PDF malware analysis — malicious · ac7fbc85046611c3

MALICIOUS

PDF

45.6 KB Created: 2020-09-19 04:32:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4cd7e072d46de2dc81544fb17132f9f2 SHA-1: 4a2cf3c1fe12575708697074809c6a418476c9f0 SHA-256: ac7fbc85046611c3790a425b0babf7f8187f35d20cbb734de808efe1dd7bb013

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to potentially malicious redirectors or link farms. One critical heuristic identified a link to known malicious redirector infrastructure, and another noted a link farm structure. The document body, though heavily obfuscated, contains references to URLs that are likely part of this redirection scheme. No scripts were extracted from this sample.

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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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.club/wix?keyword=2013+scion+tc+dezod+turbo+kit
- http://files.eastafricanscholarsfund.org/uploads/1/3/0/7/130776718/vemofuva.pdf
- http://metovijox.fenianfear.com/uploads/1/3/2/7/132740708/tinogotasebodofusij.pdf
- https://cdn.shopify.com/s/files/1/0431/6305/8340/files/gumanisawofibikizugif.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/totavari.pdf
- https://cdn.shopify.com/s/files/1/0436/2525/0974/files/saeco_odea_giro_plus_manual.pdf
- https://5c966eb8-edb9-4a4c-a181-51b2e2e13f44.filesusr.com/ugd/956c05_09f40e5d0fa84e1895f500ef9d419a84.pdf?index=true
- https://58ebfcc9-fdea-459e-a6f4-aa28a6011138.filesusr.com/ugd/ea2c45_852a0f78dec24c7daf0c0e23ac124f8f.pdf?index=true
- https://cdn.shopify.com/s/files/1/0446/3912/5667/files/the_assertiveness_workbook_randy_j._paterson.pdf
- https://cdn.shopify.com/s/files/1/0431/9812/0094/files/bollywood_hd_video_songs_2017.pdf
- https://cdn.shopify.com/s/files/1/0435/8566/7235/files/variedades_de_cafe_y_sus_caracteristicas.pdf
- https://cdn.shopify.com/s/files/1/0437/8597/8013/files/assessment_tools_in_social_work.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_off00005e6d.bin` `14927a989a058f6eb924193221579707e537e004f8135b9aad584a3d960eaeeb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E6D	5340 bytes
`font_01_sfnt_off000070b2.bin` `601acf4ffbc36f6af529f6cd271ad05c97890058e7da4aab4abda044bb6fd4fe`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x70B2	10360 bytes
`font_02_sfnt_off00009449.bin` `0a2507360a40dd56b84230664db2b3a2689cb34b0aa642599c8245950ba374cb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9449	16304 bytes

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