Malicious PDF — malware analysis report

Static analysis result for SHA-256 caac6718aacec37c…

MALICIOUS

PDF

47.4 KB Created: 2020-08-21 03:48:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8985df3c8dfc630ff42589892c6c6fb8 SHA-1: 3c685562d0187673fbae6210a6a4bbb54fa2f12b SHA-256: caac6718aacec37c79b39980b178aee9efb8af564eb487db3fb54322a45bd3a3
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, disguised as educational material. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates the primary intent is to redirect the user to a harmful site. The PDF_SEO_LINK_FARM heuristic suggests a large number of outbound links, many of which point to potentially malicious or unwanted content, further supporting the malicious redirection pattern. The document body contains the lure text and the malicious URL.

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=guided+reading+activity+6-+1+answers
    • http://files.jdliquidprinting.com/uploads/1/3/1/4/131437283/jasaj-telinosew-mameramuj.pdf
    • http://files.pfmorgans.com/uploads/1/3/1/6/131606453/118770.pdf
    • http://soburaja.jodynixmusic.com/uploads/1/3/0/8/130814995/8857830.pdf
    • https://cdn.shopify.com/s/files/1/0438/1710/7616/files/50360458203.pdf
    • https://cdn.shopify.com/s/files/1/0433/7496/8997/files/vanuwowoledekawosigu.pdf
    • https://cdn.shopify.com/s/files/1/0433/2588/2518/files/5803131976.pdf
    • https://cdn.shopify.com/s/files/1/0433/5481/6665/files/phenylalanine_deaminase_test.pdf
    • https://cdn.shopify.com/s/files/1/0449/2096/3227/files/jenegiroxajezonoti.pdf
    • https://cdn.shopify.com/s/files/1/0432/6594/9862/files/software_tester_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/5238/3904/files/lidelofakodutelira.pdf
    • https://cdn.shopify.com/s/files/1/0431/1888/7073/files/7727964055.pdf
    • https://cdn.shopify.com/s/files/1/0433/8289/8840/files/bearing_arrangement_design.pdf
    • https://cdn.shopify.com/s/files/1/0432/7935/1968/files/88188993724.pdf
    • https://cdn.shopify.com/s/files/1/0429/5504/7068/files/gamasakab.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_off00006422.bin
3bc19af784fbf6b68a879af5e5960acb4ee07078de8d8bad9273a9f3687b9abc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6422 5600 bytes
font_01_sfnt_off00007763.bin
156430517cec1da659d0cd7b1b6efd192855e6d81591bb58187ff93cb54a4c30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7763 10144 bytes
font_02_sfnt_off00009a22.bin
c9557d91917e40dbb2ce09b7ef560a04a9a832ffe2ebcac6b50408a58351272e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A22 16092 bytes

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