Malicious PDF — malware analysis report

Static analysis result for SHA-256 f801c7504061f825…

MALICIOUS

PDF

50.1 KB Created: 2020-08-18 23:53:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be151a8c75fea76418813c8a2c0f4b48 SHA-1: f8b119ee71be03411ec4c44ea9fe9586e663929e SHA-256: f801c7504061f825cbbaa44579ecd2b83c44a885e37cf5d1b7c106497689acc3
150 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which are designed to mimic legitimate PDF file names hosted on Shopify. The primary malicious link, 'https://ttraff.ru/pify?keyword=technical+dhiraj+apk+tik+tok', is identified as a known malicious redirector. This suggests the document's purpose is to direct users to malicious sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=technical+dhiraj+apk+tik+tok
    • http://files.urbanraj.com/uploads/1/3/2/6/132680808/f06d599.pdf
    • https://cdn.shopify.com/s/files/1/0437/3538/4225/files/zoramugotebaxowifedaleli.pdf
    • https://cdn.shopify.com/s/files/1/0431/4021/9041/files/glowgaze_dayt_se.pdf
    • https://cdn.shopify.com/s/files/1/0431/1869/0458/files/bajekotuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/2078/7613/files/laxojurikinikiwopelagig.pdf
    • https://cdn.shopify.com/s/files/1/0432/3622/9278/files/answers_of_history_class_9_chapter_2.pdf
    • https://cdn.shopify.com/s/files/1/0431/0935/1578/files/sidatututoruforowimilupi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7034/0772/files/pelufuzemevezovusunix.pdf
    • https://cdn.shopify.com/s/files/1/0433/5419/4070/files/hackerrank_interview_questions.pdf
    • https://cdn.shopify.com/s/files/1/0439/2170/3067/files/19314423476.pdf
    • https://cdn.shopify.com/s/files/1/0430/2074/6906/files/49233480038.pdf
    • https://cdn.shopify.com/s/files/1/0435/8009/6667/files/95299671443.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000637a.bin
7afd267fd11a8d164f79f73412cf706f3e059b796dc58175948a3bd3fbbb0e73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x637A 5072 bytes
font_01_sfnt_off0000749d.bin
991f7ef292b59849fa1804c361c52a6255426db797fbcab3b5d31d1f34ee76c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x749D 2116 bytes
font_02_sfnt_off00007e48.bin
cfac97fb186bf5ad02b96f5ffa01aa8cb587c030ab35bad624d6b3e45cad65b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E48 10484 bytes
font_03_sfnt_off0000a206.bin
4678e12d593f4c8df0f8d5d6974d60918fe5a3294c9f4b331c5ef59f1238e793		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA206 7412 bytes

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