PDF malware analysis — malicious · c5fa7311e89548cc

MALICIOUS

PDF

41.4 KB Created: 2020-08-31 10:57:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a68491b0a54cb329edb09a00d1efde9a SHA-1: 4815282956a1a5313f82b34133f568590cb2bbf7 SHA-256: c5fa7311e89548ccfa1576370b764168e73351d645ce6d98667ded2b188aa4d3

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a prominent link to 'ttraff.com' which is flagged as a malicious redirector. The document body, though partially corrupted, contains text referencing 'Adobe flash 8 free download for wind', suggesting a social engineering lure. The presence of numerous external links, including one to a Shopify domain, indicates a link farm designed to attract traffic, likely leading to malware distribution.

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.com/wix?keyword=adobe+flash+8+free+download+for+wind
- https://cdn.shopify.com/s/files/1/0434/8733/0464/files/82507316385.pdf
- https://cdn.shopify.com/s/files/1/0437/2883/0632/files/google_adwords_fundamentals_exam_questions_and_answers.pdf
- https://cdn.shopify.com/s/files/1/0430/6727/7469/files/25647569999.pdf
- https://cdn.shopify.com/s/files/1/0435/9897/1038/files/74156064234.pdf
- https://static.usrfiles.com/ugd/0bcf16_e5b03cef94f941bfada1d091a83a116d.pdf
- https://static.usrfiles.com/ugd/b8c837_d43729fe8a844fb998c967e8a585d748.pdf
- https://static.usrfiles.com/ugd/c20ea7_f95eea7407ce46b0b9c39362fb01c310.pdf
- https://cdn.shopify.com/s/files/1/0465/5493/9542/files/gorazezedelixeworilefino.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72518400380.pdf
- https://cdn.shopify.com/s/files/1/0429/5357/2515/files/93951874471.pdf
- https://cdn.shopify.com/s/files/1/0431/2681/6932/files/96924929036.pdf
- https://cdn.shopify.com/s/files/1/0439/7016/6942/files/wozuzajepike.pdf
- https://static.usrfiles.com/ugd/0d2908_670bc17ec14d449ca6b54db9856f29b5.pdf
- https://static.usrfiles.com/ugd/b8c837_b82d6f5d1dbb47118c68a5ff1168ab42.pdf
- https://static.usrfiles.com/ugd/4b874d_5ed23be7b85c49afbb323294e062abce.pdf
- https://static.usrfiles.com/ugd/b8c837_31fc0fcb3b1d465e91de6cf2b2052538.pdf
- https://static.usrfiles.com/ugd/45fd81_4ad59775bacd41d9bf07ec1f805e923f.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.

Filename	Kind	Source	Size
`font_00_sfnt_off000063a3.bin` `46c669c57811fa7ac36cd500b67aa4329d207858bb793a652421328fa42e2966`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63A3	5412 bytes
`font_01_sfnt_off0000760e.bin` `b387f107a870057911e6d1ab3fb10ca525cc7aa8c0572696fd33230e9654ea82`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x760E	10096 bytes

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