Malicious PDF — malware analysis report

Static analysis result for SHA-256 4eb4eaa4fe35d6db…

MALICIOUS

PDF

52.1 KB Created: 2020-08-13 22:00:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 25bc35e820f22c381ae490fe2a44f2db SHA-1: 5c17431a21b937fc2301d06c38e5f16218565680 SHA-256: 4eb4eaa4fe35d6db22164823e13872a984232e5f910e4494da68d2c384da3493
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a mass external link farm, with a primary URL directing to a malicious redirector disguised as an ITIL CMDB template. The heuristic firings indicate the presence of malicious redirector links and a link farm, suggesting a phishing or scam attempt. The document body also contains the malicious URL and other benign-looking PDF links, likely to obscure the malicious intent. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • 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.com/pify?keyword=itil+cmdb+template
    • http://bebizak.portfolio-people.com/uploads/1/3/1/4/131407148/5a259b1189f8e.pdf
    • http://files.buy.climbstation.com/uploads/1/3/1/6/131636988/lajozom.pdf
    • http://files.pelebonitaspa.org/uploads/1/3/0/7/130738850/negevotusegax_wuzakunemenebov.pdf
    • https://cdn.shopify.com/s/files/1/0431/5480/0802/files/ligoziwekedurazobikati.pdf
    • https://cdn.shopify.com/s/files/1/0436/9927/3882/files/25637839412.pdf
    • https://cdn.shopify.com/s/files/1/0434/5249/8070/files/nitaxojazosureme.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78682713185.pdf
    • https://cdn.shopify.com/s/files/1/0431/2583/3884/files/dabujukipoviteri.pdf
    • https://cdn.shopify.com/s/files/1/0434/4525/6344/files/famuvuxu.pdf
    • https://cdn.shopify.com/s/files/1/0428/3239/6447/files/vocabulaire_anglais_financier.pdf
    • https://cdn.shopify.com/s/files/1/0436/7079/8489/files/16542768300.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2691/files/ketozizaj.pdf
    • https://cdn.shopify.com/s/files/1/0433/7188/8803/files/loxezafij.pdf
    • https://cdn.shopify.com/s/files/1/0432/6942/3257/files/kanetekokalexig.pdf
    • https://cdn.shopify.com/s/files/1/0433/8404/5719/files/vogerixi.pdf
    • https://cdn.shopify.com/s/files/1/0450/1949/6606/files/regofupomamazuriruputatim.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_off00008d65.bin
7b919f8dab1dad3237a4b7abfed0e4fcd5ed334e9fb49d5f8c3d91cea53d87eb
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D65 5020 bytes
font_01_sfnt_off00009e58.bin
c852f4c49396f460d582108f74339a11065972faf429b14abdf59378ed5e2a52
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E58 11028 bytes