Malicious PDF — malware analysis report

Static analysis result for SHA-256 b45b9364f3603e42…

MALICIOUS

PDF

47.3 KB Created: 2020-08-02 09:52:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71bd17649d479e44f6ff9b6e49133377 SHA-1: 052df3bac6c58437f13d3526f00e70eff4b732a2 SHA-256: b45b9364f3603e42fea5fb72097a6478d1e014b1d80e9caa2a9016d25222bb92
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, including a critical link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=kodi+raspberry+pi'. This suggests the document's primary purpose is to redirect users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is a strong indicator of malicious intent.

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=kodi+raspberry+pi
    • http://files.justinecelebrant.co.uk/uploads/1/3/0/7/130776141/bodagaba.pdf
    • http://files.glassandsticks.com/uploads/1/3/1/4/131407547/kokimetoka.pdf
    • http://files.almeria-estates-and-realty.com/uploads/1/3/1/4/131437351/fefozo.pdf
    • http://files.mbbusinessjoint.com/uploads/1/3/1/8/131860378/milenafovaso.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/75370840821.pdf
    • https://cdn.shopify.com/s/files/1/0440/3675/1525/files/wivive.pdf
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/32815936297.pdf
    • https://cdn.shopify.com/s/files/1/0437/2863/4010/files/49590372039.pdf
    • https://cdn.shopify.com/s/files/1/0435/4893/4295/files/honda_gx200_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/0611/6511/files/78044326120.pdf
    • https://cdn.shopify.com/s/files/1/0429/2293/4435/files/99636485591.pdf
    • https://cdn.shopify.com/s/files/1/0432/0342/8510/files/tomopujedogomir.pdf
    • https://cdn.shopify.com/s/files/1/0430/0098/7801/files/3268329328.pdf
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/97198181518.pdf
    • https://cdn.shopify.com/s/files/1/0428/5458/0391/files/86063763508.pdf
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/26670687675.pdf
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/26696981208.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.

FilenameKindSourceSize
font_00_sfnt_off00006595.bin
47862203173d39f3ae1a551a710114254ab59a33e4987b4dae32d14c8eafc39f
pdf-font-stream PDF embedded font (sfnt) at offset 0x6595 5132 bytes
font_01_sfnt_off0000771b.bin
be395549b9f19f79b6f7f3aaadf4aadaafe2d8ae107feb906cc7a881a517724c
pdf-font-stream PDF embedded font (sfnt) at offset 0x771B 10104 bytes
font_02_sfnt_off000099f9.bin
682a406efcdf7dd49f9c494c129bca6394f160b3e372cc4ba493723cd6bcd7e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x99F9 16660 bytes