PDF malware analysis — malicious · 31014eab060cd31b

MALICIOUS

PDF

45.2 KB Created: 2020-09-01 03:59:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a60d744fe175669855b4b8b569c1a5b8 SHA-1: e01c01bd0b1aa58114910d559fbcb51c96a00eff SHA-256: 31014eab060cd31bd887f54967a25138839d803ba2d2b8fd81c88f019145b23f

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. Additionally, it features a large number of embedded external PDF links, suggesting a link farm or redirection tactic. The primary malicious IOC is the redirector URL, which likely serves as a gateway to further malicious content.

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=c+s+lewis+miracles+pdf
- https://static.usrfiles.com/ugd/b8c837_78b162e72da3437086b193559b6a6bf9.pdf
- https://static.usrfiles.com/ugd/516793_df1042ff742f4de29a7bc4013b8eb624.pdf
- https://static.usrfiles.com/ugd/b8c837_170c03d1a7c44d7d85f26e262d8a86b0.pdf
- https://static.usrfiles.com/ugd/b8c837_6f15608759e54404a0a0ecd47c394b6b.pdf
- https://static.usrfiles.com/ugd/69695d_9a3e1b14fdf7467aa730cb102f9b3dda.pdf
- https://static.usrfiles.com/ugd/80bfa9_94513a5865d749848afdff6bd69834cf.pdf
- https://static.usrfiles.com/ugd/05900a_c6934f7aaee64858850837957ecc2189.pdf
- https://static.usrfiles.com/ugd/b8c837_d2cebcae217b434ea6de0aeef9b1e0b3.pdf
- https://static.usrfiles.com/ugd/e5a943_bdca81e81fc24fc0bf5201ad8eec87f4.pdf
- https://static.usrfiles.com/ugd/b8c837_de39db9160a14e5b852ed7e15ec69196.pdf
- https://static.usrfiles.com/ugd/81d6a4_b988c459a2fb4821bfaa31107223efc0.pdf
- https://static.usrfiles.com/ugd/74e9cf_5de081ff6cd94c82b16a3487827d13cf.pdf
- https://cdn.shopify.com/s/files/1/0428/8148/2919/files/nazexagozuwoji.pdf
- https://cdn.shopify.com/s/files/1/0432/6142/7867/files/petuzivanogijewazunuvole.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_off000066b5.bin` `36b322baff09a0298a81f4bc14d99f3643413fa1c8040a297f3ab37b17434639`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66B5	4908 bytes
`font_01_sfnt_off0000776e.bin` `ff4a4596f9fcd6acda0ca517e29c7e8e69a541c99c03d1a3616ec6784f40ea1b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x776E	10076 bytes
`font_02_sfnt_off000099ef.bin` `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x99EF	4324 bytes

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