Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d8ed38dc3e75dff…

MALICIOUS

PDF

45.9 KB Created: 2020-07-28 05:39:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7961e1e4f8518c942ab33c874293d2d6 SHA-1: 521b907ddb1e0f17108b8412be587b28c9dd5016 SHA-256: 1d8ed38dc3e75dff702c8a0a4e8790397f1b66d8920bde971d6ffc2f1f11cecf
120 Risk Score

Malware Insights

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

The PDF file contains a lure for a "direct deposit form" and is heavily populated with external PDF links, many of which point to a redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags a link to ttraff.cc, indicating a malicious redirector infrastructure. The PDF_SEO_LINK_FARM heuristic further supports the idea that this document is part of a link farm designed to attract traffic, likely for malicious purposes.

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=ahola+direct+deposit+form
    • http://files.vestedenergy.com/uploads/1/3/1/3/131398334/33257.pdf
    • http://files.curbarridgeascofartistsandpainters.com/uploads/1/3/0/9/130969514/gigoreje.pdf
    • http://files.friendshipforcewmich.org/uploads/1/3/2/7/132740285/367bd364.pdf
    • http://files.radscalems.com/uploads/1/3/1/4/131454620/f3f04baf.pdf
    • http://files.breathelaughlove.com/uploads/1/3/0/7/130738652/fd6a64f4.pdf
    • http://files.vestedenergy.com/uploads/1/3
    • https://cdn.shopify.com/s/files/1/0436/1709/1744/files/64315848045.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/duzibuwusupamodugibeboz.pdf
    • https://cdn.shopify.com/s/files/1/0431/3110/9538/files/24236269642.pdf
    • https://cdn.shopify.com/s/files/1/0433/4298/7422/files/banarutevoserumonelajoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/4351/1702/files/pimajagajizujir.pdf
    • https://cdn.shopify.com/s/files/1/0433/9531/7911/files/56979701887.pdf
    • https://cdn.shopify.com/s/files/1/0432/5425/1670/files/36024638891.pdf
    • https://cdn.shopify.com/s/files/1/0432/6014/9910/files/vezedikizatojidatem.pdf
    • https://cdn.shopify.com/s/files/1/0431/0515/7284/files/2053559276.pdf
    • https://cdn.shopify.com/s/files/1/0428/4760/0796/files/lopagut.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_off00007614.bin
00037741c833067adae5a14023f755964674a93afba969b558f366cb48103ec4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7614 5064 bytes
font_01_sfnt_off0000874a.bin
b26afd0e529751790d38ffd229ea97546fb87da4ebf2d930610976e1002e4bf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x874A 10368 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.