Malicious PDF — malware analysis report

Static analysis result for SHA-256 c62d5bee58469bcf…

MALICIOUS

PDF

47.6 KB Created: 2020-08-22 10:48:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46829215f743bc56814d9068e26c472a SHA-1: ac11ee9641fbeca4a6266717a0a9affa50c1a731 SHA-256: c62d5bee58469bcfeb665baa911fa726706266821d8dfb612856c83e4833d624
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com' with a query parameter suggesting an employment application lure. The document body, though heavily obfuscated, also contains this URL and other Shopify-hosted PDF links. The primary attack pattern involves tricking the user into clicking the malicious link under the guise of an employment form, leading them to a potentially harmful 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=employment+application+form+word
    • http://files.marathemodel.com/uploads/1/3/0/7/130776075/7df3cb9ee5c7.pdf
    • http://files.zizoomi.com/uploads/1/3/1/3/131384374/ebaa01cbffe5.pdf
    • http://files.jamesdaviespoetry.com/uploads/1/3/0/7/130776776/1b20bb9d8603.pdf
    • http://lojejilol.findanazhome.com/uploads/1/3/2/3/132303079/6534283.pdf
    • https://cdn.shopify.com/s/files/1/0432/4658/3976/files/buvilowikap.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45927795399.pdf
    • https://cdn.shopify.com/s/files/1/0447/8477/9430/files/candidiasis_genital_tratamiento_hombre.pdf
    • https://cdn.shopify.com/s/files/1/0437/9587/3949/files/rolling_stones_top_500_albums_list.pdf
    • https://cdn.shopify.com/s/files/1/0431/0152/0023/files/74116067329.pdf
    • https://cdn.shopify.com/s/files/1/0432/8692/1376/files/67325714479.pdf
    • https://cdn.shopify.com/s/files/1/0450/3722/4094/files/80002372355.pdf
    • https://cdn.shopify.com/s/files/1/0430/4984/4890/files/bovine_malignant_catarrhal_fever.pdf
    • https://cdn.shopify.com/s/files/1/0433/1061/2635/files/wanoru.pdf
    • https://cdn.shopify.com/s/files/1/0431/3199/4280/files/kegikipukigepipipamawup.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_off00007d68.bin
ad05fb7f4f243acc2be961c6ea18bd65200f00a5700b7db284a94863af367333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D68 5276 bytes
font_01_sfnt_off00008f56.bin
6d3db7df569f80414cbf54255015ed086390be8853c0645790692d2e6ef0ef56		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F56 9972 bytes

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