PDF malware analysis — malicious · fa847b0918c261ae

MALICIOUS

PDF

41.9 KB Created: 2020-09-07 10:04:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 03b83b6b0596cbe2d7eeaecf2ccc7b1a SHA-1: 0fc9984f439393335ff25a61604bebac737dcd21 SHA-256: fa847b0918c261ae55effab33d8d5a9fd680fcf4ee324fd6b4550243c71a109f

150 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains numerous embedded links, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure for free album downloads, which is a common social engineering tactic. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating an attempt 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.ru/wix?keyword=evanescence+all+albums+free
- https://cdn.shopify.com/s/files/1/0459/6708/1639/files/10083684649.pdf
- https://cdn.shopify.com/s/files/1/0429/2860/3295/files/dudetogivetojejuxo.pdf
- https://cdn.shopify.com/s/files/1/0429/9984/0921/files/87845673434.pdf
- https://cdn.shopify.com/s/files/1/0468/9982/2752/files/unsung_tv_show_episode_guide.pdf
- https://static.usrfiles.com/ugd/96bf9d_4d19202c3eae4b039f7e80ab6926c95b.pdf
- https://static.usrfiles.com/ugd/b11f6d_a02e777a0e594ff2baf41917ac1d208d.pdf
- https://static.usrfiles.com/ugd/9b7d8a_4b4ebcdc70ab4975abd66453baa3b3c1.pdf
- https://static.usrfiles.com/ugd/1f5cef_574320c4362c4837b4da3d5c153f9c44.pdf
- https://static.usrfiles.com/ugd/b80405_d8e01f8159d843baaac42a55937874b9.pdf
- https://static.usrfiles.com/ugd/191a6d_c07e80deece2421b8c9b96d457319123.pdf
- https://static.usrfiles.com/ugd/8a05ec_2dc2b6540aa14cbcbbae8d731e874583.pdf
- https://static.usrfiles.com/ugd/d2751c_cb6352f8396a4b00bf6d522e2991ee64.pdf
- https://static.usrfiles.com/ugd/22739b_f3ee010af048401b9445d04c5ddfd995.pdf
- https://static.usrfiles.com/ugd/74c34a_e60c56a6d7964ee19849dee9dfcbe8d2.pdf
- https://static.usrfiles.com/ugd/b41a9a_04ab0e9a7a4a460c83697a73a47ee042.pdf
- https://static.usrfiles.com/ugd/b8c837_bfa3c3610ba742a2be88244e439d246f.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/
- https://static.usrfiles.com/ugd/b11f6d_a02e777a0e594ff2

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000065f9.bin` `1ce608bfe830afac80d42dff8a07d6287da26d347d4b09ef0c100e28bb6a0e13`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65F9	5184 bytes
`font_01_sfnt_off00007791.bin` `fea4994621b4ac0f056c5548347aedd9a2242baac523c9d1e417faac9f09777e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7791	10736 bytes

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