PDF malware analysis — malicious · 55f00e6417145685

MALICIOUS

PDF

128.8 KB Created: 2020-07-30 12:33:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 9e085c1a6cb66f2eadc30388eaf0a80f SHA-1: addc1b1f80bd76e309ef76bd30ca7ac3565195bd SHA-256: 55f00e64171456859f09a127c628dc64004f2a11fc90159b947efb931ba4fe85

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a redirector, which is part of a link farm designed to attract users searching for specific content like 'jaypee physiology book pdf download'. The heuristic firings indicate the PDF is a malicious redirector and part of a link farm, strongly suggesting a phishing or malware distribution attempt. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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.ru/pify?keyword=jaypee+physiology+book+pdf+download
- http://files.bowieknifestudios.com/uploads/1/3/1/4/131453045/53632666943.pdf
- http://files.johnmcsweeneyphotography.com/uploads/1/3/1/6/131606135/7322052.pdf
- http://files.eyeslikemineinc.org/uploads/1/3/0/9/130969889/xawanaladafav.pdf
- http://files.northwoodshaman.com/uploads/1/3/1/4/131453086/8558f04.pdf
- https://cdn.shopify.com/s/files/1/0434/6596/5718/files/84502080228.pdf
- https://cdn.shopify.com/s/files/1/0432/2469/4939/files/97216324016.pdf
- https://cdn.shopify.com/s/files/1/0429/7906/6009/files/98099414989.pdf
- https://cdn.shopify.com/s/files/1/0433/0595/9574/files/bogopamupadi.pdf
- https://cdn.shopify.com/s/files/1/0437/5996/0218/files/67042989611.pdf
- https://cdn.shopify.com/s/files/1/0429/5373/6351/files/9122465792.pdf
- https://cdn.shopify.com/s/files/1/0432/5838/0446/files/gedutovefajapofak.pdf
- https://cdn.shopify.com/s/files/1/0438/2903/5158/files/70487097562.pdf
- https://cdn.shopify.com/s/files/1/0431/2000/1178/files/35605350776.pdf
- https://cdn.shopify.com/s/files/1/0441/3197/5320/files/3447130089.pdf
- https://cdn.shopify.com/s/files/1/0432/8597/1110/files/diwegowu.pdf
- https://cdn.shopify.com/s/files/1/0437/3417/1813/files/80072104161.pdf
- https://cdn.shopify.com/s/files/1/0431/8714/2819/files/96028227845.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_off0001b2b1.bin` `6b400e46216f5fa443ec81d784c062a0395deb199762acf7ea197768bbcc2e6e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1B2B1	5300 bytes
`font_01_sfnt_off0001c4b4.bin` `77504f6ef7cfdd1274ccffe8240f5fc9a8cd456e5c2c9c7d0ee3d83ba1fc7321`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1C4B4	2080 bytes
`font_02_sfnt_off0001cdb5.bin` `191bb326f7cb296b269f004285281e87bde4d9d85d24089ebd46ddfaf9c645eb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1CDB5	12060 bytes

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