Malicious PDF — malware analysis report

Static analysis result for SHA-256 49d0c96e5802046f…

MALICIOUS

PDF

41.0 KB Created: 2020-09-29 21:20:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42472023a8cd83da40ea73e4f340921b SHA-1: 40d972423a56a7e79d2ddeb8ed55437be7935528 SHA-256: 49d0c96e5802046fc743c4576ebca40bccdd4874995cf0b5951e25413550991f
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ggtraff.ru/strik?keyword=hindu+boy+names+starting+with+r+pdf'. This suggests the document is part of an SEO poisoning or link farm attack, designed to lure users to malicious sites. No scripts were extracted from this sample.

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://ggtraff.ru/strik?keyword=hindu+boy+names+starting+with+r+pdf
    • http://files.axpcbd.com/uploads/1/3/1/4/131437253/tapesixituraz.pdf
    • http://vavebo.theplayfulpalate.com/uploads/1/3/1/4/131454165/3152396.pdf
    • http://jatulag.bradysk9fund.com/uploads/1/3/1/6/131606407/rafusemateva.pdf
    • http://kodekig.jecdevelopment.com/uploads/1/3/1/4/131408371/xerudo.pdf
    • http://files.amcbfoundation.org/uploads/1/3/2/7/132710794/5052949.pdf
    • http://zoxetiseg.rebeccakightlinger.com/uploads/1/3/1/8/131856235/04e484256.pdf
    • http://buroji.setauketmeadows.com/uploads/1/3/1/3/131379256/silovijudo-kejidabopekojod-masijokivedore-kewexunalukuw.pdf
    • http://majod.melissaparkvoshell.com/uploads/1/3/1/4/131407089/wugijepi.pdf
    • http://files.key2evolve.com/uploads/1/3/1/3/131378990/4207032.pdf
    • http://dewumaz.rivertonprairiedog.com/uploads/1/3/1/1/131164131/8e6a7b90b76.pdf
    • https://uploads.strikinglycdn.com/files/cb91e25b-84c7-4d44-bb12-831b9718e920/2926307077.pdf
    • https://uploads.strikinglycdn.com/files/b87fd416-0580-4f82-bc68-b17c1c6f8739/12122914170.pdf
    • https://uploads.strikinglycdn.com/files/56eaa279-648b-4924-a97f-422e95f8e02a/88697862528.pdf
    • https://uploads.strikinglycdn.com/files/db248a2f-0d88-470b-9a6d-098d167a1fe3/xugolodezaxomadusi.pdf
    • https://cdn.shopify.com/s/files/1/0429/3358/4035/files/the_three-body_problem_cixin_liu_epu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4162/8053/files/tipos_de_psicosis.pdf
    • https://cdn.shopify.com/s/files/1/0431/6885/8272/files/adobe_illustrator_cc_2017_tutorials.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_off000060ce.bin
5524d6f210676e0daa52abfcc4ca0594b6c40631304425aa5b4b5934a814620c
pdf-font-stream PDF embedded font (sfnt) at offset 0x60CE 5720 bytes
font_01_sfnt_off00007427.bin
b77c3bf38da41911bb1d4726c5a6c104650af158d193deb5d8d339a6b2dccb1e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7427 10180 bytes