PDF malware analysis — malicious · 587b984c2eecb4f8

MALICIOUS

PDF

51.2 KB Created: 2020-08-03 11:12:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c422175150cc27a0107c71e82e8de86f SHA-1: d2999ab52a58d400617d4a1e8643de5c9b3de194 SHA-256: 587b984c2eecb4f86226d702b7b106efc4734e3c51616faa86a67a27f176959c

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a primary link to 'ttraff.com' identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Kenmore sewing machine manual' and the URL 'https://ttraff.com/pify?keyword=kenmore+sewing+machine+model+385+manual+pdf', suggesting a lure to disguise malicious redirection. The ML classifier strongly supports the malicious verdict.

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=kenmore+sewing+machine+model+385+manual+pdf
- http://files.danavallarino.com/uploads/1/3/1/0/131070459/rapevodureko_jukaxafam_rukixu.pdf
- http://files.danversfreshmarketplace.com/uploads/1/3/1/1/131164382/70546.pdf
- http://files.diggersite.com/uploads/1/3/0/9/130969154/xovazukemepobudiro.pdf
- http://files.iabsconvention.com/uploads/1/3/1/4/131437657/rujanope.pdf
- http://files.ellijayhideaway.com/uploads/1/3/0/7/130776366/093b245a4966a10.pdf
- https://cdn.shopify.com/s/files/1/0437/7280/5277/files/41886924550.pdf
- https://cdn.shopify.com/s/files/1/0428/5438/3782/files/34850305171.pdf
- https://cdn.shopify.com/s/files/1/0433/7913/0524/files/wuvij.pdf
- https://cdn.shopify.com/s/files/1/0430/0305/2191/files/5e_ranged_attacks.pdf
- https://cdn.shopify.com/s/files/1/0430/7392/9377/files/66733384820.pdf
- https://cdn.shopify.com/s/files/1/0429/6255/0940/files/35177887452.pdf
- https://cdn.shopify.com/s/files/1/0438/4607/4525/files/noneparexewonazugalejuja.pdf
- https://cdn.shopify.com/s/files/1/0430/6288/6554/files/zejafeviripasijukudip.pdf
- https://cdn.shopify.com/s/files/1/0433/0763/0747/files/kenshi_lantern_of_radiance.pdf
- https://cdn.shopify.com/s/files/1/0440/6640/6550/files/91131483872.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_off00007b08.bin` `bb87f2ae7a5b8e1d0b5d095c38a37a1c1a489c70e867799aea7c44a0fe9c889c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B08	5912 bytes
`font_01_sfnt_off00008f06.bin` `3e3f7993282f106fa0d874566e6244444f8ddd9f06d14d6f92634047340ffa86`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F06	10104 bytes
`font_02_sfnt_off0000b190.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB190	4324 bytes

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