Malicious PDF — malware analysis report

Static analysis result for SHA-256 b220b847abb72b2a…

MALICIOUS

PDF

33.0 KB Created: 2020-08-11 04:46:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 922a50834e8f1e4292c7209c5a82adbd SHA-1: 38c4e3b704930236d5dbeec66043be4667bfc6b0 SHA-256: b220b847abb72b2ae9c94a520d5c94523858fa328d577424ef46eb401601e10b
120 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 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and numerous other links, many hosted on 'cdn.shopify.com', suggesting a link farm or redirection strategy. The primary intent appears to be directing users to malicious infrastructure via the 'ttraff.com' URL, likely for phishing or malware delivery.

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=apj+abdul+kalam+quotes+in+telugu+pdf
    • http://loxel.emptyvessels.org/uploads/1/3/1/4/131437987/dd2f8134867.pdf
    • http://files.jancancan.com/uploads/1/3/1/4/131406413/sosazidisajawaj-ledosol-vaxodavuv-ziwobedomanefon.pdf
    • http://tizejef.starrygardenschool.com/uploads/1/3/0/8/130874431/mojevo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4349/5842/files/38814806453.pdf
    • https://cdn.shopify.com/s/files/1/0436/1604/3168/files/88733619344.pdf
    • https://cdn.shopify.com/s/files/1/0435/9480/9507/files/58365494873.pdf
    • https://cdn.shopify.com/s/files/1/0432/6889/8966/files/sorutawe.pdf
    • https://cdn.shopify.com/s/files/1/0440/6195/0117/files/87224241415.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9800/files/24567061737.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/pid_code_example.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tozonolemudafolafoxi.pdf
    • https://cdn.shopify.com/s/files/1/0437/5805/9671/files/27260342298.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69892687871.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21244882445.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_off000043c2.bin
43a4ca06c5ae745f88df60dc516ee1cae5e0e99980b7f001718f9939456909e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43C2 5660 bytes
font_01_sfnt_off000056ea.bin
bea663958473081cdea74e03c5ad7f97bc5275ede66e2a162bb03cc4476802a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56EA 9524 bytes

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