Malicious PDF — malware analysis report

Static analysis result for SHA-256 972cc09e01fcaab3…

MALICIOUS

PDF

60.2 KB Created: 2020-08-03 23:41:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d8d2971f01109eda870f6217f48ce26 SHA-1: c7dc0eff9c2daf55ea0e1a46c2b025c8d2bc5768 SHA-256: 972cc09e01fcaab34bb591db27b4cd753ece35e3ac77f5b390c8bdfef11a5e65
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. This URL is presented within the document body, disguised as a link to metabolic syndrome articles. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious URL is the redirector, likely used to funnel victims to a further stage of the attack.

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=metabolic+syndrome+articles+pdf
    • http://files.ziqixie.com/uploads/1/3/1/4/131437657/890e223757a3f.pdf
    • http://files.ubswpc.com/uploads/1/3/0/7/130776088/romefowexegotis-fevejuwi-nomirom-nopesusobi.pdf
    • http://files.teamaudioeye.com/uploads/1/3/1/4/131406563/katujijuxo.pdf
    • https://cdn.shopify.com/s/files/1/0427/7708/4070/files/davem.pdf
    • https://cdn.shopify.com/s/files/1/0429/5213/0716/files/91087114261.pdf
    • https://cdn.shopify.com/s/files/1/0432/8246/4928/files/minapotubukivuxuwi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2861/9168/files/befunosunoluturalu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4062/8120/files/35658862463.pdf
    • https://cdn.shopify.com/s/files/1/0434/8978/8069/files/xosiwed.pdf
    • https://cdn.shopify.com/s/files/1/0439/8222/5566/files/sesudejedupi.pdf
    • https://cdn.shopify.com/s/files/1/0434/1946/7927/files/zatesexolikotasute.pdf
    • https://cdn.shopify.com/s/files/1/0433/8260/3927/files/66722885574.pdf
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/tikiremisenipasa.pdf
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/38161690727.pdf
    • https://cdn.shopify.com/s/files/1/0430/7098/0247/files/59604106364.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_off0000adbf.bin
88563fc31929f8a647ff6bb8f7caf315d259cf9cfb5b8ff37277ad624f1cd4d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADBF 5548 bytes
font_01_sfnt_off0000c091.bin
b13cb2d5e282cfae7085477390eb424509b68387d9033d53368f0ba14a7d7b5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC091 10384 bytes

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