Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a5a7472a55f1235…

MALICIOUS

PDF

42.2 KB Created: 2020-08-20 22:27:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 19e651377e49e0c7a493324111596ffe SHA-1: 090710b8ca5357afb6ecbd3ab36fcb54096a87d5 SHA-256: 2a5a7472a55f12357e7a8313f8b69b9080ba219807caf62eaf4d8fb839530fdb
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, suggesting a coordinated effort to manipulate search engine results or distribute content. The presence of a 'download button' lure further supports a malicious intent to redirect the user. The document body itself is heavily obfuscated but contains the redirector URL, reinforcing the attack pattern.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=fund+fact+sheet+design
    • http://vurovug.noelcustoms.shop/uploads/1/3/0/7/130738720/947f542f149235.pdf
    • http://kozuzuno.bzdickstudio.com/uploads/1/3/1/3/131379730/kabub.pdf
    • http://files.tericawright.com/uploads/1/3/1/8/131857920/wozojego.pdf
    • https://cdn.shopify.com/s/files/1/0428/5969/2198/files/88544045947.pdf
    • https://cdn.shopify.com/s/files/1/0433/5756/9189/files/muludiguriwuvot.pdf
    • https://cdn.shopify.com/s/files/1/0429/3269/9302/files/giweme.pdf
    • https://cdn.shopify.com/s/files/1/0438/8575/6568/files/biology_notes_for_neet_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/80940548923.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/54388057391.pdf
    • https://cdn.shopify.com/s/files/1/0444/6437/3927/files/dark_anime_wallpaper_hd_android.pdf
    • https://cdn.shopify.com/s/files/1/0434/3290/2823/files/february_days_python.pdf
    • https://cdn.shopify.com/s/files/1/0437/9466/1538/files/new_tamil_movies_in_tamilrockers_2018.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_off000066e9.bin
8aec093b7608a9f2fdd90ce9e8cb49d948af75d76411ce59d02f4b2ff04c4189		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66E9 5108 bytes
font_01_sfnt_off00007846.bin
2094d1944e487bdb22aca5c08d2f6f48c83ddea70950c6aa857bcc74a66fb5ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7846 10528 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.