Malicious PDF — malware analysis report

Static analysis result for SHA-256 8612522a0585c810…

MALICIOUS

PDF

42.0 KB Created: 2020-08-14 00:44:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 977998c60e9f964b17c18088e007d29f SHA-1: 17356ec63fee7cd1205a52d59e785b898aae06ce SHA-256: 8612522a0585c810fe31ecdc8236d2ee4099d35dc81a99b326d84f74f95fcf2b
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a significant number of embedded links, flagged as a 'PDF SEO Link Farm'. One of these links, 'https://ttraff.cc/pify?keyword=insight+3d+printing+software', is identified as a malicious redirector. The presence of numerous external links suggests an attempt to either manipulate search engine results or lead users to malicious content. The ML classifier also strongly indicated maliciousness.

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=insight+3d+printing+software
    • http://files.comedyblockpartyent.com/uploads/1/3/0/8/130814065/2d9f84759.pdf
    • http://files.sarahcookedesigns.com/uploads/1/3/2/6/132680808/e40cd8ffb41aba6.pdf
    • http://files.jenndesignn.com/uploads/1/3/0/8/130874490/ad61d42e12.pdf
    • http://zatereb.inkonivory.ca/uploads/1/3/1/3/131383297/a8cab5ed24.pdf
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/wurudotizizeramelov.pdf
    • https://cdn.shopify.com/s/files/1/0429/9823/5289/files/94514751838.pdf
    • https://cdn.shopify.com/s/files/1/0429/6884/2393/files/71966287745.pdf
    • https://cdn.shopify.com/s/files/1/0428/1293/2255/files/tiny_smiley_face.pdf
    • https://cdn.shopify.com/s/files/1/0451/1278/7109/files/case_study_operations_research.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/2296019183.pdf
    • https://cdn.shopify.com/s/files/1/0435/8638/8136/files/55338094984.pdf
    • https://cdn.shopify.com/s/files/1/0446/6094/9155/files/andante_andante_sheet_music_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/8059/7152/files/bixuvil.pdf
    • https://cdn.shopify.com/s/files/1/0430/6645/8266/files/74147321543.pdf
    • https://cdn.shopify.com/s/files/1/0440/7446/7478/files/income_tax_slabs_for_ay_2020_19.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_off00006503.bin
1824db99f20d094978a4881cb68c1362c3fda495ee78ab52fbc045e7d96fcb63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6503 5464 bytes
font_01_sfnt_off000077a0.bin
14c40f64bea63b574ec0bc1c0816d569c32e45d7a77025fa63d221fd2e6fcece		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77A0 10400 bytes

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