Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d4ace531fe6cefc…

MALICIOUS

PDF

36.7 KB Created: 2020-08-14 19:09:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d46ab830ecde3f19a07066c847e43c0 SHA-1: 9c8533751f2429f044dbe70acb46e9127a922ad8 SHA-256: 2d4ace531fe6cefc4be62758c1571728cb8a1eb63bdf2c8174a0378110aab677
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 links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains text that appears to be related to the malicious URL. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content through numerous seemingly benign links.

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.cc/pify?keyword=afshan+zaibi+all+song
    • http://files.nostrings.co.nz/uploads/1/3/0/8/130874382/xemuvag_kumedo.pdf
    • https://cdn.shopify.com/s/files/1/0438/8447/8632/files/fumarezoxos.pdf
    • https://cdn.shopify.com/s/files/1/0439/3389/2763/files/balsamo_bengue_bula.pdf
    • https://cdn.shopify.com/s/files/1/0431/4529/8080/files/list_of_past_tense_and_present_tense.pdf
    • https://cdn.shopify.com/s/files/1/0432/6568/7717/files/3259868017.pdf
    • https://cdn.shopify.com/s/files/1/0431/6446/7357/files/email_format_html_or_rich_text.pdf
    • https://cdn.shopify.com/s/files/1/0440/9724/1240/files/sabuf.pdf
    • https://cdn.shopify.com/s/files/1/0429/1385/7692/files/83616202217.pdf
    • https://cdn.shopify.com/s/files/1/0431/5611/1520/files/buroru.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/66417645598.pdf
    • https://cdn.shopify.com/s/files/1/0432/6726/0582/files/goleroviwubogitetewubexo.pdf
    • https://cdn.shopify.com/s/files/1/0431/3245/3015/files/86022462063.pdf
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/17570033430.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/51854478794.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_off0000492b.bin
2f6c51cb59d4bc264efb72e567a487f298c0ffa9655cdf91dbedeacaf4cf86f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x492B 5112 bytes
font_01_sfnt_off00005a94.bin
5d44b524d8540a25e74460c447d7a7854bb73ec6c6d64e7a426b2ea0a6020b2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A94 13576 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.