PDF malware analysis — malicious · 29c1129fc429a91d

MALICIOUS

PDF

32.5 KB Created: 2020-08-17 02:05:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 14ef4e6ec8fbeaa9925c0b55942d1093 SHA-1: 4e6bc0e3ff322c60cacf309315d574ef43522fe8 SHA-256: 29c1129fc429a91d5f0ed6ad4e7348b8a1508752f2e511b663a3539e7114d46f

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One such link, 'https://ttraff.com/pify?keyword=central+de+incendio+honeywell+manual', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to lure users through a fake search result for a technical manual.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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=central+de+incendio+honeywell+manual
- http://files.riverviewchurchcoeymans.com/uploads/1/3/1/6/131606818/rigazupe_popigalegibewes.pdf
- http://visisop.blitzmarketingma.com/uploads/1/3/0/8/130874642/lokowirisojuxusofutu.pdf
- http://files.pmystic.com/uploads/1/3/1/3/131398235/4d47e16dca5.pdf
- https://cdn.shopify.com/s/files/1/0437/6782/4533/files/niferozubefurilogaf.pdf
- https://cdn.shopify.com/s/files/1/0432/1342/2753/files/lamozemojize.pdf
- https://cdn.shopify.com/s/files/1/0434/3031/4133/files/zibiponenijulewu.pdf
- https://cdn.shopify.com/s/files/1/0433/2562/0374/files/99505009190.pdf
- https://cdn.shopify.com/s/files/1/0431/4441/3341/files/xasunebe.pdf
- https://cdn.shopify.com/s/files/1/0430/3015/1330/files/46766937156.pdf
- https://cdn.shopify.com/s/files/1/0434/6265/6166/files/bokemipafezenixolifofa.pdf
- https://cdn.shopify.com/s/files/1/0438/2782/2749/files/10951903024.pdf
- https://cdn.shopify.com/s/files/1/0427/8976/5279/files/mipogo.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_off000043fc.bin` `257693429c777c3a1b86632dc0753e5d7516af78699308cc3d2dcbe788bbc5c6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x43FC	5100 bytes
`font_01_sfnt_off0000552d.bin` `a18f1dc284390bb845014a40e81ed9d66aae134ab0c6b2c9663284f699da8a73`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x552D	9408 bytes

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