PDF malware analysis — malicious · 4f1c21c151e6a1e1

MALICIOUS

PDF

45.8 KB Created: 2020-08-05 14:49:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6abecf4d2b007489f32579d7f1eb8a78 SHA-1: 5a874e41adb7599b11efdf860737b0bed55f93f8 SHA-256: 4f1c21c151e6a1e1ac478043200bc1254cb2b976e1e046970c3a848ad5cb81fa

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a mass external link farm, with one prominent link disguised as educational content. This link, 'https://ttraff.com/pify?keyword=carnatic+music+lessons+in+malayalam+pdf', redirects to malicious infrastructure, indicating a phishing or redirection attempt. The presence of numerous PDF links, many hosted on Shopify, suggests an attempt to obscure the malicious destination and potentially leverage legitimate platforms for distribution. No scripts were extracted, but the PDF structure and embedded links strongly suggest a social engineering attack.

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/pify?keyword=carnatic+music+lessons+in+malayalam+pdf
- http://files.alpinedesignsmt.com/uploads/1/3/2/3/132303163/5733821.pdf
- http://files.bshcare.com/uploads/1/3/0/7/130776067/wipolaf_gonugasebofotiw.pdf
- http://files.willcountyboard.com/uploads/1/3/0/8/130874284/9967945.pdf
- http://files.mypointofheu.com/uploads/1/3/1/0/131070152/9516153.pdf
- http://files.gbyws.org/uploads/1/3/1/4/131483019/paludizixi-pazibokadelok-xovubonavegazuz-nobuxudisapefod.pdf
- https://cdn.shopify.com/s/files/1/0430/8510/3255/files/libevu.pdf
- https://cdn.shopify.com/s/files/1/0434/6229/5714/files/xotetejap.pdf
- https://cdn.shopify.com/s/files/1/0430/9581/8404/files/affectation_minesec_2020.pdf
- https://cdn.shopify.com/s/files/1/0431/7764/0092/files/63773557160.pdf
- https://cdn.shopify.com/s/files/1/0435/5453/7624/files/14867219066.pdf
- https://cdn.shopify.com/s/files/1/0439/2812/5595/files/45056838993.pdf
- https://cdn.shopify.com/s/files/1/0430/5915/1009/files/dudelekotufobesanulovoti.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bisadugizutojaririxenudep.pdf
- https://cdn.shopify.com/s/files/1/0428/9265/6799/files/lalidazalir.pdf
- https://cdn.shopify.com/s/files/1/0435/0833/4744/files/gijugalutoj.pdf
- https://cdn.shopify.com/s/files/1/0431/4365/9677/files/41092971071.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_off00006cd5.bin` `232126a975d4793243729ce5250e69644c50bb6e1c61f4899ef661bba987e669`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6CD5	5308 bytes
`font_01_sfnt_off00007ed5.bin` `3669733b2e31a912541c263a8b46b92a427c80afcc1e0f2f77acdbb243f168de`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7ED5	13952 bytes

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