Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7f2ef0566d2ea02…

MALICIOUS

PDF

45.4 KB Created: 2020-08-16 21:03:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b6e9d0afde102ced32b574410b58036 SHA-1: b4056b38f46978d46637644b26a4a7935805a263 SHA-256: e7f2ef0566d2ea025c0ce09174f418250b174e77a37530a8dc86237cdf0ece73
128 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=javascript+button+do+not+submit+form'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on cdn.shopify.com. The document body contains text that appears to be a lure for a download button, reinforcing the malicious redirector's purpose. The primary attack pattern involves tricking the user into clicking a link that leads to malicious infrastructure.

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.cc/pify?keyword=javascript+button+do+not+submit+form
    • http://mofeko.generationrestaurantsupply.com/uploads/1/3/1/6/131606552/kadadazerokemeset.pdf
    • http://files.3jsauto.com/uploads/1/3/2/6/132681670/wufibagelifaz-fixidawumu.pdf
    • http://gudoxad.valeriemadden.net/uploads/1/3/0/7/130776716/xujonopasurekukigu.pdf
    • http://files.beckahjonvoice.com/uploads/1/3/0/7/130776111/9861966.pdf
    • http://vupitig.bbirdwatcher.com/uploads/1/3/0/7/130740257/rakopaxolurule.pdf
    • https://cdn.shopify.com/s/files/1/0434/8936/2082/files/21260356693.pdf
    • https://cdn.shopify.com/s/files/1/0429/1582/3772/files/33519701987.pdf
    • https://cdn.shopify.com/s/files/1/0437/5114/5626/files/72113012600.pdf
    • https://cdn.shopify.com/s/files/1/0428/7699/3695/files/xabaxu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7573/9560/files/20895422982.pdf
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/95133582882.pdf
    • https://cdn.shopify.com/s/files/1/0436/0765/4563/files/78844866008.pdf
    • https://cdn.shopify.com/s/files/1/0434/3041/2437/files/83248743636.pdf
    • https://cdn.shopify.com/s/files/1/0431/1187/4716/files/atkins_quimica_fisica.pdf
    • https://cdn.shopify.com/s/files/1/0435/1701/8267/files/digital_design_5th_edition_solution_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/1572/3414/files/67095914000.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8099/files/genetic_polymorphism_in_drug_transport.pdf
    • https://cdn.shopify.com/s/files/1/0434/6737/4758/files/7883341867.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/
    • https://cdn.shopify.com/s/files

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f53.bin
eb26515a745f02750bf25b00b87298ddfd5d9da5b811126949c8dedba5d9fa37
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F53 5460 bytes
font_01_sfnt_off000081c5.bin
3b1a998c6bda32246f150893466ba3591b2cb1945d33ec805fe61a50442034f7
pdf-font-stream PDF embedded font (sfnt) at offset 0x81C5 11784 bytes