Malicious PDF — malware analysis report

Static analysis result for SHA-256 c32adbb6eaae189e…

MALICIOUS

PDF

46.1 KB Created: 2020-08-23 00:24:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84836c834427bab9070bccaa236ead6f SHA-1: 67dbcf8bceae094b3f30bea3a0f09ec523704ce9 SHA-256: c32adbb6eaae189e586284a022352ae44395305b0996e0fab99621795277760e
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 points to a known malicious redirector, ttraff.ru, which is likely used to obscure the final malicious destination. The document body itself is heavily obfuscated and contains some of the URLs, suggesting a lure to generate traffic to these external resources. No scripts were extracted from this sample.

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=the+kooples+size+guide+uk+mens
    • http://files.dualworldconsulting.net/uploads/1/3/1/6/131637553/5944e40cfa9c.pdf
    • http://ripovud.timsguitar.net/uploads/1/3/1/3/131378898/gamus-sedexopusomuzap.pdf
    • http://files.meglelvis.com/uploads/1/3/0/8/130873708/43aa7a15511.pdf
    • http://files.terrariumhairspa.com/uploads/1/3/1/1/131164383/vonawuliso_jekudat.pdf
    • http://files.everythingalcoholink.com/uploads/1/3/1/1/131164043/zisizugif_zadojufav.pdf
    • https://cdn.shopify.com/s/files/1/0432/3147/7922/files/china_gate_movie_songs_320kbps.pdf
    • https://cdn.shopify.com/s/files/1/0432/0460/8155/files/15249754045.pdf
    • https://cdn.shopify.com/s/files/1/0428/5313/8591/files/94091829657.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/duzibuwusupamodugibeboz.pdf
    • https://cdn.shopify.com/s/files/1/0439/3120/5787/files/tau_codex_warhammer_40k_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0440/9245/7112/files/manual_drip_coffeemaker.pdf
    • https://cdn.shopify.com/s/files/1/0431/1767/4656/files/41301650318.pdf
    • https://cdn.shopify.com/s/files/1/0435/7206/8520/files/moran_amarna_letters.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/37336216524.pdf
    • https://cdn.shopify.com/s/files/1/0434/5190/8249/files/percy_jackson_the_sea_of_monsters.pdf
    • https://cdn.shopify.com/s/files/1/0432/4232/4125/files/optics_and_atomic_structure_notes.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_off00006d39.bin
cd51e696dc8aee1d4967bbdafc45afb799293e6b7400e48933cef1bc5179e2fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D39 5128 bytes
font_01_sfnt_off00007ea0.bin
56cb4c1164cc322f5063949978e99dfd6210cd7d5a0ecc5e5c0bf7deddeef799
pdf-font-stream PDF embedded font (sfnt) at offset 0x7EA0 14632 bytes