Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4e111a69267b8f7…

MALICIOUS

PDF

36.4 KB Created: 2020-08-29 01:15:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ec2833fb08913cffb0bc3d66f8f1e86c SHA-1: 5b26ffe848eee583d63ec3316140e406dda9a64e SHA-256: b4e111a69267b8f71263b83311a13e4bf1ed0315f3f35e7a124b477a114aaae7
130 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, indicating a phishing or malware distribution attempt. The presence of a 'download button' heuristic further supports the lure-based attack pattern. The primary malicious URL is https://ttraff.me/wix?keyword=habor+oil+cooler+manual, which is likely used to redirect the user to a malicious payload or phishing page.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/wix?keyword=habor+oil+cooler+manual
    • https://static.usrfiles.com/ugd/b8c837_b141bc19f86a429baf8c81e42b40d6e9.pdf
    • https://static.usrfiles.com/ugd/b8c837_31facdb28ae3470c841cfb5e3d84d451.pdf
    • https://static.usrfiles.com/ugd/b8c837_336d3089a682468f804f0b8855b4b0a6.pdf
    • https://static.usrfiles.com/ugd/b8c837_b0deb1a4376a435e96ca0521b9232cbe.pdf
    • https://cdn.shopify.com/s/files/1/0438/3080/4637/files/zemukemawotetudosusiv.pdf
    • https://cdn.shopify.com/s/files/1/0435/6843/1265/files/iota_amharic_bible.pdf
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/circle_theorems_proof_class_9.pdf
    • https://cdn.shopify.com/s/files/1/0437/1723/0741/files/jozikovejadowudus.pdf
    • https://cdn.shopify.com/s/files/1/0430/4489/6917/files/social_security_form_w-_4v.pdf
    • https://cdn.shopify.com/s/files/1/0434/9476/8792/files/baixar_pesquisa_em_educao_abordagens_qualitativas.pdf
    • https://cdn.shopify.com/s/files/1/0429/6579/4969/files/5463268942.pdf
    • https://static.usrfiles.com/ugd/b8c837_6440e4b34fa44aa18d9dd6a34df21ee9.pdf
    • https://static.usrfiles.com/ugd/b8c837_a0ac2323ecfa47d29742889302463b92.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_off00004ff7.bin
0692f60f201bc4a99574be4c5761ce7450144d003f27594fc118f5d67e41ba3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FF7 4868 bytes
font_01_sfnt_off00006064.bin
baeb98977548de97e99910e1ecbc67dea50cead3b2970397d305f88a9b9d9290		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6064 11004 bytes

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