Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f60b45b60f93cd9…

MALICIOUS

PDF

57.6 KB Created: 2020-08-25 13:19:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1af0544559d2cbadabf7c381d1f9b9e5 SHA-1: 43de06fec325b0991148819fbdc81b8b0367e887 SHA-256: 7f60b45b60f93cd90642f3ec3fc6a39458e9fece1432c3a37cfd512b4befc42b
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=vidmate++ke+liye+bheje'. Additionally, it features a PDF link farm heuristic, indicating a large number of embedded links, many of which point to benign Shopify domains but also include several unknown reputation URLs. The document body contains text that appears to be a lure for the Vidmate application, and a visual download button heuristic was also triggered. These elements collectively suggest a phishing or social engineering attack aimed at redirecting users 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.ru/pify?keyword=vidmate++ke+liye+bheje
    • http://files.cutterhq.com/uploads/1/3/1/4/131453945/solinowogibul.pdf
    • http://gobuwis.napashuttlelimo.com/uploads/1/3/1/3/131384260/85ebc737.pdf
    • http://nakulare.brandito.net/uploads/1/3/0/7/130776008/c0512094658.pdf
    • https://cdn.shopify.com/s/files/1/0438/9660/2779/files/systems_analysis_and_design_8th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0433/8502/8758/files/61188087599.pdf
    • https://cdn.shopify.com/s/files/1/0430/6105/1546/files/printable_copperplate_practice_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0448/0273/6279/files/busoni_bach_chaconne.pdf
    • https://cdn.shopify.com/s/files/1/0436/2846/2243/files/model_cerere_concediu_odihna.pdf
    • https://cdn.shopify.com/s/files/1/0465/5788/8662/files/chemicals_of_life_biology_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/0714/8185/files/windows_10_password_recovery_tool.pdf
    • https://cdn.shopify.com/s/files/1/0454/7071/1958/files/95093779289.pdf
    • https://cdn.shopify.com/s/files/1/0434/5711/8374/files/fetifeb.pdf
    • https://cdn.shopify.com/s/files/1/0431/8153/9489/files/92997152089.pdf
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/xabir.pdf
    • https://cdn.shopify.com/s/files/1/0431/2160/6820/files/cardiomyopathie_dilate_primitive.pdf
    • https://cdn.shopify.com/s/files/1/0435/7311/7087/files/harbor_breeze_remote_manual.pdf
    • https://cdn.shopify.com/s/files/1/0429/6110/9148/files/bye_laws_cooperative_housing_society_mumbai.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006eec.bin
5d7ec42581bff125d3df259555e8c3d926908bbd2753c1c0fc6da38b37a25da5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EEC 4708 bytes
font_01_sfnt_off00007eee.bin
abe60c9eeeecc6ac2b5add5f0e9f3207d3b8cbe442c00b4a673558c115610f6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EEE 2540 bytes
font_02_sfnt_off0000898f.bin
4019c84463544ae00963209941140b1196df2f936e7c7dd8ae225c5603d4c52c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x898F 13824 bytes
font_03_sfnt_off0000b503.bin
cb8b0c3b75634a3ac40028f3142d2b99dbff9c8bfe93654f62892c2eba89f065		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB503 16336 bytes
font_04_sfnt_off0000ca88.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCA88 4324 bytes

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