Malicious PDF — malware analysis report

Static analysis result for SHA-256 40ae8a49909929cd…

MALICIOUS

PDF

43.1 KB Created: 2020-08-04 15:16:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 671a45721d431cd647a9f8f46fead3e3 SHA-1: 57bf47d72e47cc65a7c8c9986eb9f8d39bb21a60 SHA-256: 40ae8a49909929cd2ca26b9e3080422b197ff7109294417e7c011d7c5847c0e7
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to deliver a secondary payload. The document body and embedded links suggest a lure related to automotive products, specifically Castrol Edge. The presence of a large number of external PDF links indicates a link farm SEO tactic, likely to improve the ranking of the malicious redirector. No scripts were extracted, but the primary malicious action is the redirection to a harmful URL.

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=castrol+edge+supercar+titanium+fst+10w+60+pdf
    • http://files.thelakeerieperch.com/uploads/1/3/0/7/130739628/ziwijerusidu-vofixexa-xizemetolumawa-benoxuxex.pdf
    • http://files.greeknificent.com/uploads/1/3/1/6/131606027/lalepoxisodifa_nilosepoluwofe_fotonelubeki.pdf
    • http://files.naiadflowyoga.com/uploads/1/3/0/8/130814346/xeduwiraxesojidezi.pdf
    • http://files.marcusajohnson.com/uploads/1/3/1/3/131381681/razolorapol-mimufizaz.pdf
    • http://files.patriciacarriganartist.com/uploads/1/3/1/8/131856108/pezerozabegatunanus.pdf
    • https://cdn.shopify.com/s/files/1/0435/1547/8176/files/73075384568.pdf
    • https://cdn.shopify.com/s/files/1/0434/6360/6429/files/dexosog.pdf
    • https://cdn.shopify.com/s/files/1/0432/3885/0728/files/fuvenerumi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6557/2514/files/75318571040.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8914/files/suvesinuxususara.pdf
    • https://cdn.shopify.com/s/files/1/0431/6299/2799/files/tuxonesuno.pdf
    • https://cdn.shopify.com/s/files/1/0427/9740/0223/files/signals_and_systems_roberts_2nd_edition.pdf
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/51888911277.pdf
    • https://cdn.shopify.com/s/files/1/0433/0625/4494/files/felogepovo.pdf
    • https://cdn.shopify.com/s/files/1/0436/3013/3406/files/vowepisegotariwutanaz.pdf
    • https://cdn.shopify.com/s/files/1/0430/2897/1674/files/nerubuxadagojusivujas.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_off00005c09.bin
fb7db4b301855bf00d742613b85c5c2c6d03ef65898bdfea36ba6fc368eceaa3
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C09 5820 bytes
font_01_sfnt_off00006fda.bin
4a8037af88b8c3928cbaaebb39f5f9472201ba5834783f2370bd74e7d1350435
pdf-font-stream PDF embedded font (sfnt) at offset 0x6FDA 15616 bytes