Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5d8ec1bcb83540f…

MALICIOUS

PDF

41.6 KB Created: 2020-08-30 09:46:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 554a6a86355c60d91d89c58603448ebd SHA-1: d54ab330674e6e77ff86a0c110286abd3849986c SHA-256: a5d8ec1bcb83540f1db560b1df8eb75b3237d8a72565af0b9ef9e4a8d21fcb8b
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a link farm and a direct link to a known malicious redirector, indicating a lure to a malicious site. The document body, though obfuscated, contains the URL 'https://ttraff.cc/wix?keyword=capm+exam+prep+book+rita+mulcahy', which is a critical IOC. The presence of multiple PDF links suggests an attempt to manipulate search engine results or distribute further malicious content. 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.cc/wix?keyword=capm+exam+prep+book+rita+mulcahy
    • https://static.usrfiles.com/ugd/73c254_2efcef68669a4ee09bd35b711de3e0d8.pdf
    • https://static.usrfiles.com/ugd/e745be_fee8925ecf1e4701b10481c96fee8e64.pdf
    • https://static.usrfiles.com/ugd/89064d_67da4a7234d845baa91945909eff87fe.pdf
    • https://static.usrfiles.com/ugd/26481d_1bc0238ef60248b2a47afac1ea66588f.pdf
    • https://static.usrfiles.com/ugd/e02969_2e09191468754cf3909960700bd471b4.pdf
    • https://static.usrfiles.com/ugd/80c1db_4d70f6c4c481406e81f321a03d759852.pdf
    • https://static.usrfiles.com/ugd/b8c837_e932bb83e56f44c2acd3c97be955dd67.pdf
    • https://cdn.shopify.com/s/files/1/0434/7917/1222/files/55175155096.pdf
    • https://cdn.shopify.com/s/files/1/0427/7328/2983/files/88364559808.pdf
    • https://static.usrfiles.com/ugd/b8c837_ab6f624208d14055b47fa3dfeb5fb1d9.pdf
    • https://static.usrfiles.com/ugd/de65f7_26fd95a5320d4a9fb9c7eeb7ea994176.pdf
    • https://static.usrfiles.com/ugd/bfbc46_6b295606be664c5393e751d834858233.pdf
    • https://static.usrfiles.com/ugd/b8c837_e838882be0ab40c292780d249fde3e81.pdf
    • https://static.usrfiles.com/ugd/4bdc6d_3c8147eaa51142db9611d6d8957420e7.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_off00005fa4.bin
6258bd8a98db86bc964d9865c87ffda4d7573bc4a5bef03b61a617e6df32aaaf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA4 5276 bytes
font_01_sfnt_off0000717d.bin
587b7b0a6c44b88ab76b6e55022646cd4ed97ccde4c60d7c9b9bae48edca41a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x717D 12300 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.