PDF malware analysis — malicious · 8ca9ea931d0f3171

MALICIOUS

PDF

72.1 KB Created: 2020-07-30 17:35:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5137bd032ac5761e93b9637ea7cdcd63 SHA-1: cd0d6c91384b9e83c38c39ea9ef180d0c4a41e28 SHA-256: 8ca9ea931d0f3171fc7e0979d16d93eaea4b3aecdeeff5ffc6ab0655f90b19e5

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with one heuristic identifying it as a PDF SEO link farm. The primary malicious link redirects to 'ttraff.ru', which is flagged as malicious infrastructure. The document body appears to be heavily obfuscated or corrupted, preventing a clear understanding of its intended content beyond the presence of links.

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=borg+breathlessness+scale+pdf
- http://files.nnhst2.org/uploads/1/3/1/3/131379612/lufuxofuwusuwufaposi.pdf
- http://files.renewfurnitureonline.com/uploads/1/3/0/7/130776324/a7aedcd9.pdf
- http://files.nenagholympic.com/uploads/1/3/2/6/132682076/wajub.pdf
- http://files.themanimalchronicles.com/uploads/1/3/1/3/131381540/0b890e668b.pdf
- http://files.hairandmakeupbylu.com/uploads/1/3/1/4/131453588/kirezijukogom.pdf
- https://cdn.shopify.com/s/files/1/0431/1167/8114/files/livigezixuxugu.pdf
- https://cdn.shopify.com/s/files/1/0431/5394/8836/files/gililewebalari.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72274594547.pdf
- https://cdn.shopify.com/s/files/1/0431/0931/8813/files/8726098090.pdf
- https://cdn.shopify.com/s/files/1/0431/5519/4011/files/22857188462.pdf
- https://cdn.shopify.com/s/files/1/0435/7675/4344/files/9216907788.pdf
- https://cdn.shopify.com/s/files/1/0427/9202/6271/files/40340267999.pdf
- https://cdn.shopify.com/s/files/1/0429/9656/4131/files/19100400882.pdf
- https://cdn.shopify.com/s/files/1/0431/8566/8255/files/57220386879.pdf
- https://cdn.shopify.com/s/files/1/0432/2482/6014/files/83137306708.pdf
- https://cdn.shopify.com/s/files/1/0437/6687/4269/files/xelemoxovisifamopofifuve.pdf
- https://cdn.shopify.com/s/files/1/0438/9899/4856/files/pebenejisuliguzeziwida.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_off0000b9d6.bin` `aa8552ca2ba3f138ca1494b46650be42f08e5802df94e3a51bfcce3f2b85f00d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB9D6	5348 bytes
`font_01_sfnt_off0000cbf6.bin` `0e7d78a6505189486caac478c2a449947bde0cd4c1fcb886aeca79e910730c31`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCBF6	16088 bytes
`font_02_sfnt_off0000fe06.bin` `0845746d8e0f76c2c57e53a5d0c2d2ba36ed31c4724e2802406f297ba1795667`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFE06	16132 bytes

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