PDF malware analysis — malicious · e4ff43f3bd320789

MALICIOUS

PDF

74.4 KB Created: 2020-07-30 19:05:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8e6848effb7dc79548b195c5f72ec8cb SHA-1: 9581cca67273d4b6045138998ed37aaa1a2bdb2d SHA-256: e4ff43f3bd320789c823ee8b730f44410dd8e4768e7a907039489376f1a41877

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on cdn.shopify.com. The primary malicious URL identified is ttraff.cc, which likely serves as a gateway to further malicious content.

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.cc/pify?keyword=byomkesh+bakshi+story+pdf
- http://files.alluregreaterswiss.com/uploads/1/3/1/6/131606861/1869157.pdf
- http://files.coalitionforsafeschoolsnyc.org/uploads/1/3/1/3/131384429/rixika-vedesuze-fenuwa.pdf
- http://files.sinomedia.net/uploads/1/3/2/6/132682813/vowevulukadog.pdf
- https://cdn.shopify.com/s/files/1/0434/6917/6992/files/zobimotizeneponiwilib.pdf
- https://cdn.shopify.com/s/files/1/0433/2378/5370/files/dabuvusugogoxevudabebuji.pdf
- https://cdn.shopify.com/s/files/1/0428/2885/7503/files/6890229631.pdf
- https://cdn.shopify.com/s/files/1/0427/9074/8316/files/66491986354.pdf
- https://cdn.shopify.com/s/files/1/0429/3486/1987/files/gedexixovelabaletodakivi.pdf
- https://cdn.shopify.com/s/files/1/0430/8267/8433/files/34370419285.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86399573169.pdf
- https://cdn.shopify.com/s/files/1/0436/3167/3502/files/83813884984.pdf
- https://cdn.shopify.com/s/files/1/0429/5131/1513/files/12213011413.pdf
- https://cdn.shopify.com/s/files/1/0432/2865/9869/files/serokizikomusi.pdf
- https://cdn.shopify.com/s/files/1/0430/3680/3233/files/didetilaxupibakozukev.pdf
- https://cdn.shopify.com/s/files/1/0438/3283/6256/files/fekinanakobuleturu.pdf
- https://cdn.shopify.com/s/files/1/0431/0463/2998/files/27708912817.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/
- https://cdn.shopify.com/s/fil

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c6a5.bin` `366d566f80b737a6cc43742d81ddbc9ded4f6d1a137264d3a42d3225642270fc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC6A5	5288 bytes
`font_01_sfnt_off0000d8a6.bin` `ea237d4ac5c5b34489afa582deaace8ca3124d3a492f85e31a91bf8cb8f54f42`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD8A6	14924 bytes
`font_02_sfnt_off00010704.bin` `ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10704	16164 bytes

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