PDF malware analysis — malicious · 81111dc5c1bfc0a4

MALICIOUS

PDF

46.0 KB Created: 2020-09-21 09:46:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5f3886e51d5b330f8f434cac23e715d5 SHA-1: 81fa684ed6071db6195cf59bc3c60c8b51ece49e SHA-256: 81111dc5c1bfc0a418c820fea8710db3de1b9f31c29bd9dab1de74c6d2c8c16f

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary link directs to 'https://ttraff.me/wix?keyword=root+test+calculator+wolfram', which is likely part of a phishing or malware distribution chain. Another critical heuristic identified a PDF link farm, with numerous links pointing to PDF files hosted on various domains, suggesting a coordinated effort to distribute malicious content or engage in SEO abuse for traffic redirection. No scripts were extracted from this sample.

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.me/wix?keyword=root+test+calculator+wolfram
- http://zidali.camdenone.com/uploads/1/3/0/8/130814729/dd919415ff.pdf
- http://gutoja.lazuliliterarygroup.com/uploads/1/3/1/4/131438562/81045e37ddd6a5b.pdf
- http://files.camelliafestival.org/uploads/1/3/0/7/130776439/5859209.pdf
- http://razin.scenicroadsrv.com/uploads/1/3/0/9/130969723/cd149bca5fce.pdf
- http://bavebup.lakecountyiltransition.com/uploads/1/3/1/4/131438539/9653562.pdf
- https://d659482b-011b-4e85-9042-b16f2909c4d4.filesusr.com/ugd/c268f7_02aacf40b8c94929ac30f5a1f0c60341.pdf?index=true
- https://ba02d1cc-c5c1-46b3-8f08-958ef98597db.filesusr.com/ugd/fd7405_95b91369b20e4c948290fb3f0573f99c.pdf?index=true
- https://e2092f46-c199-46be-b43f-693cfbd62084.filesusr.com/ugd/76156b_79ba94b9dc174dfa8b83ab6d7f757554.pdf?index=true
- https://517ca83a-7bde-443a-821a-78c7752a927f.filesusr.com/ugd/f9fac6_5844280a3add450b951839b9597d5ead.pdf?index=true
- https://8f4a5547-630f-4fc2-9987-909a77b5cd67.filesusr.com/ugd/a86d68_01c8ef7c2369496989d6abef11586380.pdf?index=true
- https://f38f27dc-df21-4316-8019-64a5cf5da2e3.filesusr.com/ugd/0d089b_8a97fb408f3b41c8b7039dd34dd00928.pdf?index=true
- https://97f92ab0-6877-4790-a91a-63e7b0606e4d.filesusr.com/ugd/7f614e_4d3cfa3931174b55b80eedc04ca7072c.pdf?index=true
- 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_off000069e3.bin` `c92d8256f5c45f67d4963671cfd107f921c847a2a0d870b66761a8a41e2ef19d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69E3	4852 bytes
`font_01_sfnt_off00007a7d.bin` `c9f203141688dde3def30d015a68987852e9457afa90bc485d46d2a22ffc9903`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A7D	10256 bytes
`font_02_sfnt_off00009d87.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9D87	4324 bytes

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