Malicious PDF — malware analysis report

Static analysis result for SHA-256 eadaedbd4f081dfa…

MALICIOUS

PDF

49.6 KB Created: 2020-08-24 08:22:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a483e66569f564d64f77cad9c0b0156 SHA-1: 1574b32881539db0de9c137c9305deacb65665a3 SHA-256: eadaedbd4f081dfad1f64bb046cfc55e429fd12e5a831f2a34ce7e09c2b5d1c0
120 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link and a large number of external PDF links, indicating a link farm. The primary malicious URL identified is ttraff.ru, which is known for redirecting to malicious content. The document body contains obfuscated text and a URL that appears to be part of the malicious redirection chain. No scripts were extracted from this sample.

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=calendario+clausura+2019+liga+mx+pdf
    • http://bobifed.mayaabasketball.com/uploads/1/3/1/4/131409546/baxezadiz.pdf
    • https://cdn.shopify.com/s/files/1/0432/8603/6635/files/minayo_pesquisa_qualitativa_livro.pdf
    • https://cdn.shopify.com/s/files/1/0432/8790/4411/files/27746679137.pdf
    • https://cdn.shopify.com/s/files/1/0437/7398/4919/files/zezugufizivikitunu.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/3574668504.pdf
    • https://cdn.shopify.com/s/files/1/0433/8008/0801/files/vopokila.pdf
    • https://cdn.shopify.com/s/files/1/0433/7916/3285/files/betaina_dosagem.pdf
    • https://cdn.shopify.com/s/files/1/0434/6393/4109/files/95385506843.pdf
    • https://cdn.shopify.com/s/files/1/0441/0068/1880/files/causas_del_alcoholismo_en_los_jovenes.pdf
    • https://cdn.shopify.com/s/files/1/0437/2732/3301/files/wings_of_fire_ebook_free_download.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a77.bin
c0ff268e74889f525fe0cdb9e6700e1907d13f8e7526870ca1061328b996e6a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A77 5848 bytes
font_01_sfnt_off00006e3c.bin
12ae6963c248e04f9d2a4ef778ba77fcca9d50423e452ef56253cedc38a339ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E3C 2616 bytes
font_02_sfnt_off000079d1.bin
a185a6f0dbcb75d01fe564e80f7daf5e50b93efbcc4ee791bf8346ca5833ebae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79D1 15912 bytes
font_03_sfnt_off0000a98b.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA98B 4324 bytes

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