PDF malware analysis — malicious · f3aa5cb4c31a087b

MALICIOUS

PDF

45.7 KB Created: 2020-08-21 20:38:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c060842fffc40c2c291500c8137c03d3 SHA-1: 330cc36b6276c8eb8a04478d7576219eb89eb0a6 SHA-256: f3aa5cb4c31a087b415e001d2ef07b661dc8bef5e794350fce29d86922ebb9e8

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, contains a reference to the same redirector URL. This suggests the document's primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution.

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/pify?keyword=california+notary+acknowledgement+form+word
- http://files.lydiafellowshipinternational.org/uploads/1/3/1/1/131164310/1fec66a865c.pdf
- http://files.refugeeradionetwork.net/uploads/1/3/1/8/131856188/vurajipedifasufukix.pdf
- http://vakonow.doublejoutfittersny.com/uploads/1/3/1/6/131606271/2717341.pdf
- http://visikap.cysff.net/uploads/1/3/0/7/130740112/befewokebigavuk.pdf
- http://files.invisageblinds.com/uploads/1/3/1/3/131381722/zedevusaf-nogerogut-tosakofazojoxid-jaxomilibibus.pdf
- http://files.invisageblinds.com/upload
- https://cdn.shopify.com/s/files/1/0437/9354/7426/files/company_profile_template_photoshop_free.pdf
- https://cdn.shopify.com/s/files/1/0430/9159/1321/files/la_catedral_agustin_barrios_sheet_music.pdf
- https://cdn.shopify.com/s/files/1/0435/0168/2843/files/usana_cellsentials.pdf
- https://cdn.shopify.com/s/files/1/0431/1662/6081/files/gukubepixuxesomisena.pdf
- https://cdn.shopify.com/s/files/1/0430/9545/7946/files/logic_buried_alive.pdf
- https://cdn.shopify.com/s/files/1/0435/8832/1437/files/46328540641.pdf
- https://cdn.shopify.com/s/files/1/0427/4218/6150/files/62562816171.pdf
- https://cdn.shopify.com/s/files/1/0433/4714/8950/files/41389468888.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdf
- https://cdn.shopify.com/s/files/1/0428/8544/7833/files/27823774553.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_off0000656c.bin` `94aff03612e186518a54ca4ae290482884adead876e6a5364bbd297fded6a8c0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x656C	5232 bytes
`font_01_sfnt_off0000773b.bin` `df8b8a19535056c913ffacb5315f50e824128cfafcbc731da0a55caf2dc9cec8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x773B	10476 bytes
`font_02_sfnt_off00009af0.bin` `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9AF0	4324 bytes

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