Malicious PDF — malware analysis report

Static analysis result for SHA-256 57f02727ace39f0f…

MALICIOUS

PDF

45.6 KB Created: 2020-08-09 10:44:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79f7beda97bea96bda96b5b8051870c7 SHA-1: eb216dd3c8ba6535e2167c60dadbca4b65e121ae SHA-256: 57f02727ace39f0fff42e86f360c66c42707c13786d5d167cd9736de91b434c5
120 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.com/pify?keyword=chaconne+in+d+minor+piano+sheet+music+pdf'. This indicates the document's primary purpose is to trick the user into visiting a malicious URL. The document also contains a large number of external PDF links, many hosted on Shopify, which is characteristic of SEO link farm abuse to obscure the malicious redirector. No scripts were extracted from this sample.

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.com/pify?keyword=chaconne+in+d+minor+piano+sheet+music+pdf
    • http://ropav.mtbstell.com/uploads/1/3/1/8/131856584/a72164.pdf
    • http://zonibo.bgscreenfabrication.com/uploads/1/3/1/4/131453133/8638fda2f76.pdf
    • http://files.diogenpro.com/uploads/1/3/1/3/131381067/satufalakuwux_donirozuz_peworimukenexe_xebixifofade.pdf
    • http://files.carriedolan.com/uploads/1/3/0/7/130776864/9017134.pdf
    • https://cdn.shopify.com/s/files/1/0430/2854/5693/files/nemadejavasifameri.pdf
    • https://cdn.shopify.com/s/files/1/0430/2916/8282/files/90125744978.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/minecraft_nuke_mod_1._12._2.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/benubojebexoreloruva.pdf
    • https://cdn.shopify.com/s/files/1/0432/4845/1739/files/42546413490.pdf
    • https://cdn.shopify.com/s/files/1/0430/8746/2551/files/30443709919.pdf
    • https://cdn.shopify.com/s/files/1/0447/5761/4741/files/arc_length_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/7599/3764/files/turitaja.pdf
    • https://cdn.shopify.com/s/files/1/0440/1322/4094/files/83559905245.pdf
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/bofinobemalowujolegap.pdf
    • https://cdn.shopify.com/s/files/1/0435/7432/9507/files/ziliwegototu.pdf
    • https://cdn.shopify.com/s/files/1/0440/0440/9494/files/watchtower_library_for_mac.pdf
    • https://cdn.shopify.com/s/files/1/0432/4648/5672/files/conda_create_requirements._txt.pdf
    • https://cdn.shopify.com/s/files/1/0429/3338/7423/files/tumodek.pdf
    • https://cdn.shopify.com/s/files/1/0435/8379/9459/files/barras_bravas_chile.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e6d.bin
ff9c355bccfed5f199b61d5ab6337552c3437739f4a391a0f9e08dfb955f1226
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6D 5268 bytes
font_01_sfnt_off00007026.bin
d53b01bc0757a0c7b1143db4521fb389f78153e21cc41d2e1d6a2ca4802f0902
pdf-font-stream PDF embedded font (sfnt) at offset 0x7026 10216 bytes
font_02_sfnt_off00009370.bin
fb7b45e24c28c4473d0ca1c6410c593992d9a809009f9c41b5ae32c9142507dd
pdf-font-stream PDF embedded font (sfnt) at offset 0x9370 16120 bytes