PDF malware analysis — malicious · e6d7d1809bd0c228

MALICIOUS

PDF

60.6 KB Created: 2020-08-04 19:47:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bf86a57a8d0a59720d70b2fdaec8a868 SHA-1: 7d936ba81ef1b6b2c02ed3a22d80fc501f6236ac SHA-256: e6d7d1809bd0c228c4396e1de0f25c74822aa2b652c828c5105abce7877115d3

150 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains a mass external link farm, with one critical link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be the same as the malicious redirector. This suggests the document's primary purpose is to redirect users to malicious sites, likely for further exploitation or phishing.

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=culture+media+used+in+microbiology+pdf
- http://files.jhstoys.com/uploads/1/3/0/7/130775402/lusoseriti.pdf
- http://files.cwowi.eu/uploads/1/3/1/4/131483108/gisufojeboru.pdf
- http://files.eliteladiesfashion.co.uk/uploads/1/3/2/6/132682070/dilonodemale.pdf
- http://files.oldpueblosoapery.com/uploads/1/3/1/4/131405977/palib.pdf
- http://files.mtvernonpentecostal.com/uploads/1/3/0/9/130969052/1911917.pdf
- https://cdn.shopify.com/s/files/1/0434/4492/8674/files/bopode.pdf
- https://cdn.shopify.com/s/files/1/0438/2484/0861/files/thomas_and_finney_calculus_9th_edition.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2581582401.pdf
- https://cdn.shopify.com/s/files/1/0433/9115/6380/files/84956834109.pdf
- https://cdn.shopify.com/s/files/1/0434/2166/3397/files/clasificacion_de_antibioticos_2020.pdf
- https://cdn.shopify.com/s/files/1/0433/9659/5870/files/57320942793.pdf
- https://cdn.shopify.com/s/files/1/0436/5372/6358/files/80018159603.pdf
- https://cdn.shopify.com/s/files/1/0434/2297/4117/files/28528714670.pdf
- https://cdn.shopify.com/s/files/1/0429/7618/2426/files/78745836649.pdf
- https://cdn.shopify.com/s/files/1/0431/8714/2818/files/dukaposarazumuxu.pdf
- https://cdn.shopify.com/s/files/1/0436/1751/7725/files/7244529317.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_off0000a0fd.bin` `ce6f30ba00979e8a6b74fc6dedc81edcffe79b6a321e0f72090acb50429dc975`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA0FD	5620 bytes
`font_01_sfnt_off0000b400.bin` `a54a089ac55844f18eca0cecb36a2918a5363b5235377b6bbaa2269c039e949b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB400	10208 bytes
`font_02_sfnt_off0000d6e8.bin` `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD6E8	4324 bytes

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