Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcef3fbf3ecdf164…

MALICIOUS

PDF

33.7 KB Created: 2020-08-19 02:51:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4927f8b441c85abaee9336ea36166636 SHA-1: 69f587de86a7082bac4322bfb12909c20cbfc8c9 SHA-256: dcef3fbf3ecdf164acac34372e9a33bb30bfb14fa3703dbfd131bb7eff77270d
120 Risk Score

Malware Insights

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

The PDF contains a link to `https://ttraff.com/pify?keyword=balenciaga+reporter+crossbody+review`, which is identified as a malicious redirector. The document also exhibits characteristics of a PDF link farm, with numerous embedded links to external PDFs, many hosted on `cdn.shopify.com`. The primary malicious link likely serves as a lure to a phishing or malware distribution site.

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=balenciaga+reporter+crossbody+review
    • http://files.deerparkvets.com/uploads/1/3/2/6/132682076/piror.pdf
    • http://jonare.jessicacreane.com/uploads/1/3/2/8/132814930/wisezudi.pdf
    • http://files.tritttechnologylab.org/uploads/1/3/0/7/130775868/begazabarawu_zepegij.pdf
    • http://files.mpgresponsibilitynow.com/uploads/1/3/0/7/130775475/fusukub.pdf
    • https://cdn.shopify.com/s/files/1/0428/3075/8054/files/74848631731.pdf
    • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/asphalt_6_mali_apk_data.pdf
    • https://cdn.shopify.com/s/files/1/0437/0392/6939/files/65152832074.pdf
    • https://cdn.shopify.com/s/files/1/0440/9065/4870/files/62630310134.pdf
    • https://cdn.shopify.com/s/files/1/0428/4976/3487/files/34080373944.pdf
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/list_of_dry_fruits_name_with_photos.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/paxotaxazojulilinitulo.pdf
    • https://cdn.shopify.com/s/files/1/0437/3941/4677/files/brushed_cotton_bed_sheet_sets.pdf
    • https://cdn.shopify.com/s/files/1/0431/7013/6218/files/nejitibimapinepuko.pdf
    • https://cdn.shopify.com/s/files/1/0429/2005/0855/files/32840135006.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_off00004515.bin
7709757d7de7f2d21991c86216e986e82a1daef66e458607481bd6cef061e6c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4515 5684 bytes
font_01_sfnt_off00005888.bin
9f2b4bd20ef792f342d90ce7e94b86b6cb7e3325a3d75faef2d3385c45fedee0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5888 9908 bytes

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