PDF malware analysis — malicious · e9f8a08b9754e75c

MALICIOUS

PDF

53.4 KB Created: 2020-09-12 03:26:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0289e6b5945d16d753cfd64e446b3ae2 SHA-1: c5990d44456fef835cb43c563a9f4ec090b420f0 SHA-256: e9f8a08b9754e75cda709defb93e1265f5d6922a6babfd72a11166749c954265

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains the target URL which is likely intended to trick the user into downloading further malicious content or visiting a phishing site. The ML classifier strongly supports the malicious nature of this PDF.

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/wix?keyword=inheritance+cycle+book+2+pdf
- http://lezizo.maranathabiblens.com/uploads/1/3/0/7/130776132/4893919.pdf
- http://serenurew.selectricartists.com/uploads/1/3/1/4/131407370/nuwibelasimopeputuko.pdf
- http://files.sativasoapshoppe.com/uploads/1/3/1/3/131384127/d80466ed.pdf
- http://files.newgeorgiaclaywork.com/uploads/1/3/0/7/130775515/lujonepik.pdf
- http://totejala.thesummitcommunitychurch.com/uploads/1/3/1/6/131606490/jebiterisupavijixos.pdf
- https://cdn.shopify.com/s/files/1/0434/5220/3161/files/afterburn_sylvia_day_descargar.pdf
- https://cdn.shopify.com/s/files/1/0461/6427/9448/files/academic_writing_guidelines_resource_gcu.pdf
- https://cdn.shopify.com/s/files/1/0437/5409/4753/files/permutations_vs_combinations_worksheet_answers.pdf
- https://cdn.shopify.com/s/files/1/0437/2883/0632/files/fipokusodo.pdf
- https://cdn.shopify.com/s/files/1/0429/6422/2101/files/wilunexewelitamewululo.pdf
- https://cdn.shopify.com/s/files/1/0429/9853/0202/files/duraxowoximimekax.pdf
- https://cdn.shopify.com/s/files/1/0431/5290/0250/files/18516625387.pdf
- https://cdn.shopify.com/s/files/1/0432/3128/1314/files/xosijunizuto.pdf
- https://cdn.shopify.com/s/files/1/0430/3483/7149/files/redoxiruvewekanoto.pdf
- https://cdn.shopify.com/s/files/1/0457/9200/2204/files/impresora_mod_minecraft_1.8.9.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_off00008616.bin` `2fa92a11d8af6219c959bdf23afeb2bc3d53c065a9e3eb44d1748f5317c7137b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8616	5228 bytes
`font_01_sfnt_off000097c7.bin` `b60a3e49e0701b79a5736a73c79362a7a8639f6bd42a7d98e1d27a4c35964614`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x97C7	10068 bytes
`font_02_sfnt_off0000ba43.bin` `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBA43	4324 bytes

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