PDF malware analysis — malicious · d09202a2ad2493c6

MALICIOUS

PDF

48.3 KB Created: 2020-08-01 06:45:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bb6669370e833e29f3c2625281f0ab6d SHA-1: 0fbbb0aa2b95e40189eb48fcf9d26ab7068fabc2 SHA-256: d09202a2ad2493c64a8da28ef10d65953dea8aef45c3c7bbdaece9843e7dda88

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains the string 'Downloading ios 8. 3' and the malicious URL, suggesting a lure to trick users into clicking the link. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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=downloading+ios+8.+3
- http://files.aakashsinghrathore.com/uploads/1/3/0/7/130740205/ab1717c1e72.pdf
- http://files.paula-mcdermid.com/uploads/1/3/1/3/131380052/4634852.pdf
- http://files.evergreenhomeconcierge.com/uploads/1/3/0/8/130814513/lireruwipe.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gobobuxewinunegurugita.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/77603652905.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/10809735118.pdf
- https://cdn.shopify.com/s/files/1/0428/8774/1599/files/doginixipalasekuv.pdf
- https://cdn.shopify.com/s/files/1/0432/4953/3088/files/pinuxigevigifosareroxaw.pdf
- https://cdn.shopify.com/s/files/1/0431/7547/7414/files/51084734309.pdf
- https://cdn.shopify.com/s/files/1/0435/8995/9843/files/kajububoruterutop.pdf
- https://cdn.shopify.com/s/files/1/0427/7259/4844/files/tuzixil.pdf
- https://cdn.shopify.com/s/files/1/0431/0381/3781/files/gumigonenazewumik.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vevisip.pdf
- https://cdn.shopify.com/s/files/1/0428/2109/1484/files/kisorezikejowi.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vukabisozudetilo.pdf
- https://cdn.shopify.com/s/files/1/0432/9432/6949/files/wabozozefukazewu.pdf
- https://cdn.shopify.com/s/files/1/0429/1988/7001/files/34005552438.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_off00006a39.bin` `a46e4505cadb1da2dae9214ff02233d4f87a94ec4985d306477156251558e928`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A39	5376 bytes
`font_01_sfnt_off00007cb0.bin` `b71e560bff37d649e9407352193a121c8a622061fb0be9260e059d870c3f57a5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7CB0	9968 bytes
`font_02_sfnt_off00009ef8.bin` `5338b60dac2ddcc9fbf81734882903060897ff8c18563aad6864a581beec55c6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9EF8	16068 bytes

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