PDF malware analysis — malicious · cbb8eda913fc66af

MALICIOUS

PDF

80.8 KB Created: 2020-09-08 09:11:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5442d90b3ba41364e055c751f7d417bb SHA-1: de11fd6795da4c6361d759a0507e28600a779bf4 SHA-256: cbb8eda913fc66af8c085112a4e99633cdc097b9ca0e2a921f4184ed816f69f3

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with at least one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the primary attack pattern is to lure users into clicking malicious links, likely for phishing or to download further malware. The presence of a link farm further supports this, aiming to obscure the final malicious destination.

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.me/wix?keyword=azur+lane+formidable+wallpaper
- https://static.usrfiles.com/ugd/e8506d_a8156e754f4f4b1687e38554a5d06649.pdf
- https://static.usrfiles.com/ugd/8b4172_a376773521bb4134a1404ed3835ff414.pdf
- https://static.usrfiles.com/ugd/bb3bf9_bcbdbabece0a45e792bc09c42d9354d5.pdf
- https://static.usrfiles.com/ugd/1715bf_0a3876be00384093a8dcc78522b5799e.pdf
- https://static.usrfiles.com/ugd/d5cf39_c13eca50134746a89707eeb08471df87.pdf
- https://static.usrfiles.com/ugd/3d0627_e783e353592142e08f609de4e655f958.pdf
- https://cdn.shopify.com/s/files/1/0439/0033/8331/files/balefewixusovu.pdf
- https://cdn.shopify.com/s/files/1/0437/9197/4557/files/wallpaper_girl_love.pdf
- https://static.usrfiles.com/ugd/b8c837_309a309bfe6143808f7624433e6b85f0.pdf
- https://static.usrfiles.com/ugd/9421c8_4064ccb6f82d4169a4c1f55a65008a69.pdf
- https://static.usrfiles.com/ugd/f65175_b1a251e7e1e64983b4bbe4432783eb8d.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 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d425.bin` `21e87bb50f9092e2484af92d4f235c7f3e8394d613e91fa7d0ed6a9a634a65aa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD425	5084 bytes
`font_01_sfnt_off0000e558.bin` `daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE558	1800 bytes
`font_02_sfnt_off0000ede6.bin` `ee71b9104bb2b75f8e3a5a21ff70ef14060bfbc99762407b99005d322764b08b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEDE6	10280 bytes
`font_03_sfnt_off0001113f.bin` `5c37151e58b57006fec45205b953024960161fc126972448518f450544b1ac12`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1113F	16660 bytes
`font_04_sfnt_off00012772.bin` `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12772	4324 bytes

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