Malicious PDF — malware analysis report

Static analysis result for SHA-256 bceabcf2751f6d48…

MALICIOUS

PDF

76.1 KB Created: 2020-08-13 21:29:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75afccd3feccc33afefa28ba5cfdea5e SHA-1: 4cf5ff20033091ae20b3c39cfbc563f41d3d8d83 SHA-256: bceabcf2751f6d488c022c5b564279bdd6d813e9c88ff105cc855013136ac197
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating it's a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=libertarian+party+platform+gun+control'. Another critical heuristic identified it as a PDF link farm, with 28 generated SEO PDF links, many hosted on cdn.shopify.com. The document body contains garbled text but also includes the same suspicious URL and several Shopify URLs, suggesting a coordinated effort to manipulate search results or lure users to malicious content.

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=libertarian+party+platform+gun+control
    • http://nojevobux.angusyoungroofing.co.uk/uploads/1/3/2/6/132680813/7212210.pdf
    • http://files.wormfoodforthough.net/uploads/1/3/0/9/130969243/e9c22e71c4f8.pdf
    • http://files.thegarbagefire.club/uploads/1/3/0/8/130813521/rumapewakusikib.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuvitew.pdf
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/lezinanuduv.pdf
    • https://cdn.shopify.com/s/files/1/0430/1763/3949/files/sodiremajuwivudovinidetes.pdf
    • https://cdn.shopify.com/s/files/1/0439/2747/0235/files/givagilizuxi.pdf
    • https://cdn.shopify.com/s/files/1/0430/9729/2967/files/wumeni.pdf
    • https://cdn.shopify.com/s/files/1/0434/5040/0928/files/applications_of_photogrammetry_in_civil_engineering.pdf
    • https://cdn.shopify.com/s/files/1/0427/6381/3020/files/22571922024.pdf
    • https://cdn.shopify.com/s/files/1/0428/9213/2508/files/tasevetozijazofizidumapuv.pdf
    • https://cdn.shopify.com/s/files/1/0437/8905/8206/files/towozadol.pdf
    • https://cdn.shopify.com/s/files/1/0436/8180/8549/files/75667316788.pdf
    • https://cdn.shopify.com/s/files/1/0432/3776/9383/files/kavewuxediguxotip.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_off00007c02.bin
d81b50207cbbded50afe53668aaff51d4c778dba2deff0153a76bcf3b533795c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C02 31108 bytes
font_01_sfnt_off0000d3d3.bin
0b8c765625cc179e997f296d6635e9daac6655ba823efe55435600e965b8c671
pdf-font-stream PDF embedded font (sfnt) at offset 0xD3D3 5340 bytes
font_02_sfnt_off0000e5f3.bin
552a15708e465d4e0c5d215eef4ad40beb554001a3d186ce121e53c4594d9ec7
pdf-font-stream PDF embedded font (sfnt) at offset 0xE5F3 11772 bytes
font_03_sfnt_off00010cd9.bin
532315dfdc59b350d447ad91845dd8cc72a836e684f536ab9a4305dc5b53fb8e
pdf-font-stream PDF embedded font (sfnt) at offset 0x10CD9 16204 bytes