Malicious PDF — malware analysis report

Static analysis result for SHA-256 7887c704cc8b3756…

MALICIOUS

PDF

119.8 KB Created: 2020-08-30 07:22:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4440f29732dbbe897640cafcee9e8d27 SHA-1: aea08fee6afd2f3c8c68216ccef826949dfdcf61 SHA-256: 7887c704cc8b3756c181dc30af7cadd8bd9a1790c91ef3e70fc48f09d97b733b
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic indicating it's a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=descarregar+motores+para+slrr+2.2.1'. This URL is presented within the document body, suggesting a social engineering lure to download software or visit a malicious site. The presence of a PDF link farm heuristic further supports the malicious intent, aiming to distribute malicious content through numerous links, many hosted on 'cdn.shopify.com'. 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/wix?keyword=descarregar+motores+para+slrr+2.2.1
    • https://cdn.shopify.com/s/files/1/0431/0050/4217/files/rashidun_caliphate.pdf
    • https://cdn.shopify.com/s/files/1/0435/7373/9675/files/dawimomajegufexa.pdf
    • https://cdn.shopify.com/s/files/1/0427/6482/8838/files/1746561988.pdf
    • https://cdn.shopify.com/s/files/1/0441/2804/3160/files/vegesizonimatubuloji.pdf
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/55448403766.pdf
    • https://static.usrfiles.com/ugd/b8c837_0b65f033658044dcb30d5023ac045c70.pdf
    • https://static.usrfiles.com/ugd/4c1554_1a5d43634f304d9e94b9723009eddbf9.pdf
    • https://cdn.shopify.com/s/files/1/0432/9914/3838/files/xexamimejifidigawu.pdf
    • https://cdn.shopify.com/s/files/1/0432/1086/6851/files/32385602001.pdf
    • https://cdn.shopify.com/s/files/1/0433/5206/4155/files/core_java_mini_projects_with_source_code.pdf
    • https://cdn.shopify.com/s/files/1/0437/0939/9193/files/drawing_book_design.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_off00017fd7.bin
8447c9ddff3e0a16f72e4966c5514a6634c34b3020f6efb50a5e7ebbaeb9ea3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17FD7 2904 bytes
font_01_sfnt_off00018a2b.bin
0d5edff94296ad4dcc25c465a5c769ef03f48fbc599a00b9128cf0b5308d2d3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18A2B 5468 bytes
font_02_sfnt_off00019cb9.bin
8c4d72a1cb943beb45e87f7a0b229d0e8bd32a7b5df740a55df95ada3b50efde		 pdf-font-stream PDF embedded font (sfnt) at offset 0x19CB9 17160 bytes

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