Malicious PDF — malware analysis report

Static analysis result for SHA-256 225e1aa118932659…

MALICIOUS

PDF

52.6 KB Created: 2020-09-05 02:08:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57eb6790638fdbf6ea1f6cf3f09dc2df SHA-1: e6a1b945d018d24d002bfe940abfa34fc9e53502 SHA-256: 225e1aa118932659c4628d7cb272f73cd39e8d2f1f87a259fc09849b469d0035
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one heuristic specifically flagging it as a malicious redirector. The document body, though partially corrupted, contains text related to 'High risk hpv pap guidelines' and the malicious URL. The presence of numerous external PDF links, many pointing to Shopify and static hosting, suggests a link farm or SEO poisoning tactic to distribute malicious content. The primary malicious URL is https://ttraff.me/wix?keyword=high+risk+hpv+pap+guidelines, which is likely used to redirect users to a further malicious destination.

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=high+risk+hpv+pap+guidelines
    • https://cdn.shopify.com/s/files/1/0430/8176/0935/files/bergamota_doterra_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0432/9432/6942/files/fisatirumezaj.pdf
    • https://cdn.shopify.com/s/files/1/0437/2883/0625/files/61517488196.pdf
    • https://cdn.shopify.com/s/files/1/0465/8855/9525/files/handboek_appreciative_inquiry.pdf
    • https://static.usrfiles.com/ugd/5a1791_450dfd1c35924cb6bd3f652b67060906.pdf
    • https://static.usrfiles.com/ugd/a31856_113ba6cc34184073bebf647ab55a9d53.pdf
    • https://static.usrfiles.com/ugd/bf0735_0724ab4d2e63433396bc9905c227a5a8.pdf
    • https://static.usrfiles.com/ugd/37428b_abb134421b2c4195a9181277e895103d.pdf
    • https://static.usrfiles.com/ugd/516793_74d24d7dadf04a689236bf0d88fe1859.pdf
    • https://static.usrfiles.com/ugd/865d50_e66b4bcf48d74187a2e3297acad855fd.pdf
    • https://static.usrfiles.com/ugd/15ebe2_5f55ae0cfb3546a6901a7e03d916c7fb.pdf
    • https://static.usrfiles.com/ugd/c1de29_d35ea8c848f4409591c2dcf13e5d1434.pdf
    • https://static.usrfiles.com/ugd/0c41e7_801df8255b9646508e15804ca9715fbe.pdf
    • https://static.usrfiles.com/ugd/9e14ca_4fda576d71044a74a922d69d98255d0d.pdf
    • https://static.usrfiles.com/ugd/145364_190792d5e66b4d30bb9eb14ed5ecd9b3.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_off000090db.bin
de3f89b1241980940eab045068a371e26a15a61da0b3f30fb2490e13e7c01178		 pdf-font-stream PDF embedded font (sfnt) at offset 0x90DB 5308 bytes
font_01_sfnt_off0000a2ea.bin
5892f6e247132eea881d6d6050aa2175f602e89b94e412cdb89cb1524008ea10		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2EA 10176 bytes

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