/files/pentax_me_super_manual.pdf
    • https://cdn.shopify.com/s/files/1/0431/3789/2509/files/79275439446.pdf
    • https://cdn.shopify.com/s/files/1/0445/4167/3636/files/5e_giant_soul_sorcerer.pdf
    • https://cdn.shopify.com/s/files/1/0432/4796/0232/files/gelatin_sheets_to_powder_conversion_in_grams.pdf
    • https://cdn.shopify.com/s/files/1/0439/0558/1211/files/vokobapirapaxilosalatif.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_off0000443f.bin
a139bb095a005cd7d286da391b19d3ac9d175c10021e8135013d5114504734d7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x443F 5328 bytes
font_01_sfnt_off0000564e.bin
7e9e900c9f0c054685dab615606d2fba00c46016b276b4fd42b28966712fc0c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x564E 9856 bytes

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