PDF malware analysis — malicious · 50f1c6d4810182af

MALICIOUS

PDF

49.1 KB Created: 2020-09-04 22:58:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 020fb14e4ef085850f73e297baa78af6 SHA-1: 9ab09d6f8247cd01a56b601998df799e8aeda168 SHA-256: 50f1c6d4810182af112c3865a3388528aac1ed7e1601da6d132a73340ae04d09

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.link/pify?keyword=papercraft+sd+gundam+template', which is flagged as malicious. The presence of a link farm and the ML classifier's high confidence score further support the malicious nature of this PDF, indicating it's designed to lead users to harmful 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.link/pify?keyword=papercraft+sd+gundam+template
- https://static.usrfiles.com/ugd/b8c837_273db06355834ebeb9bc3451295e22a3.pdf
- https://static.usrfiles.com/ugd/7d1dc9_5c04d452f6d44a47b020deef8a0f07c2.pdf
- https://static.usrfiles.com/ugd/d1c05f_aa4e6766cb224e1bb2259f8d06bdc8f1.pdf
- https://static.usrfiles.com/ugd/b8c837_c05975b7ef7d48009a5b7e423293b265.pdf
- https://static.usrfiles.com/ugd/ed2d23_ee949a90c2d744f3b50b645481c511da.pdf
- https://cdn.shopify.com/s/files/1/0440/0054/2878/files/56699345668.pdf
- https://cdn.shopify.com/s/files/1/0434/8307/0629/files/78544378355.pdf
- https://cdn.shopify.com/s/files/1/0446/1549/9939/files/dalagirugubanerexa.pdf
- https://static.usrfiles.com/ugd/8bc2a6_20a77a1815ea4996bddaad7592c8e275.pdf
- https://static.usrfiles.com/ugd/b8c837_44c12939e27449dca1e76783b80fd58e.pdf
- https://static.usrfiles.com/ugd/31593d_91872091e81b4b9e89896e077af79d0f.pdf
- https://static.usrfiles.com/ugd/12daa7_fe5b1eb801cd4052bb8263e5e88e15c9.pdf
- https://static.usrfiles.com/ugd/a298ce_412760fad3ad4db99e8e3bee03dd6f19.pdf
- https://static.usrfiles.com/ugd/8e1900_d1f5cc0ac0c040e3bf3d580154d0ae29.pdf
- https://static.usrfiles.com/ugd/30e015_f50af6b6972740a5a2f28b7100a0ac69.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_off00006dd3.bin` `942ff565ac0bd94aba27d61fbada981c4635dbcefcb142b975e6e3305b98eca9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6DD3	5476 bytes
`font_01_sfnt_off00008059.bin` `e60eeafc5d0082bc25d9d8c0d93ad8d91ea00c38875f95346dd1996252d39050`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8059	2956 bytes
`font_02_sfnt_off00008ca0.bin` `b808b0368711442717906e25b976686b4827dc0e26f8292f75607bafdcd57716`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CA0	13356 bytes

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