PDF malware analysis — malicious · a7b7b5bf542579b5

MALICIOUS

PDF

43.9 KB Created: 2020-07-31 14:55:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: d17ba25c4d6d8076c83b959d80949867 SHA-1: 52c90faaf98f9a07013d1aa95095b66b1a7c3dbd SHA-256: a7b7b5bf542579b562442c96b0aafde26b26d12b0b1bcb8b85bd9b16266f51e4

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a high number of embedded links, many of which point to external PDF files hosted on Shopify. One critical heuristic indicates a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final malicious destination. The presence of a visual download button further supports a social engineering attack pattern.

Heuristics 4

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.
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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=aristotle+on+friendship+pdf
- http://files.southwoden.com/uploads/1/3/0/8/130814110/904edbc.pdf
- http://files.beyondprocess.com/uploads/1/3/2/6/132682684/80b910de.pdf
- http://files.nobleartentertainment.com/uploads/1/3/0/9/130969080/setag.pdf
- http://files.endenlabs.com/uploads/1/3/0/7/130740127/nunetapurile-xexemerene.pdf
- http://files.nobleartentertainment.com/uploads/1/3/0/9/1309690
- https://cdn.shopify.com/s/files/1/0438/1245/4560/files/rebagotifedux.pdf
- https://cdn.shopify.com/s/files/1/0432/4402/8059/files/7123358591.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mefawubizujoki.pdf
- https://cdn.shopify.com/s/files/1/0432/6657/2452/files/dilifomora.pdf
- https://cdn.shopify.com/s/files/1/0429/8424/3351/files/mesob.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85286147205.pdf
- https://cdn.shopify.com/s/files/1/0432/0421/4942/files/40870780461.pdf
- https://cdn.shopify.com/s/files/1/0428/1715/9335/files/28999525634.pdf
- https://cdn.shopify.com/s/files/1/0432/6244/3683/files/susilurelo.pdf
- https://cdn.shopify.com/s/files/1/0430/1769/9477/files/rewebemekinanureti.pdf
- https://cdn.shopify.com/s/files/1/0436/6453/9798/files/57384883276.pdf
- https://cdn.shopify.com/s/files/1/0437/4816/3735/files/dajudusimej.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_off00007029.bin` `7c447d48831afb0123f7003d250ab2bfe80abb74aeb41000a328e510909f16c2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7029	4696 bytes
`font_01_sfnt_off0000800d.bin` `d847574ebc9f81ba1868f3aab2444d8e1bdc8e5cc71cea849af9f19b60fcdb5b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x800D	10076 bytes

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