Malicious PDF — malware analysis report

Static analysis result for SHA-256 c678243e615abb49…

MALICIOUS

PDF

61.2 KB Created: 2020-08-11 03:46:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a59d426e271cf4fd5fb0a9e1c1c09ad SHA-1: 411bd5ee8bcb1558fee192f96ce1cf96d08289a3 SHA-256: c678243e615abb49fdc90f441dd97f0b5c2f0d937212752542865a0e0083bfd6
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=kandar+alangaram+meaning+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains references to the malicious URL and other Shopify links, suggesting a lure to external content. The primary intent appears to be redirecting the user to malicious infrastructure.

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.ru/pify?keyword=kandar+alangaram+meaning+pdf
    • http://bisemamas.thejazzowl.com/uploads/1/3/0/7/130776330/xiwanaraf.pdf
    • http://files.albums-of-photos.com/uploads/1/3/0/8/130813317/fa18ece6.pdf
    • http://files.stacysdogtraining.com/uploads/1/3/0/9/130969505/gusuw.pdf
    • http://files.youthfastpitch.org/uploads/1/3/1/4/131438240/9447430.pdf
    • https://cdn.shopify.com/s/files/1/0444/4153/4631/files/francis_turbine_working_principle.pdf
    • https://cdn.shopify.com/s/files/1/0450/2165/9286/files/ashrae_62._1_2020_espaol.pdf
    • https://cdn.shopify.com/s/files/1/0429/0415/8375/files/88201052322.pdf
    • https://cdn.shopify.com/s/files/1/0435/5457/0399/files/wetutovunitewifasepoxuxed.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/47184882359.pdf
    • https://cdn.shopify.com/s/files/1/0440/0083/7782/files/55465390864.pdf
    • https://cdn.shopify.com/s/files/1/0433/6739/9575/files/canyon_auto_repair.pdf
    • https://cdn.shopify.com/s/files/1/0437/2316/1768/files/59304979327.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bixebor.pdf
    • https://cdn.shopify.com/s/files/1/0430/8326/8257/files/calendario_lunar_2020_cuba.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7352/files/bad_boy_walter_dean_myers.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mipin.pdf
    • https://cdn.shopify.com/s/files/1/0432/3134/6856/files/brand_authorization_letter_format.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009392.bin
4f7c3cdea851e0b8d8b9d92fa2fb9d3d84c0bc3ffc1d87a25e741f6b371c6010
pdf-font-stream PDF embedded font (sfnt) at offset 0x9392 5152 bytes
font_01_sfnt_off0000a505.bin
83a6462ccb1fb1d52cef5071b8159ba6b977647e22f25c571f395870930b54af
pdf-font-stream PDF embedded font (sfnt) at offset 0xA505 11868 bytes
font_02_sfnt_off0000c2de.bin
e968dfe2efa0d285744ff4600983fa4acfcc0d0e1dad5022370824e27b508833
pdf-font-stream PDF embedded font (sfnt) at offset 0xC2DE 10768 bytes