Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eee858d7886fede…

MALICIOUS

PDF

44.1 KB Created: 2020-08-03 02:49:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f2baac9fd900b5935927bd54fabe0a2 SHA-1: 36abd46f4fad44212edc824939d6d1cc150839f2 SHA-256: 7eee858d7886fede4171524b2dbc9a7af77f08cb257d1178281bba9be65ef321
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, directing users to 'https://ttraff.com/pify?keyword=flashing+dead+nokia+n9'. Additionally, it exhibits a PDF link farm heuristic, indicating an attempt to generate traffic through numerous SEO-optimized PDF links hosted on domains like cdn.shopify.com. No scripts were extracted from this sample, but the embedded links are sufficient to indicate a malicious redirection attempt.

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.com/pify?keyword=flashing+dead+nokia+n9
    • http://files.psychoslaughterman.com/uploads/1/3/2/6/132695551/f188d107ed3.pdf
    • http://files.natureswaypetcare.com/uploads/1/3/2/6/132681771/9049901.pdf
    • http://files.danielmckeon.net/uploads/1/3/1/4/131438180/7565198.pdf
    • https://cdn.shopify.com/s/files/1/0436/1325/7885/files/23724715048.pdf
    • https://cdn.shopify.com/s/files/1/0429/2139/4343/files/vexipenu.pdf
    • https://cdn.shopify.com/s/files/1/0428/5625/1555/files/51085689142.pdf
    • https://cdn.shopify.com/s/files/1/0429/3240/4380/files/95428263344.pdf
    • https://cdn.shopify.com/s/files/1/0437/2371/8824/files/88140218457.pdf
    • https://cdn.shopify.com/s/files/1/0428/4622/4540/files/51679385265.pdf
    • https://cdn.shopify.com/s/files/1/0431/9484/3298/files/34822320041.pdf
    • https://cdn.shopify.com/s/files/1/0436/3531/0752/files/empty_pages_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0434/9168/8610/files/93365996660.pdf
    • https://cdn.shopify.com/s/files/1/0437/6500/6494/files/gixegedig.pdf
    • https://cdn.shopify.com/s/files/1/0439/4260/9051/files/gupufinivutugemivov.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/33343449262.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_off00006f10.bin
0dbee18c59ebdfce008c4de1204fdf46c5943d2962bf19a9941774ec4cd0eb5a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F10 5168 bytes
font_01_sfnt_off000080a1.bin
4a9b96b58a9a6a3a0687dd039c9a1eef163cce306e1b7029b699087f78df88ed
pdf-font-stream PDF embedded font (sfnt) at offset 0x80A1 10352 bytes