Malicious PDF — malware analysis report

Static analysis result for SHA-256 95bd79cf23e016b7…

MALICIOUS

PDF

51.1 KB Created: 2020-08-17 12:45:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0764982bcd2ceb195b04f9aa69af903b SHA-1: 83b002c39d3e0b7d570568d06bde4289fb28cb75 SHA-256: 95bd79cf23e016b751d720ae7b7a29bc4eabf485cba986e347b5b56c6a3f60c1
150 Risk Score

Malware Insights

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

The PDF contains a lure for a "free movie" which, upon clicking, redirects to a malicious URL. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms this redirection to known malicious infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates the document is part of a larger scheme to generate traffic, likely for SEO manipulation or to distribute malware. The ML classifier also strongly flagged this PDF as malicious.

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.cc/pify?keyword=barfi+full+movie+free++in+mp4
    • http://wexibil.weyburnsynchrostars.com/uploads/1/3/2/7/132741029/5478025.pdf
    • http://files.tarcova.com/uploads/1/3/1/4/131437987/posorikovagatan.pdf
    • http://kajenub.castlesjewelry-gifts.com/uploads/1/3/1/4/131453133/4474474.pdf
    • http://gosumeja.home-views.com/uploads/1/3/2/3/132303124/ad37c3b.pdf
    • http://files.bluethunderbirdwoman.com/uploads/1/3/1/8/131871780/5388329.pdf
    • https://cdn.shopify.com/s/files/1/0429/2889/8211/files/kodefig.pdf
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/47933391513.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0071/files/mozezobevuxemiselodej.pdf
    • https://cdn.shopify.com/s/files/1/0434/3519/6566/files/meningitis_por_candida_albicans.pdf
    • https://cdn.shopify.com/s/files/1/0436/3950/5056/files/ukcat_abstract_reasoning_questions.pdf
    • https://cdn.shopify.com/s/files/1/0437/7100/3037/files/counterfeit_drugs.pdf
    • https://cdn.shopify.com/s/files/1/0430/4230/8250/files/lanthanides_and_actinides_properties.pdf
    • https://cdn.shopify.com/s/files/1/0428/9078/9020/files/koxogazixonuk.pdf
    • https://cdn.shopify.com/s/files/1/0433/2853/6734/files/29883959297.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gigogew.pdf
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/adhesion_in_dentistry.pdf
    • https://cdn.shopify.com/s/files/1/0436/0683/5358/files/16106135294.pdf
    • https://cdn.shopify.com/s/files/1/0440/3236/0613/files/famexijux.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/
    • https://cdn.shopify.com/s/files/1/0430/5109/0071

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007ff5.bin
a631c294408baaa03e3863ec417fad3ed3d05ad780833465f06a330fcec9ae75
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF5 5068 bytes
font_01_sfnt_off00009126.bin
93ac8726772e1041869c74875f2c7e8397092f942f7b335062a2d0196c23e7e5
pdf-font-stream PDF embedded font (sfnt) at offset 0x9126 14820 bytes