PDF malware analysis — malicious · f4cdc4427758f30d

MALICIOUS

PDF

43.4 KB Created: 2020-08-21 00:29:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3051fe13f87699169c25b57274c9ad10 SHA-1: 1771ae0b73082d148dc6185eee1d533a8eb82f26 SHA-256: f4cdc4427758f30d7405d3ce061583d34f0517991242335172c54ede2dd7c496

130 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded URLs, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Rectification of partnership deed format' and includes the malicious URL, suggesting a lure for users to click on a link that likely leads to a phishing site or malware. The presence of numerous external PDF links also indicates a link farm, a common tactic for SEO manipulation or distributing malicious content.

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.
Fake invoice / payment lure low SE_INVOICE_LURE

Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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.ru/pify?keyword=rectification+of+partnership+deed+format
- http://files.cakencrumbs.co.uk/uploads/1/3/1/0/131070291/2f184fb3.pdf
- http://files.foundationforadrugfreeworldnewyorkchapter.org/uploads/1/3/1/3/131379439/ladekamapumasa.pdf
- http://files.dojgameshq.com/uploads/1/3/1/4/131483154/bativikigadapodizu.pdf
- https://cdn.shopify.com/s/files/1/0431/3602/4737/files/86950287698.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/26384136461.pdf
- https://cdn.shopify.com/s/files/1/0437/9849/5389/files/kepodijomapijotomokeb.pdf
- https://cdn.shopify.com/s/files/1/0433/3617/1688/files/shik_shak_shok.pdf
- https://cdn.shopify.com/s/files/1/0432/8413/6086/files/92384974570.pdf
- https://cdn.shopify.com/s/files/1/0440/6935/5670/files/american_airlines_microservices.pdf
- https://cdn.shopify.com/s/files/1/0430/7173/3917/files/ubuntu_16._04_startup_script.pdf
- https://cdn.shopify.com/s/files/1/0430/8946/1402/files/best_air_supply_songs.pdf
- https://cdn.shopify.com/s/files/1/0432/9422/8630/files/najaxur.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_off00005df2.bin` `04d3d7cf99c44700ade0d7b2981769108d4601ea01de0f16b175f62005f24eb6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5DF2	5156 bytes
`font_01_sfnt_off00006f43.bin` `d7e2859b7f61c7e94cd32a16b2536d7b9175e808ea2024fca1058d1fa3fbd555`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F43	10420 bytes
`font_02_sfnt_off000092da.bin` `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x92DA	4324 bytes

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