PDF malware analysis — malicious · f7bfea2fc72a4fb8

MALICIOUS

PDF

39.7 KB Created: 2020-08-20 08:07:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ac3d8884893562f1bf8f351419291006 SHA-1: 810c13a0c7f961fa308a82ccac3341950adf34d8 SHA-256: f7bfea2fc72a4fb85caf49aa915c43287ed195a1489c5c6d18e9bcd31eb9bf4c

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.003 Command and Scripting Interpreter: Windows Command Shell

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination. The document body, though heavily obfuscated, contains references to 'email contact form html php' and the malicious URL itself, suggesting a phishing lure. Additionally, the 'SE_CLIPBOARD_COMMAND_LURE' heuristic indicates the document may instruct the user to execute commands, potentially to download and run further payloads.

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.
Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE

Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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=email+contact+form+html+php
- http://files.capccpnpalberta.com/uploads/1/3/1/4/131407164/lusoni_wadabut.pdf
- http://files.westashdesigns.com/uploads/1/3/1/3/131398479/mawavoban-bugowawax-lepireserov.pdf
- http://files.aboundinlove.com/uploads/1/3/1/0/131069869/nipumifabolej_wibuvupekefile.pdf
- http://files.thepaintedacresranch.com/uploads/1/3/1/6/131607010/d83e813dc769eb0.pdf
- http://files.unioncongregationalucc.org/uploads/1/3/0/7/130775413/197179.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51730359377.pdf
- https://cdn.shopify.com/s/files/1/0429/8568/5153/files/jozote.pdf
- https://cdn.shopify.com/s/files/1/0434/8280/8472/files/avenant_au_bail_gratuit.pdf
- https://cdn.shopify.com/s/files/1/0448/4608/8349/files/data_entry_test.pdf
- https://cdn.shopify.com/s/files/1/0438/4676/2656/files/90203843361.pdf
- https://cdn.shopify.com/s/files/1/0429/2503/1590/files/case_study_format_download.pdf
- https://cdn.shopify.com/s/files/1/0432/2466/2173/files/ctet_eligibility_2020.pdf
- https://cdn.shopify.com/s/files/1/0433/8286/6072/files/28796218424.pdf
- https://cdn.shopify.com/s/files/1/0438/8395/4328/files/bumazizosupel.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_off00005d9c.bin` `5443e88a8cf2e2fdd8bf3bea1d782252d1bfa4d5a11188730f3f4cba043f3ee2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D9C	5036 bytes
`font_01_sfnt_off00006e88.bin` `e52d8962baaf877753f1dc6a9c064724300f82c0f5686acc46d741eb0711a5dc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6E88	10448 bytes

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