PDF malware analysis — malicious · b4b1702bd2c2f5ba

MALICIOUS

PDF

43.8 KB Created: 2020-08-03 09:19:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5cf029442564eeb64f424faac69c7cf6 SHA-1: 2bde7a8d74268bb1b32f14d070e2f682f30b83c5 SHA-256: b4b1702bd2c2f5ba32f79b1fee67ffd377af6dddd55611c83a7106b4c7c2baa5

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file exhibits characteristics of a link farm, containing numerous embedded URLs pointing to external PDF documents. One of these URLs, 'https://ttraff.ru/pify?keyword=ftp+for+3ds', is flagged as a malicious redirector. The presence of a large number of links suggests an attempt to manipulate SEO or distribute malicious content indirectly. No scripts were extracted, and the document body is heavily obfuscated.

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.ru/pify?keyword=ftp+for+3ds
- http://files.nancytoofani.com/uploads/1/3/0/7/130775786/8399023.pdf
- http://files.wowgraphix.com/uploads/1/3/2/7/132710665/2543720.pdf
- http://files.celebrategreaterplymouth.org/uploads/1/3/0/8/130874295/7e6993c6c38330.pdf
- https://cdn.shopify.com/s/files/1/0430/3477/1610/files/73612768686.pdf
- https://cdn.shopify.com/s/files/1/0432/4065/2960/files/24731934719.pdf
- https://cdn.shopify.com/s/files/1/0434/9673/4880/files/renuborak.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zawitowawipujeko.pdf
- https://cdn.shopify.com/s/files/1/0431/6109/2250/files/60958713768.pdf
- https://cdn.shopify.com/s/files/1/0434/3080/5669/files/nitalu.pdf
- https://cdn.shopify.com/s/files/1/0428/1594/6911/files/jogezemobus.pdf
- https://cdn.shopify.com/s/files/1/0433/0346/9221/files/72471292917.pdf
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/xalopusog.pdf
- https://cdn.shopify.com/s/files/1/0432/6404/9318/files/dutimexadutexivi.pdf
- https://cdn.shopify.com/s/files/1/0434/5734/7749/files/60528754706.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wesani.pdf
- https://cdn.shopify.com/s/files/1/0434/8480/7334/files/topokosurugu.pdf
- https://cdn.shopify.com/s/files/1/0433/5039/2984/files/latigejikit.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_off00006269.bin` `5240e0ad2d9b63fad79b075c714887261a5be0137a060c799404a6857b037404`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6269	4428 bytes
`font_01_sfnt_off0000717e.bin` `8cc14d8d0f5ebcb6c806da70883fe5378eb9f654205e9f4553308ca6a93413ff`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x717E	10248 bytes
`font_02_sfnt_off000094a4.bin` `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x94A4	4324 bytes

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