Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed0a47f963db1ed9…

MALICIOUS

PDF

45.5 KB Created: 2020-08-31 23:33:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 541d67982f7ac23f0b97f10f51289444 SHA-1: 6cf360548b639ddd33336fcae09653d35bfdb1b7 SHA-256: ed0a47f963db1ed95988935fc7ae3de3e6e676f925d728fdd60cf396241094da
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/wix?keyword=avery+mailing+label+template+30+per+sheet`. This URL is likely used to deliver a malicious payload or redirect to a phishing site. The document also contains a large number of external links, many pointing to `static.usrfiles.com`, suggesting a link farm or SEO poisoning attempt to increase visibility. 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.cc/wix?keyword=avery+mailing+label+template+30+per+sheet
    • https://static.usrfiles.com/ugd/b8c837_ea4791ef89ca4ce79789d26a538d9868.pdf
    • https://static.usrfiles.com/ugd/de60da_99eb1255c9cb4f7a945c084955ab170f.pdf
    • https://static.usrfiles.com/ugd/0c4177_d14cc5d6ea564f2f888886ac53a39465.pdf
    • https://static.usrfiles.com/ugd/b8c837_ee07d8dff7c54610bdfb3dfd0d904837.pdf
    • https://static.usrfiles.com/ugd/32acb1_02a584113ee14f8fadd70d6f85d8743a.pdf
    • https://static.usrfiles.com/ugd/a298ce_0fef6fe9a6f548398e22eea2ea3e30b8.pdf
    • https://static.usrfiles.com/ugd/3aca14_86bf27ebe10543eeb06d58e00e53763e.pdf
    • https://cdn.shopify.com/s/files/1/0431/0538/6657/files/ador_fontech_welding_electrodes_catalogue.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kewosa.pdf
    • https://cdn.shopify.com/s/files/1/0428/7420/8415/files/pejadoropixonarirega.pdf
    • https://cdn.shopify.com/s/files/1/0440/1420/7134/files/93183345908.pdf
    • https://cdn.shopify.com/s/files/1/0429/4773/9811/files/jenimudotolidavuluwidew.pdf
    • https://static.usrfiles.com/ugd/b8c837_d135705168cd4abcae0b1b26b3c28bfb.pdf
    • https://static.usrfiles.com/ugd/b8c837_b6119add9b6548a69bda4b1565afe2f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_4428a6865b444c5a8e2229b284c24979.pdf
    • https://static.usrfiles.com/ugd/b910ae_4980e0732c524486b6100cb0d0829e27.pdf
    • https://static.usrfiles.com/ugd/04e6f9_a38dd6a8ca7642fe8d19911f9c979281.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_off0000639b.bin
acd150c958c00bb360b2df37e31ad5ab95ec70dfc3e780f5ef7877485d8cab1b
pdf-font-stream PDF embedded font (sfnt) at offset 0x639B 5508 bytes
font_01_sfnt_off0000761c.bin
5b2683bbc3334414413d3bf51cc3846f5589ff801922fdd277c94b59b0274ec2
pdf-font-stream PDF embedded font (sfnt) at offset 0x761C 10660 bytes
font_02_sfnt_off00009a95.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A95 4324 bytes