PDF malware analysis — malicious · b043cb95f16430f9

MALICIOUS

PDF

41.4 KB Created: 2020-08-31 00:54:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b7d5d762ace0d5c5b0f1fef6c37a0dc3 SHA-1: 21f4b7edc953bba751963f26ac1f01f07c418b28 SHA-256: b043cb95f16430f9e9061f69b371527dfc46b2c5cfeddbdd98fe45f88c5c6f64

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=el+gato+micifuz+cuento%253D'. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded external links. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the malicious URL, suggesting a lure to a malicious site.

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.com/wix?keyword=el+gato+micifuz+cuento%253D
- https://static.usrfiles.com/ugd/455f95_a3e8e7de63184e69a2aef1802a64e513.pdf
- https://static.usrfiles.com/ugd/1e4819_9ce1eb13a54445139b80adb6804cdd01.pdf
- https://static.usrfiles.com/ugd/b8c837_5b0552f6909d4ddd9549ca0bf470489b.pdf
- https://cdn.shopify.com/s/files/1/0437/2607/8101/files/93078446110.pdf
- https://cdn.shopify.com/s/files/1/0428/5195/8947/files/set_up_icloud_email_address_on_android.pdf
- https://cdn.shopify.com/s/files/1/0432/8721/6293/files/matilda_google_docs.pdf
- https://cdn.shopify.com/s/files/1/0438/3699/7794/files/muzowitafisularoruvobet.pdf
- https://static.usrfiles.com/ugd/764aaa_66e9a41bb7cc425e81fff042ba25c779.pdf
- https://static.usrfiles.com/ugd/b8c837_f638475c55ef479c915449acb3f40f13.pdf
- https://static.usrfiles.com/ugd/d902bb_b92958f00a1440b1a3bb698e26d03333.pdf
- https://static.usrfiles.com/ugd/ca300b_0b9fdd1f02fc4822ba5245dae96da776.pdf
- https://static.usrfiles.com/ugd/0adedf_343ba86af18f42329044267e715804b7.pdf
- https://static.usrfiles.com/ugd/d54300_9e280344823c45e9bbac4aebbdd57acc.pdf
- https://static.usrfiles.com/ugd/b3bc21_613ecb3cd1524af1a1b6cd69bd4554d9.pdf
- https://static.usrfiles.com/ugd/b8c837_35396f3a25dc4e48b77620c942a71c0f.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_off00005436.bin` `a680ca83ee9405f32d0ec0f53f6b1d90b24841a1a522a48ca0745535e5899c46`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5436	4860 bytes
`font_01_sfnt_off000064c3.bin` `744d166d3ed8516fc4f0ef5747e171322a345429eb2e8480ab4396023fd5b650`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64C3	11392 bytes
`font_02_sfnt_off0000890d.bin` `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x890D	4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.