Malicious PDF — malware analysis report

Static analysis result for SHA-256 f319d16a7bea0d65…

MALICIOUS

PDF

69.8 KB Created: 2020-08-01 21:46:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b542d3c2928082160145bbbfc33c0eb SHA-1: d7174c0c3b0bf12be14d092ada6f4567a50d228e SHA-256: f319d16a7bea0d65a1273f827a063b788567f2b2b4f1747863831417b3946ca5
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=dodge+grand+caravan+manual'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0430/3526/3138/files/59197674916.pdf'. The document body, though partially corrupted, contains text related to a 'Dodge grand caravan manual' and the wkhtmltopdf tool, suggesting a lure to disguise the malicious link.

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.ru/pify?keyword=dodge+grand+caravan+manual
    • http://files.cmcedmasters.com/uploads/1/3/1/3/131380177/vozizatexozago_dizoren.pdf
    • http://files.gretchenandresart.com/uploads/1/3/1/6/131637562/katumisipuforuz.pdf
    • http://files.cttl.org/uploads/1/3/1/6/131637271/mevotu.pdf
    • http://files.jessicabashline.com/uploads/1/3/1/4/131482867/1816856.pdf
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/59197674916.pdf
    • https://cdn.shopify.com/s/files/1/0439/4716/3806/files/unity_movement_script.pdf
    • https://cdn.shopify.com/s/files/1/0433/2398/1979/files/rikuva.pdf
    • https://cdn.shopify.com/s/files/1/0430/8919/9268/files/foxujod.pdf
    • https://cdn.shopify.com/s/files/1/0432/8180/9563/files/tusulotefivufunu.pdf
    • https://cdn.shopify.com/s/files/1/0439/2707/7032/files/31465955217.pdf
    • https://cdn.shopify.com/s/files/1/0430/9182/0695/files/lunudukarewodebawefe.pdf
    • https://cdn.shopify.com/s/files/1/0435/1187/3688/files/16864665513.pdf
    • https://cdn.shopify.com/s/files/1/0431/8996/0865/files/tudigupemu.pdf
    • https://cdn.shopify.com/s/files/1/0436/1207/8243/files/88578183400.pdf
    • https://cdn.shopify.com/s/files/1/0431/3461/5719/files/15280305750.pdf
    • https://cdn.shopify.com/s/files/1/0429/3158/5180/files/barobidimawemebit.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_off0000c62a.bin
ca746ab8046d3c3ec89324ded315b00ed11ce4fc7e97ecf3f5037ac5eb5ca01e
pdf-font-stream PDF embedded font (sfnt) at offset 0xC62A 4892 bytes
font_01_sfnt_off0000d6ba.bin
fd7235f71dbf61f4a07f88155a46cdfeb7e981c95fcd11bb692e9528700d8c6d
pdf-font-stream PDF embedded font (sfnt) at offset 0xD6BA 11040 bytes
font_02_sfnt_off0000fc0f.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xFC0F 4324 bytes