Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb95b892b25a2daf…

MALICIOUS

PDF

45.5 KB Created: 2020-08-15 03:39:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 592e86944e86d17f0e62ab89df094566 SHA-1: 5b0032b392a501774f7ed220f3131bad4fdc657f SHA-256: bb95b892b25a2daf3fd4602b4a3d60dcc95578c9af0a0c25fd17f45b1fabb4de
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external PDF link farm, suggesting a tactic to manipulate search engine results or distribute malicious content. The presence of the 'ttraff.cc' redirector URL further supports the malicious intent.

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=orbulus+for+cardboard+vr+apk
    • http://dorodokob.theyintercept.com.au/uploads/1/3/1/3/131379179/divibobabo_fupiro_nikofowaw_sidasakexi.pdf
    • http://tivoseto.apexmedicalgas.com/uploads/1/3/1/1/131164250/fikepika-tigifenugab-luzaroku.pdf
    • http://ketag.michaelschunke.com/uploads/1/3/2/8/132814930/gogusotolejemem_tuxovisabeluli_nenosewesus.pdf
    • https://cdn.shopify.com/s/files/1/0431/2157/4049/files/google_chrome_latest_version_2019.pdf
    • https://cdn.shopify.com/s/files/1/0431/0591/0935/files/13455593604.pdf
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/89700531934.pdf
    • https://cdn.shopify.com/s/files/1/0434/6734/1981/files/65062877343.pdf
    • https://cdn.shopify.com/s/files/1/0432/7754/9726/files/mizibixasilikenuk.pdf
    • https://cdn.shopify.com/s/files/1/0428/1240/7967/files/29842613405.pdf
    • https://cdn.shopify.com/s/files/1/0438/0521/2832/files/81222487421.pdf
    • https://cdn.shopify.com/s/files/1/0428/5412/1635/files/96216713538.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_off00007446.bin
291edf42dff3cc535217664945a27a372d040cb3464514912c0c577a208788dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7446 5440 bytes
font_01_sfnt_off000086d2.bin
69f2e0ad1d175ed917e55ed6b09ac7d055e7699472c28ebd7da9b9e33f7d0cbc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86D2 10088 bytes

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