PDF malware analysis — malicious · a110939252338912

MALICIOUS

PDF

39.0 KB Created: 2020-08-02 21:59:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 61dbebf448b07a3cb221c3253b4d8ebc SHA-1: c876f8469afce7b0009101f62275df115e338525 SHA-256: a11093925233891298c5a8a265c95572356597e471af669fe3e9941fdf70414b

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains the same redirector URL and a reference to 'github', suggesting a lure related to online content. The presence of many Shopify-hosted PDF links, some marked as benign and others unknown, indicates a broad distribution strategy.

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=how+to+get+anime+on+vyond+github
- http://files.rachelmariephotography.net/uploads/1/3/1/4/131438069/844036.pdf
- http://files.nadinina.com/uploads/1/3/1/3/131379740/masuwatur.pdf
- http://files.evan-hawkins.com/uploads/1/3/0/7/130775987/7544639.pdf
- https://cdn.shopify.com/s/files/1/0431/8704/4515/files/muvulupimatunisolumusetox.pdf
- https://cdn.shopify.com/s/files/1/0429/9925/1097/files/elf_yourself_free.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/31240515614.pdf
- https://cdn.shopify.com/s/files/1/0428/1024/5279/files/21029153727.pdf
- https://cdn.shopify.com/s/files/1/0432/9419/5870/files/29643952354.pdf
- https://cdn.shopify.com/s/files/1/0438/6127/8870/files/xapukodi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nidosavexurirevinuno.pdf
- https://cdn.shopify.com/s/files/1/0429/4089/1292/files/gupuviveb.pdf
- https://cdn.shopify.com/s/files/1/0432/3305/0779/files/winalipadulagoval.pdf
- https://cdn.shopify.com/s/files/1/0432/4474/8950/files/41134296782.pdf
- https://cdn.shopify.com/s/files/1/0429/7228/3033/files/amsterdam_recorder_obits.pdf
- https://cdn.shopify.com/s/files/1/0428/4393/0791/files/3989275920.pdf
- https://cdn.shopify.com/s/files/1/0433/6576/1176/files/bupojuxelodumud.pdf
- https://cdn.shopify.com/s/files/1/0431/7007/0690/files/fanarum.pdf
- https://cdn.shopify.com/s/files/1/0431/9435/1778/files/60288228641.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000059e8.bin` `40906a157b597801e212d5a0022354074104aad42bde94d60fb080dc14f75d64`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x59E8	5288 bytes
`font_01_sfnt_off00006be2.bin` `13bec3536b35387aaf2eacb335915f816d601a4962ecb4a2ddc13efd693f51ac`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6BE2	10324 bytes

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