PDF malware analysis — malicious · 7f9d8b23b31f4bea

MALICIOUS

PDF

44.5 KB Created: 2020-07-31 20:01:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8e37a8557428488a0d3016c530688da6 SHA-1: a6e168bed0b47dcf14334627ea2ca67ca99372b6 SHA-256: 7f9d8b23b31f4bea9f784f54ace230656ec3a793bd22903f3caafcc01c09e8e9

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a mass external link farm, with a critical heuristic firing for a malicious redirector link. The primary malicious URL identified is https://ttraff.com/pify?keyword=el+paso+county+sheriff+blotter, which is likely used to redirect users to a phishing or malware distribution site. The document body text is heavily obfuscated and appears to contain remnants of the URL, further supporting the malicious intent.

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/pify?keyword=el+paso+county+sheriff+blotter
- http://files.mrstutsmathclass.com/uploads/1/3/0/9/130968920/fogaro-bubejugu.pdf
- http://files.endpointtech.com/uploads/1/3/1/6/131606803/17ce4fd1fcb15.pdf
- http://files.chillicothefcg.org/uploads/1/3/1/4/131437005/1593706.pdf
- http://files.wayoflifewc.org/uploads/1/3/1/1/131163851/kojomibibakopop-pubol.pdf
- https://cdn.shopify.com/s/files/1/0431/9969/2958/files/39185126489.pdf
- https://cdn.shopify.com/s/files/1/0433/8706/0375/files/35807816553.pdf
- https://cdn.shopify.com/s/files/1/0431/6119/0554/files/43710481236.pdf
- https://cdn.shopify.com/s/files/1/0428/6801/5260/files/romidotavopisu.pdf
- https://cdn.shopify.com/s/files/1/0429/1470/9663/files/63818605640.pdf
- https://cdn.shopify.com/s/files/1/0431/6761/3087/files/zuvetibezas.pdf
- https://cdn.shopify.com/s/files/1/0435/6079/6318/files/34192375918.pdf
- https://cdn.shopify.com/s/files/1/0438/4204/4066/files/sifurufolesaxifarok.pdf
- https://cdn.shopify.com/s/files/1/0429/9276/3039/files/35560647195.pdf
- https://cdn.shopify.com/s/files/1/0431/7744/3483/files/vapadigavazijedaposow.pdf
- https://cdn.shopify.com/s/files/1/0440/5955/8053/files/49332148199.pdf
- https://cdn.shopify.com/s/files/1/0437/2607/8101/files/57340591985.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.

Filename	Kind	Source	Size
`font_00_sfnt_off000061db.bin` `9e8f7e09149be514ff57e7f8a3c13d60032e7935d79ece8a1ab313aaf2c586b4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61DB	5184 bytes
`font_01_sfnt_off00007374.bin` `19265ca5b4b5b5d6e834635367ae6325f30001e4605cce5e032a2fbf51414bd7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7374	10512 bytes
`font_02_sfnt_off00009733.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9733	4324 bytes

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