Malicious PDF — malware analysis report

Static analysis result for SHA-256 f21cc339f9caa47c…

MALICIOUS

PDF

38.1 KB Created: 2020-08-30 08:55:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57bbf340db49bc1b932943f6a4515b9b SHA-1: 5a7a3fae2d71d259df4f8ef39b85c2504babc120 SHA-256: f21cc339f9caa47cca20796fda09fcb093a4afe0e5bb141382c47c6531c0f9bd
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the text "Fotbit charge 2" and the malicious URL. This suggests the document is designed to trick the user into clicking the link, likely leading to a phishing or malware download site.

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/wix?keyword=fotbit+charge+2
    • https://cdn.shopify.com/s/files/1/0432/6657/2452/files/bowirasibupaxizal.pdf
    • https://cdn.shopify.com/s/files/1/0430/4217/7181/files/iletiim_ders_notlar.pdf
    • https://cdn.shopify.com/s/files/1/0440/2964/0854/files/2009_volkswagen_tiguan_owners_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/bivogosogalubewamonivuw.pdf
    • https://cdn.shopify.com/s/files/1/0450/2824/5654/files/99279429673.pdf
    • https://static.usrfiles.com/ugd/01e791_8aad5caf8f7a405eb514bd413868685f.pdf
    • https://static.usrfiles.com/ugd/b8c837_fbecc9a1d58c46e9b45e70e6f34fd5c9.pdf
    • https://static.usrfiles.com/ugd/8cbfce_a06052f29b7f4486b29a7c82489218f8.pdf
    • https://static.usrfiles.com/ugd/b8c837_83ed7fecf43645cf9dda821df40c48f0.pdf
    • https://static.usrfiles.com/ugd/b8c837_4a646338c86f4a83885676201460208a.pdf
    • https://static.usrfiles.com/ugd/95089d_d603b146536d40a8bd796fc383dcda7b.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72619586694.pdf
    • https://cdn.shopify.com/s/files/1/0432/1198/0964/files/amazon_carding_tutorial_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/9712/8088/files/ruzobagi.pdf
    • https://cdn.shopify.com/s/files/1/0434/3490/1671/files/magegejosukekadovi.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.

FilenameKindSourceSize
font_00_sfnt_off000058e8.bin
860b6bd01837fb687d35933dada39f1f52031f297c5613d5048bf744d3722bd6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58E8 5076 bytes
font_01_sfnt_off00006a2a.bin
c28416cb6854b516f092145d335f593151f4dbeaea6fb18147ff95902bc38ce3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2A 10024 bytes

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