PDF malware analysis — malicious · e2ab6abe919843a4

MALICIOUS

PDF

37.4 KB Created: 2020-08-08 11:18:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: aec89db9fb6c3e8a64d21587cad4e717 SHA-1: df61726009ec968f7237b505a8db7698fa20f651 SHA-256: e2ab6abe919843a46fb8ca5199ad201a41f7d35579445fbe347bc54acb0c936f

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to `ttraff.com`. This domain is flagged as a malicious redirector. The document body, though heavily obfuscated, contains the text 'Contemporary behavior therapy 5th edition pdf' and the malicious URL, suggesting a lure to download a book which instead leads to a malicious site.

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/pify?keyword=contemporary+behavior+therapy+5th+edition+pdf
- http://files.cbcwickenburg.org/uploads/1/3/0/7/130775276/firomewabakomug.pdf
- http://files.ashiharakaratesg.com/uploads/1/3/0/8/130874286/36f3362371a.pdf
- http://files.heartsower.com/uploads/1/3/1/3/131380397/vamide_xapopebawasetog_gukalefawenibu.pdf
- http://gumazane.lpprom.org/uploads/1/3/2/7/132740978/jasusorebaporavas.pdf
- https://cdn.shopify.com/s/files/1/0433/7103/6835/files/24314772646.pdf
- https://cdn.shopify.com/s/files/1/0431/7449/4369/files/bebosajiw.pdf
- https://cdn.shopify.com/s/files/1/0437/0622/0697/files/zulibixuxo.pdf
- https://cdn.shopify.com/s/files/1/0440/7692/5078/files/9974189967.pdf
- https://cdn.shopify.com/s/files/1/0434/7245/3797/files/60520336631.pdf
- https://cdn.shopify.com/s/files/1/0441/2915/7272/files/75023979606.pdf
- https://cdn.shopify.com/s/files/1/0444/3108/1639/files/white_rodgers_thermostat_battery.pdf
- https://cdn.shopify.com/s/files/1/0429/9590/8761/files/52673485616.pdf
- https://cdn.shopify.com/s/files/1/0434/4433/8838/files/6432958441.pdf
- https://cdn.shopify.com/s/files/1/0431/8894/5064/files/xafelatelexudaxejidapovom.pdf
- https://cdn.shopify.com/s/files/1/0429/4439/7468/files/pidanegewejugerikege.pdf
- https://cdn.shopify.com/s/files/1/0432/3786/7687/files/25581137509.pdf
- https://cdn.shopify.com/s/files/1/0428/9105/1161/files/matrix_dot_product.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_off00005444.bin` `f79427c8524f6383caefb025de4fda199186d111f86a9550fe64033709e423d5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5444	5404 bytes
`font_01_sfnt_off00006684.bin` `a01e2de266f6c2f3b9f1c2ebdb61186f09f6f30e4aa401f7ebe0878148fdefb0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6684	9916 bytes

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