PDF malware analysis — malicious · 825a515bb31c75cc

MALICIOUS

PDF

50.1 KB Created: 2020-08-01 10:29:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a416c43aca2dff112052683b4fa0f477 SHA-1: d2f8e3b3ee1110686dd4be8f29574eb7cc001b5a SHA-256: 825a515bb31c75ccef531e606b85e6633603a09c93fc04c75035d28c94cb0fe6

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to funnel victims to a malicious site. The document body, though heavily obfuscated, contains the same URL and references to 'a deeper love inside', suggesting a lure. The PDF also contains a large number of external links, many pointing to Shopify domains, which is characteristic of SEO link farm abuse to obscure the final malicious destination.

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=a+deeper+love+inside
- http://files.brentfields.com/uploads/1/3/0/8/130815437/pukajorowis_somapopivubazeb_vevuxemobun_dexif.pdf
- http://files.hooverridge.com/uploads/1/3/1/4/131407369/bapexalenawavafebi.pdf
- http://files.blackwatervideo.com/uploads/1/3/1/8/131856877/a6847938.pdf
- http://files.jewellhjohnson.com/uploads/1/3/2/8/132816158/252b1d3f634b0.pdf
- https://cdn.shopify.com/s/files/1/0432/2590/7368/files/88240125574.pdf
- https://cdn.shopify.com/s/files/1/0436/0385/3476/files/15193793921.pdf
- https://cdn.shopify.com/s/files/1/0433/0097/8853/files/4476058953.pdf
- https://cdn.shopify.com/s/files/1/0431/5106/5243/files/what_dies_lml_mean.pdf
- https://cdn.shopify.com/s/files/1/0427/8976/5279/files/samabutikoto.pdf
- https://cdn.shopify.com/s/files/1/0433/0350/1989/files/37415074859.pdf
- https://cdn.shopify.com/s/files/1/0429/0733/6857/files/95800333851.pdf
- https://cdn.shopify.com/s/files/1/0434/7668/0869/files/5802787686.pdf
- https://cdn.shopify.com/s/files/1/0429/9636/7511/files/vajukodezu.pdf
- https://cdn.shopify.com/s/files/1/0427/4615/1078/files/dawigaximunej.pdf
- https://cdn.shopify.com/s/files/1/0437/4816/3735/files/gevizakenis.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_off000067e0.bin` `40c3dbc9ec1163e46d24a1d668f91df2fdbcc5a207e9fd874c1806bcc5dadc00`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67E0	4792 bytes
`font_01_sfnt_off00007842.bin` `a543245db3557b5356b138fe64d76555bcb0b12131b35a5aa42bdeec9f4676fa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7842	14664 bytes
`font_02_sfnt_off0000a682.bin` `ea75db71c9df7250347a03039f742fcd189f5fc3f08964e696816fa8b5227073`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA682	16092 bytes

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