PDF malware analysis — malicious · f1fce161f8cb30ff

MALICIOUS

PDF

39.7 KB Created: 2020-08-01 07:40:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b0ab741b33654268d1aa754a4483274c SHA-1: 676bcfddfd6ee3e1f9b77189d2312751217bb5e6 SHA-256: f1fce161f8cb30ffffe034f175df232e7b0aa391e43e6dd1c456ef8cf67e4fd8

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

This PDF file contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=unity+follow+mouse'. The document body, though heavily obfuscated, contains this same URL, suggesting the primary intent is to redirect the user to malicious content. No scripts were extracted from this sample.

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.cc/pify?keyword=unity+follow+mouse
- http://files.goeticrecords.com/uploads/1/3/0/7/130776151/dupiro-kixolili-ditezeboravez-siwuwure.pdf
- http://files.eatsleepact.com/uploads/1/3/1/4/131453294/wusup.pdf
- http://files.gsfaria.com/uploads/1/3/1/4/131437457/1280939.pdf
- http://files.wyattearpexplorers.com/uploads/1/3/2/6/132695730/demukesiwamelafat.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/moxudenolaruxorurafugi.pdf
- https://cdn.shopify.com/s/files/1/0433/5819/1768/files/79245159047.pdf
- https://cdn.shopify.com/s/files/1/0429/8804/4442/files/vixuda.pdf
- https://cdn.shopify.com/s/files/1/0433/3345/1944/files/nitudix.pdf
- https://cdn.shopify.com/s/files/1/0432/3993/2064/files/94150984820.pdf
- https://cdn.shopify.com/s/files/1/0438/0593/3730/files/38272168395.pdf
- https://cdn.shopify.com/s/files/1/0429/5458/8316/files/41894557593.pdf
- https://cdn.shopify.com/s/files/1/0429/1906/7815/files/zapifenefu.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83300066175.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52325197595.pdf
- https://cdn.shopify.com/s/files/1/0431/3546/7682/files/53141235939.pdf
- https://cdn.shopify.com/s/files/1/0431/1888/7073/files/kanor.pdf
- https://cdn.shopify.com/s/files/1/0428/1496/3868/files/vawebifuwizojumub.pdf
- https://cdn.shopify.com/s/files/1/0429/5963/4591/files/ruwesegawa.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_off00005bc5.bin` `6a37c2e4ef24747a12eba0b8050e460e6120a94874fa520a6e8381c3eb4ac342`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5BC5	4792 bytes
`font_01_sfnt_off00006c2a.bin` `4f2a6847900b4beab3034d5c80f3701e3b0c41e8d765c24f434b7265dfd5b087`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6C2A	11652 bytes

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