Malicious PDF — malware analysis report

Static analysis result for SHA-256 e296f20d3cd3b350…

MALICIOUS

PDF

55.0 KB Created: 2020-08-13 21:58:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 901695d25257d5219f20bfb9cf6b2ced SHA-1: 17db1357e34af2e0c74bc6273101bbb1dfe79572 SHA-256: e296f20d3cd3b35034a76dfcc81d96203005d8d42229b7e56644ef23029ffc3b
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=ancestry+family+tree+maker+2010'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious infrastructure. The presence of many other links to Shopify-hosted PDFs indicates a link farm strategy to improve search engine visibility for the malicious redirector.

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=ancestry+family+tree+maker+2010
    • http://files.ccvallevista.com/uploads/1/3/0/9/130969889/123c36e0739d0.pdf
    • http://files.pineviewottawa.com/uploads/1/3/0/7/130775977/8163553.pdf
    • http://files.dorabramden.com/uploads/1/3/1/3/131380547/dusopujibiwur-botibolaxana-zofivatiwabuxan-madafip.pdf
    • http://rulogi.eastmoreland100.com/uploads/1/3/1/3/131379730/kevudurebugamataj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9855/5043/files/53106551904.pdf
    • https://cdn.shopify.com/s/files/1/0429/9682/6273/files/xazenakimumur.pdf
    • https://cdn.shopify.com/s/files/1/0431/8714/2818/files/94586738771.pdf
    • https://cdn.shopify.com/s/files/1/0438/2484/0861/files/jedoziw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xasojikunu.pdf
    • https://cdn.shopify.com/s/files/1/0440/1994/1541/files/gonorowejebefi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zenafepejeviwasi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3459/0888/files/4678321434.pdf
    • https://cdn.shopify.com/s/files/1/0449/0631/5931/files/advantages_of_python_programming_language.pdf
    • https://cdn.shopify.com/s/files/1/0433/6658/0382/files/cub_cadet_lt1045_manual.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_off00009309.bin
326063d622b0afc11d78a100ccefaf58267517819e5676c5ee6b31e27fca717a
pdf-font-stream PDF embedded font (sfnt) at offset 0x9309 5508 bytes
font_01_sfnt_off0000a5b7.bin
0ff8973b283e68fa451f8f922cbb0ee2acb06706e84fa83f456e3ede05e958d3
pdf-font-stream PDF embedded font (sfnt) at offset 0xA5B7 11840 bytes