Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae92797cc5957904…

MALICIOUS

PDF

42.6 KB Created: 2020-08-23 04:33:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ca0f7328a8c7a4d1a9ed09a64b87f03 SHA-1: ce5b38d5cad5c7749924d0d7b38e5da09294692e SHA-256: ae92797cc595790473d1e7c3de6f814083ba209eec768c1bdbe726546ba4f54a
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, pointing to 'https://ttraff.com/pify?keyword=duxmen+arkansas+duck+hunting+guides+lodge'. It also contains a heuristic for a PDF link farm, with multiple links hosted on cdn.shopify.com, including 'https://cdn.shopify.com/s/files/1/0440/7482/7941/files/manov.pdf'. The document body, though heavily corrupted, contains text fragments related to duck hunting and the PDF's creation tool, suggesting a lure to entice users to click 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.com/pify?keyword=duxmen+arkansas+duck+hunting+guides+lodge
    • http://files.jessthatsme.com/uploads/1/3/1/4/131453219/mixukapugabasav_zukakiweguliv.pdf
    • https://cdn.shopify.com/s/files/1/0440/7482/7941/files/manov.pdf
    • https://cdn.shopify.com/s/files/1/0428/8095/8617/files/cctv_camera_system.pdf
    • https://cdn.shopify.com/s/files/1/0433/8984/5654/files/32945346470.pdf
    • https://cdn.shopify.com/s/files/1/0438/0858/7938/files/96955182935.pdf
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/antibiotic_essentials_2020_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0438/5511/8501/files/gidujojalejajumelifukemoj.pdf
    • https://cdn.shopify.com/s/files/1/0429/1811/7543/files/wukamawoxafuxok.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/rodumawarefuz.pdf
    • https://cdn.shopify.com/s/files/1/0428/0818/0895/files/nintendo_switch_error_code_2110.pdf
    • https://cdn.shopify.com/s/files/1/0431/5827/4205/files/bhartiya_chitrakala_ka_itihas.pdf
    • https://cdn.shopify.com/s/files/1/0431/5794/6519/files/82637776088.pdf
    • https://cdn.shopify.com/s/files/1/0433/7877/0078/files/93420478060.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_off00006742.bin
0c8f5573d2f96d75391d156a060fd572ce4b84262e19a4559a3ce962e512585f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6742 5484 bytes
font_01_sfnt_off000079ba.bin
c5a81fd949b479dd4678a6f46f5b138e00c85c822883e996ee8297b206e001a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79BA 10516 bytes

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