Malicious PDF — malware analysis report

Static analysis result for SHA-256 288527ab565a9240…

MALICIOUS

PDF

51.2 KB Created: 2020-08-27 16:01:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b7858bc3e14e49dba6a521d08578c6ac SHA-1: c48dce96debf4f6cb652af3f2184472e2a1fcaaf SHA-256: 288527ab565a92404bb0bbc56fe513a7fbadd9e72c5258656d929aa40f975c2e
150 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing a malicious redirector link and a large number of external links, suggesting a link farm or SEO poisoning attempt. The primary malicious URL identified is https://ttraff.link/pify?keyword=jackson+%25C3%25A9cole+secondaire+publique+de. While no scripts were extracted, the structure and heuristics strongly indicate a phishing or redirection attack designed to lead users to harmful content.

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.link/pify?keyword=jackson+%25C3%25A9cole+secondaire+publique+de
    • http://files.successtutoringni.com/uploads/1/3/1/4/131454034/majutapejow.pdf
    • http://files.namiraswad.com/uploads/1/3/2/6/132696104/pajor.pdf
    • http://zizadeb.home-views.com/uploads/1/3/0/9/130969054/58ff1c0.pdf
    • http://files.theseasonalapothecary.com/uploads/1/3/0/7/130776601/69373.pdf
    • http://files.pmle567.com/uploads/1/3/1/4/131453998/xajipobelapurido.pdf
    • http://files.successtutoringni.com/upl
    • https://cdn.shopify.com/s/files/1/0430/9496/6421/files/fanatid.pdf
    • https://cdn.shopify.com/s/files/1/0433/7090/5756/files/free_listening_comprehension_worksheets_for_kindergarten.pdf
    • https://cdn.shopify.com/s/files/1/0435/3343/5032/files/amumu_jungle_path.pdf
    • https://cdn.shopify.com/s/files/1/0462/9449/9489/files/71055727368.pdf
    • https://cdn.shopify.com/s/files/1/0438/0105/1293/files/nursing_care_plan_for_neonatal_jaundice.pdf
    • https://cdn.shopify.com/s/files/1/0431/0581/2629/files/jirikomexixe.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9590150980.pdf
    • https://cdn.shopify.com/s/files/1/0428/9141/1615/files/jekotajujoxizumemipot.pdf
    • https://cdn.shopify.com/s/files/1/0439/4388/7016/files/76765562544.pdf
    • https://cdn.shopify.com/s/files/1/0433/0189/6347/files/xomuletupozosepinenelo.pdf
    • https://cdn.shopify.com/s/files/1/0433/3751/5176/files/political_map_of_the_world.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006b98.bin
22c87fba54f0b73839f9d0959610a638c315a1b5a11fc00c0f34d320e52ad71d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B98 5328 bytes
font_01_sfnt_off00007d60.bin
2fa5c6a671c84b55fe7e971f31826539e91170e5e06532fab8ffc06b468c6e03
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D60 16504 bytes
font_02_sfnt_off0000aebd.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xAEBD 4324 bytes