Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b2a9e4cc3a8a2b4…

MALICIOUS

PDF

34.1 KB Created: 2020-08-30 04:42:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 24af5927c07cda9f50fb8e2876162c9a SHA-1: 8e49532ce6a180172165c1b2dff39a4b9d69bff3 SHA-256: 1b2a9e4cc3a8a2b43c3028dc3329d93ca80cff70cd33335a598b0cf8032bbafd
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF file contains a malicious redirector link disguised as a search result for 'Cummins pt fuel pump for sale'. This link points to 'ttraff.com', which is flagged as malicious. The document also exhibits characteristics of a link farm, embedding numerous links, many of which point to benign Shopify URLs, likely as a tactic to improve search engine ranking for the malicious link. No scripts were extracted from this sample.

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=cummins+pt+fuel+pump+for+sale
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/africa_toto_piano_sheet_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0439/5014/5704/files/mesakuvalugegubokefiwita.pdf
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/tata_starbucks_case_study.pdf
    • https://cdn.shopify.com/s/files/1/0433/0346/9206/files/assert_25_mg_bula.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1637/files/mewepevudidutukaxesedude.pdf
    • https://cdn.shopify.com/s/files/1/0436/5156/3670/files/behold_the_dreamers.pdf
    • https://cdn.shopify.com/s/files/1/0438/1533/8144/files/98224006215.pdf
    • https://cdn.shopify.com/s/files/1/0429/9423/7599/files/paxarozofuvaradugagip.pdf
    • https://cdn.shopify.com/s/files/1/0431/1652/7770/files/23616854250.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9204741539.pdf
    • https://cdn.shopify.com/s/files/1/0435/2950/2874/files/balopurojupefuk.pdf
    • https://cdn.shopify.com/s/files/1/0432/1103/0683/files/89043243904.pdf
    • https://cdn.shopify.com/s/files/1/0431/6043/6896/files/coreldraw_format_converter_online.pdf
    • https://cdn.shopify.com/s/files/1/0428/9173/9295/files/desazipiwiwezusipebip.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_off000047bc.bin
8921c6bd2008760202027d7ce7fba499c6522b0e5d00bc3178abadaf5b88fa8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47BC 4952 bytes
font_01_sfnt_off00005873.bin
3678fbdad7a2080d0fce8ff46f04fb823dc8badfd52564619228253542dd9041		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5873 10364 bytes

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