PDF malware analysis — malicious · 32fe8c49c38a4df7

MALICIOUS

PDF

56.7 KB Created: 2020-08-19 16:40:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b3be36b9974997fba3ad744d3e8458ae SHA-1: 034cc9cdf54e9fc3e6877d859e0288eacc6f1ad7 SHA-256: 32fe8c49c38a4df7b421ed29a59923c9db5b470c92b6f06112c58caa3f1cfc16

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a malicious redirector link disguised as a marriage biodata format, aiming to trick users into clicking it. The link leads to 'ttraff.cc', which is flagged as malicious. The document also exhibits characteristics of a PDF link farm, with numerous external links, many pointing to Shopify domains. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=free++marriage+biodata+format+in+word
- http://files.tacalliancedistributors.com/uploads/1/3/0/7/130739419/levorodonij.pdf
- http://rimejurug.adamsmetaldetectorsuk.com/uploads/1/3/1/4/131410299/7966537.pdf
- http://tomajeno.fluidartcreative.com/uploads/1/3/1/3/131382486/d62ca098add458.pdf
- https://cdn.shopify.com/s/files/1/0428/9386/9223/files/solid_principles_php.pdf
- https://cdn.shopify.com/s/files/1/0432/7879/4917/files/17746089517.pdf
- https://cdn.shopify.com/s/files/1/0429/3620/5479/files/python_for_line_in_file.pdf
- https://cdn.shopify.com/s/files/1/0430/9755/5093/files/rakapuvivufadanuwe.pdf
- https://cdn.shopify.com/s/files/1/0430/9496/6436/files/xemati.pdf
- https://cdn.shopify.com/s/files/1/0438/6557/1493/files/juvisirukewewusodoradarel.pdf
- https://cdn.shopify.com/s/files/1/0438/3778/4229/files/tonight_west_side_story_piano.pdf
- https://cdn.shopify.com/s/files/1/0440/6312/9765/files/kaguvidotajofi.pdf
- https://cdn.shopify.com/s/files/1/0436/5362/8062/files/super_in_python.pdf
- https://cdn.shopify.com/s/files/1/0430/7179/9449/files/functional_dependency_and_normalization_in_dbms.pdf
- https://cdn.shopify.com/s/files/1/0433/8286/6072/files/kusepavixuxuguseda.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00008c6c.bin` `b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C6C	2828 bytes
`font_01_sfnt_off00009667.bin` `842813c9de613bbdde0bad2117c8324e82db1eae970cc53c7ebf2b69d3626ff1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9667	5204 bytes
`font_02_sfnt_off0000a812.bin` `335ec1aa0468b5b1b58246f1c8c4ec37ae01107ece969b74c8fc0527f5cb7333`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA812	9964 bytes
`font_03_sfnt_off0000ca5b.bin` `d1b8d16e499d6beee4fed70bc7cbc7663764b2357bf361163dfef7bfbe62532f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCA5B	2628 bytes

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