PDF malware analysis — malicious · 2a1ef3c95739085c

MALICIOUS

PDF

44.4 KB Created: 2020-08-05 12:07:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b691916fc67986f52aac347dd1d51a87 SHA-1: 54b55f9e8b035a8f16e46e028efc5826797ee44e SHA-256: 2a1ef3c95739085c96e9bdd48c91871ce22ca31bc3a8987b29cc7bccb51130cd

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass of external links, including a redirector link to ttraff.cc, suggesting a link farm or phishing attempt. The document body, though heavily obfuscated, contains keywords related to 'Dreamweaver cs6 tutorial pdf' and references wkhtmltopdf, indicating a lure to disguise malicious links. The presence of numerous PDF links, many hosted on Shopify, points towards an SEO spam campaign aiming to drive traffic to malicious sites.

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=dreamweaver+cs6+tutorial+pdf
- http://files.fffurther.nl/uploads/1/3/1/3/131380063/3091189.pdf
- http://files.sallydurant.com/uploads/1/3/0/8/130813777/tuzewonu.pdf
- http://files.sweetmaplecafe.co/uploads/1/3/1/6/131607331/d51c9bd8d1086.pdf
- https://cdn.shopify.com/s/files/1/0429/9236/9823/files/12499790155.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72645751706.pdf
- https://cdn.shopify.com/s/files/1/0430/6203/4589/files/mumizebepolavik.pdf
- https://cdn.shopify.com/s/files/1/0428/4933/7507/files/dogowewagixulilibopoj.pdf
- https://cdn.shopify.com/s/files/1/0429/4259/5239/files/dizorot.pdf
- https://cdn.shopify.com/s/files/1/0433/2496/5019/files/9462119502.pdf
- https://cdn.shopify.com/s/files/1/0438/1615/7344/files/download_caballo_de_troya_1.pdf
- https://cdn.shopify.com/s/files/1/0436/2538/2051/files/zajalubivepakolefu.pdf
- https://cdn.shopify.com/s/files/1/0433/4790/2629/files/fevotujaruruluw.pdf
- https://cdn.shopify.com/s/files/1/0434/2549/7250/files/74905048767.pdf
- https://cdn.shopify.com/s/files/1/0434/3290/2806/files/46385725718.pdf
- https://cdn.shopify.com/s/files/1/0429/5612/8412/files/likifivuz.pdf
- https://cdn.shopify.com/s/files/1/0431/0971/2023/files/75005319344.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_off00004e6a.bin` `1e21ec2bbed87ed5bd6e9217ff59ac563a17cd7e5744bd74ca35d77d41e60e2f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4E6A	9656 bytes
`font_01_sfnt_off00006d38.bin` `37898b8d0ea350e23d56214337b4d2d07b29e2fd651543d05b9f2b03242f9e63`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D38	5608 bytes
`font_02_sfnt_off00008053.bin` `1eab1ed44a1060537f7d31aebb7c0da6b7fb1e4450883f37c2ab7a07f3c0710a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8053	9884 bytes

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