Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0465f14d6cb0cbd…

MALICIOUS

PDF

40.8 KB Created: 2020-09-02 22:03:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cdbb90742b2b3a421a0cecd3b47824c SHA-1: 96780578264ac0d4ca865741fcb92c47df165ddd SHA-256: c0465f14d6cb0cbd8fc2e653f4db23e1f4ac89779a1958080402d2750fb9a969
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.me/wix?keyword=beyond+compare+software+user+guide', is designed to lure users to malicious infrastructure. The file also exhibits characteristics of a PDF SEO link farm, with numerous embedded links, suggesting an attempt to manipulate search engine results or distribute malicious content. No scripts were extracted from this sample.

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.me/wix?keyword=beyond+compare+software+user+guide
    • https://static.usrfiles.com/ugd/432b07_ec0b920bf514424b8a35371b06d047a2.pdf
    • https://static.usrfiles.com/ugd/7c30af_8d700fc735cf465193bea6bfbb4fba52.pdf
    • https://static.usrfiles.com/ugd/bf07b1_6dc49e5aea8c448abdc2a0662a90e554.pdf
    • https://static.usrfiles.com/ugd/c83fdb_35825a5a1ed44225bd62ba82873602a7.pdf
    • https://cdn.shopify.com/s/files/1/0429/9486/0191/files/el_arenque_rojo.pdf
    • https://cdn.shopify.com/s/files/1/0435/1003/8683/files/90434923198.pdf
    • https://cdn.shopify.com/s/files/1/0433/6041/9989/files/graphing_trig_function_transformations_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/visiting_card_design_online_cdr_free.pdf
    • https://cdn.shopify.com/s/files/1/0434/6970/1280/files/gradlew_build_apk.pdf
    • https://cdn.shopify.com/s/files/1/0429/7208/6435/files/medical_laboratory_technology_mukherjee.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rapuz.pdf
    • https://cdn.shopify.com/s/files/1/0433/8368/5274/files/95866764116.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_off00006069.bin
f89e7dd055a6685fd87224952223cd60c5b9e76049f53457546746258f213232		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6069 5684 bytes
font_01_sfnt_off000073cf.bin
606768d2668cb00ad5eae3e8cc726a9cb3500caf344e23a34c89298163c916b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73CF 10192 bytes

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