Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a3efc76af31fdcd…

MALICIOUS

PDF

54.1 KB Created: 2020-08-02 12:52:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 57dbf4fda6f76a984f910f7ab4a1b446 SHA-1: 08b0ad0c55a98166136d247461544417b5fedcb0 SHA-256: 7a3efc76af31fdcdfe87c6c91cd958eadc5d6cff7302f9f892ab77a71e9a55a8
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is disguised with a keyword related to 'Dnd 5e all races'. The document also functions as a link farm, pointing to numerous other PDFs hosted on Shopify. The primary malicious activity observed is the redirection to the malicious URL, likely intended to deliver a further payload or phish for credentials.

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=dnd+5e+all+races
    • http://files.northamericancatholicecumenicalchurch.org/uploads/1/3/2/3/132303269/7434817.pdf
    • http://files.writerjessicaleigh.com/uploads/1/3/0/8/130873794/8e8f4688a4dcf.pdf
    • http://files.grantrestrict.com/uploads/1/3/0/8/130815026/gozamasomidin-tokajefi.pdf
    • http://files.higherlevelevents.co.uk/uploads/1/3/2/3/132302710/zomevekifike.pdf
    • https://cdn.shopify.com/s/files/1/0436/3495/0304/files/1029665433.pdf
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/mepawogikovenamufaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/4374/1083/files/90430967223.pdf
    • https://cdn.shopify.com/s/files/1/0434/2707/0104/files/how_many_gb_is_ark_survival_evolved.pdf
    • https://cdn.shopify.com/s/files/1/0432/6309/9040/files/lepajukalekos.pdf
    • https://cdn.shopify.com/s/files/1/0437/4413/3281/files/bavenejisifapotazak.pdf
    • https://cdn.shopify.com/s/files/1/0431/6649/8965/files/mamosanekimigojasotemavol.pdf
    • https://cdn.shopify.com/s/files/1/0433/0645/1094/files/72254258851.pdf
    • https://cdn.shopify.com/s/files/1/0428/7676/4327/files/83741161466.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/vebavibotokiwesafelugex.pdf
    • https://cdn.shopify.com/s/files/1/0432/7574/7484/files/4472852446.pdf
    • https://cdn.shopify.com/s/files/1/0431/7459/2668/files/christmas_brain_teasers_riddles_pdf.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_off00008c85.bin
9af3fdd0857e2ffb59dc0b5af2977395c4162057d5f345d968efa553bb8e0b20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C85 5056 bytes
font_01_sfnt_off00009dc7.bin
b412ffc223d8e2f07a4d913775650f7259f25e8fe25ae78338988115e5a34313		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DC7 14800 bytes

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