PDF malware analysis — malicious · d2b0c5c533f6b0cb

MALICIOUS

PDF

54.7 KB Created: 2020-08-07 05:40:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 46204975e9a9ff35c722c7cec071126e SHA-1: 27149acbee2468804df7fc246719703fc857e993 SHA-256: d2b0c5c533f6b0cbb91082be9e2785e27f5d71a423badde989a04be59d3f4147

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, masquerading as a schematic, which is a common tactic for SEO link farms. The primary malicious link, https://ttraff.cc/pify?keyword=princeton+reverb+schematic+pdf, redirects to a link farm, indicating a likely attempt to manipulate search engine rankings or distribute malicious content through a chain of redirects. No scripts were extracted, and the document body is heavily obfuscated, but the heuristic firings strongly suggest a malicious redirector and link farm 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=princeton+reverb+schematic+pdf
- http://files.spashphysics.com/uploads/1/3/0/9/130969190/xitasutapavojuxi.pdf
- http://files.mywright2bdazzled.com/uploads/1/3/1/1/131164531/velumuzariboxudikun.pdf
- http://files.protectthegame.com/uploads/1/3/1/4/131483020/vobatel.pdf
- https://cdn.shopify.com/s/files/1/0431/1321/8210/files/git_mergetool_mac.pdf
- https://cdn.shopify.com/s/files/1/0428/3056/1436/files/xivilopiwubotawalupej.pdf
- https://cdn.shopify.com/s/files/1/0431/8127/7348/files/muwudikopubidakod.pdf
- https://cdn.shopify.com/s/files/1/0435/2878/1988/files/57686535548.pdf
- https://cdn.shopify.com/s/files/1/0429/9328/7331/files/7955679785.pdf
- https://cdn.shopify.com/s/files/1/0431/4074/3329/files/62629849946.pdf
- https://cdn.shopify.com/s/files/1/0432/5824/9376/files/90553974944.pdf
- https://cdn.shopify.com/s/files/1/0433/8289/8840/files/76284996460.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tazoxusejeko.pdf
- https://cdn.shopify.com/s/files/1/0429/3469/8147/files/46657788892.pdf
- https://cdn.shopify.com/s/files/1/0431/4071/0566/files/surakogasomefemo.pdf
- https://cdn.shopify.com/s/files/1/0431/6676/1120/files/lunevuse.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_off00008ae4.bin` `1854cee64e1a644e949252e680f6491e10d1d28c9e2e8c18b590357120cb1a9e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8AE4	5352 bytes
`font_01_sfnt_off00009cd5.bin` `69f62f8e12a5e58803ef6143bf2d998d4fbd3d08eafdc36cc267b5dde0d70f28`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9CD5	10264 bytes
`font_02_sfnt_off0000bff1.bin` `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBFF1	4324 bytes

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