PDF malware analysis — malicious · d06f9bb8bd79016c

MALICIOUS

PDF

50.8 KB Created: 2020-08-02 22:11:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 45f6c8ac857af5eec4ff9c9796967a6d SHA-1: ac9198b9469fc9e954b24bbe0a711fcc6456eb39 SHA-256: d06f9bb8bd79016c27550ccb42f3722df33082f0d6736637ebe4d2a0f4a1fde5

120 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to a URL that appears to be a lure for a 'Nissan service manual'. This link redirects to further infrastructure, including a large number of PDFs hosted on Shopify. The document body contains the malicious URL and several benign-looking PDF links, likely part of a link farm to improve SEO for malicious content. No scripts were extracted from this sample.

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=nissan+service+manual
- http://files.luciadisanto.com/uploads/1/3/1/0/131069789/9563369.pdf
- http://files.magnoliaminimart.com/uploads/1/3/1/4/131406036/baxupimowizar.pdf
- http://files.cphsvirtualmuseum.com/uploads/1/3/2/6/132696113/4705564.pdf
- http://files.chaplainsweeklythought.net/uploads/1/3/1/4/131408970/401c3ebb16c48.pdf
- http://files.kenvoss-solutions.com/uploads/1/3/1/1/131164431/dugijubota.pdf
- https://cdn.shopify.com/s/files/1/0431/5830/6980/files/34457989270.pdf
- https://cdn.shopify.com/s/files/1/0431/5129/4619/files/vabufa.pdf
- https://cdn.shopify.com/s/files/1/0430/4211/1650/files/72495743641.pdf
- https://cdn.shopify.com/s/files/1/0434/3067/4597/files/tejifarijitixim.pdf
- https://cdn.shopify.com/s/files/1/0435/6590/8136/files/mifiwivurol.pdf
- https://cdn.shopify.com/s/files/1/0430/0596/8537/files/sinukogiv.pdf
- https://cdn.shopify.com/s/files/1/0432/7243/7913/files/89842330510.pdf
- https://cdn.shopify.com/s/files/1/0427/9749/8535/files/desurefipiburibosuwilulo.pdf
- https://cdn.shopify.com/s/files/1/0440/2806/7990/files/99929393128.pdf
- https://cdn.shopify.com/s/files/1/0429/5471/9395/files/debidurake.pdf
- https://cdn.shopify.com/s/files/1/0432/7620/6238/files/kagugowoguwolajef.pdf
- https://cdn.shopify.com/s/files/1/0432/3734/3387/files/24932443855.pdf
- https://cdn.shopify.com/s/files/1/0434/5433/3093/files/70123525362.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_off0000890f.bin` `f147438e5c4d6c367a186d65ec261673ba59367cd57272e823ac59ecb75b7a75`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x890F	4972 bytes
`font_01_sfnt_off000099ed.bin` `8761d8a9f31d3b888b21c512e22cd13a6656075ba5121208cff0040f38c39c9b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x99ED	10508 bytes

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