Malicious PDF — malware analysis report

Static analysis result for SHA-256 9161dcb34b1836e2…

MALICIOUS

PDF

62.4 KB Created: 2020-08-30 04:43:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1337bc066d70488f7b3142383ba7dfde SHA-1: 73f864c90230414c2e3a9732717bb9fe90bb90f2 SHA-256: 9161dcb34b1836e29829d5d6c4d8a125842dee4ad466369f70e3edd02bfc9626
128 Risk Score

Malware Insights

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

The PDF file contains a link disguised as a Makita charger manual, which redirects to a malicious URL. The PDF also hosts a large number of external links, many pointing to Shopify, likely for SEO manipulation to improve search engine ranking for the malicious redirector. The presence of a call-to-action button further supports a phishing or social engineering attempt.

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.
  • 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.me/wix?keyword=makita+fast+charger+dc9700a+manual
    • https://cdn.shopify.com/s/files/1/0429/2942/2499/files/13437751981.pdf
    • https://cdn.shopify.com/s/files/1/0436/2623/4009/files/16029369924.pdf
    • https://cdn.shopify.com/s/files/1/0428/8934/7228/files/69926004567.pdf
    • https://cdn.shopify.com/s/files/1/0435/6158/2755/files/mosapifegadoxabe.pdf
    • https://cdn.shopify.com/s/files/1/0428/2155/0247/files/92070214755.pdf
    • https://cdn.shopify.com/s/files/1/0432/8888/7460/files/85657620485.pdf
    • https://static.usrfiles.com/ugd/a2e20a_6590d7853673409f86b175695bc714f3.pdf
    • https://static.usrfiles.com/ugd/b8c837_ae2353dbd8ff440390744f326616ca06.pdf
    • https://cdn.shopify.com/s/files/1/0435/0607/3759/files/acids_and_bases_word_search.pdf
    • https://cdn.shopify.com/s/files/1/0434/0498/4483/files/wuxereximodopud.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_off0000a2e0.bin
352a6a3051e7705b8635436b261b5947911068fca33ac599522e19bc1a5c5ec1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2E0 5656 bytes
font_01_sfnt_off0000b5f1.bin
f27735538d457a9e003c7abc891c2c05b4d1ea5636118d5e652debbb7613a4b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB5F1 12596 bytes
font_02_sfnt_off0000df10.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDF10 4324 bytes

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