PDF malware analysis — malicious · 8f908d7ff25cbbeb

MALICIOUS

PDF

59.5 KB Created: 2020-08-06 15:16:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 89d77172c38c1bcb4251ea20c5d4912e SHA-1: 3cc222341af1e00150dcb7a332227ad72520b9a9 SHA-256: 8f908d7ff25cbbeb2f24eabc731dd9c34f3f2a4ac3bfb165612a0c8e6d7a3447

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous external links, a common tactic for SEO poisoning and redirecting users to malicious sites. The primary malicious link, 'https://ttraff.cc/pify?keyword=nigeria+accounting+standard+board+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to the same URL and a related benign Shopify URL, suggesting a lure to trick users into clicking the malicious link. No scripts were extracted, limiting the analysis to the document's structure and embedded links.

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.cc/pify?keyword=nigeria+accounting+standard+board+pdf
- http://files.loavesandpiles.com/uploads/1/3/1/6/131607075/5698602.pdf
- http://files.student-teaching.us/uploads/1/3/0/7/130739528/nevumelekiriva-xazufufijobigu.pdf
- http://files.happydogsestepona.com/uploads/1/3/2/7/132710700/4227128.pdf
- http://files.smithlab.ca/uploads/1/3/1/0/131070165/9470658.pdf
- https://cdn.shopify.com/s/files/1/0428/6893/2767/files/vagetuxi.pdf
- https://cdn.shopify.com/s/files/1/0430/8529/9874/files/47807056893.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rejumaxerufu.pdf
- https://cdn.shopify.com/s/files/1/0430/5630/0186/files/boxizekimiduzovef.pdf
- https://cdn.shopify.com/s/files/1/0435/8524/1256/files/484630536.pdf
- https://cdn.shopify.com/s/files/1/0430/7176/6695/files/19873602044.pdf
- https://cdn.shopify.com/s/files/1/0433/9816/8743/files/12328976030.pdf
- https://cdn.shopify.com/s/files/1/0430/5689/0013/files/19167618849.pdf
- https://cdn.shopify.com/s/files/1/0434/7949/8918/files/nejapikiriru.pdf
- https://cdn.shopify.com/s/files/1/0429/8643/8807/files/52494230699.pdf
- https://cdn.shopify.com/s/files/1/0438/2529/9606/files/ledemedi.pdf
- https://cdn.shopify.com/s/files/1/0427/9150/1990/files/nejixokasanimagoloralafot.pdf
- https://cdn.shopify.com/s/files/1/0429/8237/5577/files/27066164269.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_off0000ac76.bin` `094b3e5bdd5205c9297f5ba64ab27aad6f442b4a0223c00fe1c62697ebef5ce6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAC76	5400 bytes
`font_01_sfnt_off0000bee2.bin` `a76fcc26697f8311d2b84155ce41a362e26ad9784b67e2db15336ab6e41935f3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBEE2	10036 bytes

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