Malicious PDF — malware analysis report

Static analysis result for SHA-256 db0fe0af7f4cc06b…

MALICIOUS

PDF

52.5 KB Created: 2020-08-01 22:19:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c46dcff2a8abdd49ca2cc3f16e60bfc SHA-1: 411ea49f7b4e3c75500bd1c2509b07c79a675d8b SHA-256: db0fe0af7f4cc06b2f12e21f8e8513a2111632866a7e15beef841be3fcbbefba
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL is https://ttraff.com/pify?keyword=sandhyavandanam+in+english+pdf, which likely serves as a lure to a malicious payload. The document body contains obfuscated text and embedded URLs, further supporting 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=sandhyavandanam+in+english+pdf
    • http://files.cathybinghamphotography.com/uploads/1/3/0/7/130776726/jizuzok.pdf
    • http://files.mineindia.com/uploads/1/3/2/6/132696112/gisekenituri-wumemukudito-latekago-gofabifarorotu.pdf
    • http://files.abijoes.co.uk/uploads/1/3/0/7/130739517/zoxajapujanu-maburodiluxexif.pdf
    • https://cdn.shopify.com/s/files/1/0429/3305/9737/files/kalozobeninafitiwi.pdf
    • https://cdn.shopify.com/s/files/1/0432/2865/9874/files/soxosuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/4931/2665/files/64807907829.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/bokuzalabidizuwanamuvu.pdf
    • https://cdn.shopify.com/s/files/1/0432/8266/1526/files/zowenixuju.pdf
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/80356886800.pdf
    • https://cdn.shopify.com/s/files/1/0431/3071/6314/files/aws_lambda_python_libraries.pdf
    • https://cdn.shopify.com/s/files/1/0430/7098/0247/files/43390492969.pdf
    • https://cdn.shopify.com/s/files/1/0433/4652/6376/files/weradeguxen.pdf
    • https://cdn.shopify.com/s/files/1/0437/0441/8455/files/57581716677.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/99781003244.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_off000085e8.bin
f30dcd91a97da1011323926fdd35890132eb29500fd82409f36f3f1e46d2ec38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85E8 5624 bytes
font_01_sfnt_off000098f8.bin
b9c46b5c118849cdd18a819981f49663864a3387c0ab10c3278333e83f313b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98F8 14268 bytes

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