Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bc822daebc3ff36…

MALICIOUS

PDF

43.9 KB Created: 2020-08-09 19:23:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89ac083c932294c909f022ff0413146f SHA-1: 77529741c42d1d57dfdf3f6185730f2242c9efe3 SHA-256: 1bc822daebc3ff36b448b4a0e2a4543e994ee07e5c4cf7418b9cba7502205f4d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to Shopify domains hosting other PDFs. One critical heuristic firing indicates a direct link to a known malicious redirector, ttraff.cc. This suggests the document is designed to lure users into clicking malicious links, potentially leading to further compromise. No scripts were extracted, and the document body is heavily obfuscated.

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=cateye+strada+manual+pdf
    • http://files.rosannavanmierlo.com/uploads/1/3/0/7/130775126/zebemekaxud-dobezerejarosop-nexumejosar.pdf
    • http://files.bakeitsg.com/uploads/1/3/0/8/130814298/piwojejogefob.pdf
    • http://files.universityroadhouse.com/uploads/1/3/1/6/131637953/1576177.pdf
    • https://cdn.shopify.com/s/files/1/0429/2473/6678/files/hernia_hiatal_cirugia.pdf
    • https://cdn.shopify.com/s/files/1/0429/9977/5381/files/bebogaxuzinepurorekimonaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/6073/1808/files/verijavira.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/varoxugu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/98863454948.pdf
    • https://cdn.shopify.com/s/files/1/0436/0749/0717/files/circuit_breaker_labels.pdf
    • https://cdn.shopify.com/s/files/1/0440/5559/3110/files/malerinuzutilifixe.pdf
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/bofinobemalowujolegap.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/didonofodesejosuzetidinu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/41215542384.pdf
    • https://cdn.shopify.com/s/files/1/0450/4797/1990/files/shin_chan_in_hindi.pdf
    • https://cdn.shopify.com/s/files/1/0445/5910/6212/files/78595926761.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/toro_snowblower_repair.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_off000060ae.bin
4698232b5c1194489f49dbb8b1701b59baa381e5e6a0bd6566ddce5337bd80a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60AE 5196 bytes
font_01_sfnt_off0000724b.bin
f01f1fceb0e28345e377bd47d3b1ed0b07d0a23b1893aa5d56f3ac81487a152f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x724B 15316 bytes

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