Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d566c849b6266ed…

MALICIOUS

PDF

48.6 KB Created: 2020-08-08 03:54:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be1c2ba9e38a67bb1870008ff9f1a388 SHA-1: d9fef9023346c3dfe0c5089f1813d0a168c094a2 SHA-256: 1d566c849b6266ed3021672e3f39f25724835a30f6cd871404641d8bc7c0ef5d
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. The primary malicious URL identified is https://ttraff.ru/pify?keyword=g%25C3%25A9n%25C3%25A9ralit%25C3%25A9s+sur+les+automates+programmables+industriels+pdf. While no scripts were extracted, the sheer volume of embedded links and the specific heuristic firings strongly indicate a malicious intent, likely to lure users to compromised or malicious sites.

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.ru/pify?keyword=g%25C3%25A9n%25C3%25A9ralit%25C3%25A9s+sur+les+automates+programmables+industriels+pdf
    • http://files.vbsmontecarlo.com/uploads/1/3/1/3/131381150/pajukadete.pdf
    • http://joxakos.getfitz4life.com/uploads/1/3/1/4/131453870/nemuziduxaj.pdf
    • http://files.antoinettemusicministry.com/uploads/1/3/1/4/131453934/5129002.pdf
    • http://files.canadiancomponents.com/uploads/1/3/0/7/130775953/jibitofipusoje_duterela_muvobuka_nowane.pdf
    • http://files.potusnewschannel.com/uploads/1/3/1/1/131164047/rejutex-tozimorewexi.pdf
    • https://cdn.shopify.com/s/files/1/0435/3975/9259/files/through_composed_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/85781287434.pdf
    • https://cdn.shopify.com/s/files/1/0431/4978/7285/files/8249668692.pdf
    • https://cdn.shopify.com/s/files/1/0435/0004/4454/files/directv_hr54-_500_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/7393/6291/files/cctv_camera_dvr_installation.pdf
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/59108368807.pdf
    • https://cdn.shopify.com/s/files/1/0437/1241/3847/files/american_english_file_1_workbook_answer.pdf
    • https://cdn.shopify.com/s/files/1/0432/5546/4104/files/kizufebavije.pdf
    • https://cdn.shopify.com/s/files/1/0429/7896/7703/files/riwewibejijovokales.pdf
    • https://cdn.shopify.com/s/files/1/0434/1910/7480/files/4711149724.pdf
    • https://cdn.shopify.com/s/files/1/0445/5481/3599/files/acstx_fact_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/4892/7386/files/rusixutuvox.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_off00007a1d.bin
b572b499747e8b9042a7eb5d56839c2a12b04fa95e6f464d5c97eec27a202aee
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1D 5672 bytes
font_01_sfnt_off00008d06.bin
c90b56a4643243b427e0b1208e7147ec828eb102b135588b2f5b2cf255aeed23
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D06 11992 bytes