Malicious PDF — malware analysis report

Static analysis result for SHA-256 339a58a8ba409d67…

MALICIOUS

PDF

48.5 KB Created: 2020-08-20 03:24:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62ac917e57bf31511c1b36e72a2d3a02 SHA-1: e6177431d5e54ac21fe4efe97bb785c1fd3e08ba SHA-256: 339a58a8ba409d676940dc67a62c56be2fe27472aeec2c7c6d4c25210d980495
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=active+directory+windows+server+2012+tutorial+pdf'. This URL is embedded within the document body, suggesting a social engineering lure to trick the user into clicking it. The file also contains a large number of embedded links, many pointing to Shopify domains, which is indicative of a link farm designed to improve SEO for 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.com/pify?keyword=active+directory+windows+server+2012+tutorial+pdf
    • http://files.atmosair-singapore.com/uploads/1/3/1/4/131438056/laluje_rixivafelubono_fevawoperowej_nidogu.pdf
    • http://files.mckinneypressurewashing.com/uploads/1/3/1/4/131438539/toxekunemo-kezapu.pdf
    • http://files.equinox-partners.bg/uploads/1/3/1/4/131437813/xugorod.pdf
    • http://files.thewarsoftherosescatalogue.com/uploads/1/3/1/0/131070051/fef7ff5848f26.pdf
    • https://cdn.shopify.com/s/files/1/0430/9381/9541/files/99641963240.pdf
    • https://cdn.shopify.com/s/files/1/0435/8311/1336/files/old_knight_s_flask.pdf
    • https://cdn.shopify.com/s/files/1/0463/1049/0277/files/android_browser_with_integrated_flash_player.pdf
    • https://cdn.shopify.com/s/files/1/0432/3373/8911/files/kezewip.pdf
    • https://cdn.shopify.com/s/files/1/0439/4346/1032/files/36370124401.pdf
    • https://cdn.shopify.com/s/files/1/0432/2027/1264/files/biodata_form_for_job_application_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/3414/0056/files/dazekuxek.pdf
    • https://cdn.shopify.com/s/files/1/0430/3929/3593/files/poultry_business_plan_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2104/files/33107523652.pdf
    • https://cdn.shopify.com/s/files/1/0437/7860/5218/files/1986_honda_rebel_250.pdf
    • https://cdn.shopify.com/s/files/1/0461/6585/2312/files/71985014604.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d21.bin
5c183b73063de586bd3a5283fbd807b92e3197436c982a8307bfe8cb2232155c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D21 3808 bytes
font_01_sfnt_off00007aad.bin
071817085faffbc20cf39474c7b536402f560ebc3cbe49c4e08bb5b927919df4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AAD 5720 bytes
font_02_sfnt_off00008e54.bin
54e25411392630bc94ad3b84f5cae9fbcf7f725b863a0a15ff5a183addb3a0b4
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E54 10624 bytes