Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a7cd9a3ecc8afb0…

MALICIOUS

PDF

44.1 KB Created: 2020-08-07 20:28:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 90db6768ce1c9739aee539a1bd128a01 SHA-1: 7a7e9d055f789e4528e1d9fd1091bf491c3b7550 SHA-256: 9a7cd9a3ecc8afb0eb7f77cdecdf844137bde19cf1ed9cbde62a986a729be2c3
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'alphabetical series reasoning questions pdf' and the malicious URL. This suggests a phishing or social engineering attempt to redirect the user to malicious content. No scripts were extracted, limiting the analysis of further stages.

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.ru/pify?keyword=alphabetical+series+reasoning+questions+pdf
    • http://files.buildhealthyseniors.com/uploads/1/3/0/8/130813988/67c91d4d2.pdf
    • http://files.drfaridyounos.com/uploads/1/3/0/7/130740177/dudobewobajogirej.pdf
    • http://files.newdundeefireworks.com/uploads/1/3/1/8/131858481/vivosovipisojened.pdf
    • https://cdn.shopify.com/s/files/1/0428/5107/4214/files/76467134504.pdf
    • https://cdn.shopify.com/s/files/1/0433/5026/1911/files/vigepekimurut.pdf
    • https://cdn.shopify.com/s/files/1/0433/9122/1923/files/18288130851.pdf
    • https://cdn.shopify.com/s/files/1/0432/9648/9632/files/tederebinemizaxufilo.pdf
    • https://cdn.shopify.com/s/files/1/0437/1188/9562/files/tamigolo.pdf
    • https://cdn.shopify.com/s/files/1/0429/0258/5500/files/rizivajabefevekosaxijolu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0581/2629/files/gosopo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/20458424294.pdf
    • https://cdn.shopify.com/s/files/1/0434/1094/8254/files/3088518741.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lomapatigusobotatijizu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52325197595.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_off0000679e.bin
0f2421fe87bbb980706ec1ec04b35cdb57a8ef8228e5b209159c2ea4a24077ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x679E 5672 bytes
font_01_sfnt_off00007acb.bin
75663528fd55cb51ac4546b4b04d851fccfd23ea7ab578907c2d19b254dd3dcd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ACB 12872 bytes

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