PDF malware analysis — malicious · c92dd4fed47794ff

MALICIOUS

PDF

50.2 KB Created: 2020-08-08 01:13:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6a2f0d605994a722592fbd83e69d68b5 SHA-1: 6000df523316de2e7772ba8647e6d45fa45f1c6e SHA-256: c92dd4fed47794ffd5324d1efb8429ede38be15102d6060cc97d7082b76b38f7

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link farm and a redirector URL, indicating a phishing or malicious content delivery attempt. The document body, though heavily obfuscated, contains text related to English exam exercises and the redirector URL, suggesting a lure. The primary malicious IOC is the redirector URL which leads to further malicious infrastructure.

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=matura+angielski+%25C4%2587wiczenia+leksykalno+gramatyczne+pdf
- http://files.sarahlucerofitness.com/uploads/1/3/2/7/132741535/3120698.pdf
- http://files.rawseries.org/uploads/1/3/1/6/131606605/9964294.pdf
- http://files.ryladistrict7255.com/uploads/1/3/1/3/131383823/zuvun.pdf
- http://files.swealaska.org/uploads/1/3/1/6/131637257/6fd528d301f55d.pdf
- http://files.spiffynaturals.com/uploads/1/3/1/4/131437660/6901956.pdf
- https://cdn.shopify.com/s/files/1/0439/3467/9208/files/vaxenixozez.pdf
- https://cdn.shopify.com/s/files/1/0433/9469/5318/files/nikukidepa.pdf
- https://cdn.shopify.com/s/files/1/0431/0876/1751/files/xexenekipotopa.pdf
- https://cdn.shopify.com/s/files/1/0439/3598/9915/files/fofudavose.pdf
- https://cdn.shopify.com/s/files/1/0430/3477/1610/files/23580449254.pdf
- https://cdn.shopify.com/s/files/1/0436/9252/3675/files/chemistry_in_context_7th_edition_download.pdf
- https://cdn.shopify.com/s/files/1/0435/1374/1472/files/99138938681.pdf
- https://cdn.shopify.com/s/files/1/0433/3849/8206/files/jegadanoxifizogenobinez.pdf
- https://cdn.shopify.com/s/files/1/0430/6360/7445/files/18634203119.pdf
- https://cdn.shopify.com/s/files/1/0428/1391/5303/files/57774268791.pdf
- https://cdn.shopify.com/s/files/1/0439/3716/9576/files/81581499376.pdf
- https://cdn.shopify.com/s/files/1/0432/2469/4942/files/90321796114.pdf
- https://cdn.shopify.com/s/files/1/0432/7427/2924/files/nogujudivijipumap.pdf
- https://cdn.shopify.com/s/files/1/0432/2181/1362/files/51184304943.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_off00007759.bin` `3b4a4620eefce680d60d0bc320ea3f82fd61b0892a7a9fdd7f593be04abbf5ae`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7759	5924 bytes
`font_01_sfnt_off00008b62.bin` `8a33752ecbabfe8d7a9b3b9d329cd9998cff376e502d4b0dba4f2027329f24e0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B62	15064 bytes

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