Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d9a19d9003bef0…

MALICIOUS

PDF

43.9 KB Created: 2020-08-05 16:52:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 773a62908ae39c33ba499be27bcf3aa4 SHA-1: a9496138ba1e022261dea40a71e5fd62bfa3b64f SHA-256: c0d9a19d9003bef0c33800250d1c3b49ee892207fb1b2daccf301f0a0bd1f50f
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.cc/pify?keyword=causes+of+unemployment+in+uganda+pdf', points to a known malicious redirector. The document body, though heavily obfuscated, also contains URLs, reinforcing the malicious redirection pattern. The primary attack vector appears to be luring users to external malicious sites.

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.cc/pify?keyword=causes+of+unemployment+in+uganda+pdf
    • http://files.fountainheadrandm.com/uploads/1/3/1/3/131378953/a202df6.pdf
    • http://files.sweetmaplecafe.co/uploads/1/3/1/6/131606798/5743627.pdf
    • http://files.cornishquest.org/uploads/1/3/0/7/130739039/xileriralomi-finotarofiginek-gixesife.pdf
    • http://files.perkinsscience.com/uploads/1/3/1/6/131636965/goxizojuzilu.pdf
    • https://cdn.shopify.com/s/files/1/0428/4583/1335/files/subl_command_not_found.pdf
    • https://cdn.shopify.com/s/files/1/0439/1780/3675/files/alternatives_to_premiere_pro.pdf
    • https://cdn.shopify.com/s/files/1/0433/7795/0870/files/wapakodejajorunukodeti.pdf
    • https://cdn.shopify.com/s/files/1/0435/3739/9960/files/25057493903.pdf
    • https://cdn.shopify.com/s/files/1/0434/6406/5188/files/wavaz.pdf
    • https://cdn.shopify.com/s/files/1/0428/2076/3804/files/pibewulukezifivatifoso.pdf
    • https://cdn.shopify.com/s/files/1/0434/5882/2296/files/zutowebimixosu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3532/8663/files/46130477993.pdf
    • https://cdn.shopify.com/s/files/1/0433/8620/8406/files/75379708296.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fezusagofetivori.pdf
    • https://cdn.shopify.com/s/files/1/0428/6477/1238/files/xetale.pdf
    • https://cdn.shopify.com/s/files/1/0427/4490/5884/files/zawil.pdf
    • https://cdn.shopify.com/s/files/1/0430/5253/1869/files/riravabesowa.pdf
    • https://cdn.shopify.com/s/files/1/0438/3303/2864/files/3475157936.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_off00006bfe.bin
756027b8b2c74a868e7440d761664370d1a5f01d769e39cfca53d8a61b276d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BFE 5272 bytes
font_01_sfnt_off00007de9.bin
d704680c8be71b9f12b84588ad786b884c18828f9bba187749de090ae07ad468		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE9 10724 bytes

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