Malicious PDF — malware analysis report

Static analysis result for SHA-256 44d17096ac576695…

MALICIOUS

PDF

36.9 KB Created: 2020-08-04 06:06:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 951758988341f2cec98ef71a2225191a SHA-1: 35ee4e8a93f1e88da4de0ac4aa7ab2e4532e4da7 SHA-256: 44d17096ac57669578e0e71ce4653677e60df954f26fe63bd58a0845b7eb835c
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, many of which point to a link farm designed for SEO manipulation. One of these URLs, https://ttraff.com/pify?keyword=bajaj+pulsar+200ns+spare+parts+catalogue+pdf, is identified as a malicious redirector. The document body, though heavily corrupted, appears to contain text related to a 'Bajaj pulsar 200ns spare parts catalogue', suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

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=bajaj+pulsar+200ns+spare+parts+catalogue+pdf
    • http://files.lathamhomesanitation.com/uploads/1/3/0/7/130739303/6574550.pdf
    • http://files.thebinarylivingway.com/uploads/1/3/0/7/130776015/lijusegof.pdf
    • http://files.justcapsusa.com/uploads/1/3/0/9/130969405/8357937.pdf
    • https://cdn.shopify.com/s/files/1/0431/5735/6710/files/c_square_root.pdf
    • https://cdn.shopify.com/s/files/1/0433/4069/3662/files/windows_98_virtualbox.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/64141774820.pdf
    • https://cdn.shopify.com/s/files/1/0428/9173/9295/files/84582121780.pdf
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/disisabu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9464/5672/files/fegiwujo.pdf
    • https://cdn.shopify.com/s/files/1/0428/7083/3319/files/goluvukawelidana.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdf
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/30617239775.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vibamiwa.pdf
    • https://cdn.shopify.com/s/files/1/0429/3656/5923/files/32160504094.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_off00004f54.bin
a41fc66221b0dee9563c0cc580765fa79d3358087b5dbbd5cf344bff19b13d9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F54 5724 bytes
font_01_sfnt_off000062e6.bin
a248c4261046f10b183e7befba8fe7ad3c60929d5e55e56c22644eac195f3113		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62E6 10492 bytes

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