PDF malware analysis — malicious · 8ec04bb9b585eba7

MALICIOUS

PDF

71.8 KB Created: 2020-08-13 18:46:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4495cfdc1cb4c600d4c020418663afa0 SHA-1: fe1ed644a782575ea7ef363c87abe2c577bce8c1 SHA-256: 8ec04bb9b585eba7ab99d12a0d00216194bd9d3c23ab04b2376a0b45024eba22

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF document contains numerous links, many of which point to a link farm designed to manipulate search engine results. One prominent link, 'https://ttraff.ru/wb?keyword=circular%20motion%20notes%20pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, suggesting the primary intent is to redirect the user to malicious infrastructure via a lure of academic content.

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/wb?keyword=circular%20motion%20notes%20pdf
- http://files.trinityreese.com/uploads/1/3/1/4/131406269/f87ed.pdf
- http://files.txlpcsupervision.com/uploads/1/3/1/3/131384679/pejoloxomarum.pdf
- http://lavifakip.thepaintedpalm.com/uploads/1/3/1/4/131454012/lunowusoz-binuxu-mivepapisifedag-biwurob.pdf
- https://cdn.shopify.com/s/files/1/0430/8733/1481/files/liberalisme_dalam_hubungan_internasional.pdf
- https://cdn.shopify.com/s/files/1/0438/9902/7611/files/advanced_level_english_book.pdf
- https://cdn.shopify.com/s/files/1/0435/1629/7368/files/29164160464.pdf
- https://cdn.shopify.com/s/files/1/0427/7328/2983/files/pojitedaligebuvu.pdf
- https://cdn.shopify.com/s/files/1/0431/6889/1040/files/6426223100.pdf
- https://cdn.shopify.com/s/files/1/0433/1791/9912/files/57135982020.pdf
- https://cdn.shopify.com/s/files/1/0432/1814/1347/files/nezagejatubabi.pdf
- https://cdn.shopify.com/s/files/1/0433/6254/9910/files/kulesinazimivalo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1402562920.pdf
- https://cdn.shopify.com/s/files/1/0433/1077/6478/files/botw_title_key.pdf
- https://cdn.shopify.com/s/files/1/0439/1557/5464/files/80678770592.pdf
- https://cdn.shopify.com/s/files/1/0437/9761/0657/files/zabix.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_off0000c120.bin` `383319bd44700aa9ad24d42c61b307a88fac8acc6d96c727e902918d3ca3c82b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC120	5208 bytes
`font_01_sfnt_off0000d2b4.bin` `23e3a5f03de9dba28999b922b9a6a679dce6074b19b024e1d7c36b779031577f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD2B4	12324 bytes
`font_02_sfnt_off0000fd60.bin` `1396562ca3b520584892f4bd50ff39b0722e014cdbc1625119a677b71e1270af`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFD60	16064 bytes

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