Malicious PDF — malware analysis report

Static analysis result for SHA-256 9513da275584047e…

MALICIOUS

PDF

43.8 KB Created: 2020-10-07 22:32:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8251e6c4d78fbdc51b299347635edb39 SHA-1: 00b6a630f685e23af8b9ee18d24878abc8770206 SHA-256: 9513da275584047e12c16efbee09a991142896fbfb89dddbc0a011e829411610
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm designed to manipulate search engine results. One of the primary links directs to a known malicious redirector. The document body itself is heavily obfuscated but contains references to the malicious URLs, suggesting an attempt to drive traffic to malicious infrastructure.

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://gettraff.ru/strik?keyword=mirror+lost+shards+patch
    • http://zivifape.walkinglightlytravel.com/uploads/1/3/1/3/131383314/mewuvebif-bobovefa-zijuberadob-wufipoxomugemu.pdf
    • http://files.nityakumar.com/uploads/1/3/2/6/132695813/3991437.pdf
    • http://files.phillyyouthdancefest.com/uploads/1/3/1/3/131381204/e7737a6d26.pdf
    • https://site-1039730.mozfiles.com/files/1039730/jiwitofebubedepomedaf.pdf
    • https://site-1043165.mozfiles.com/files/1043165/sifulejudipiketur.pdf
    • https://site-1039187.mozfiles.com/files/1039187/gasuratuxemerajukev.pdf
    • https://site-1042670.mozfiles.com/files/1042670/pipokukumajorupakofo.pdf
    • https://site-1037245.mozfiles.com/files/1037245/ridobijojunogexupivi.pdf
    • https://site-1037163.mozfiles.com/files/1037163/pexijibuxutiwubodozaj.pdf
    • http://files.abt-laenen.com/uploads/1/3/2/7/132710638/d7829bc94aea.pdf
    • http://files.soheilaazadi.com/uploads/1/3/1/4/131406473/b9abd9b80f39.pdf
    • http://kefim.coolcatstudio.net/uploads/1/3/1/3/131379409/a509c989ad.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_off0000619c.bin
637bd1196ac8626bc01e9f2026d84c593fcd8567ec1a6beb0064707c2ba42288		 pdf-font-stream PDF embedded font (sfnt) at offset 0x619C 4732 bytes
font_01_sfnt_off000071ba.bin
8ee66eead1d67d070a06a1b4daf3de34c84c93f24d0f546126b6d167558f37de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71BA 10128 bytes
font_02_sfnt_off00009467.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9467 4324 bytes

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