Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e5cfe025f78b720…

MALICIOUS

PDF

49.5 KB Created: 2020-08-14 09:08:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b7e410dcf21390a5cdfc5818af2d764 SHA-1: e349bfdea6fccaf0e925b54161888a66b36f3c40 SHA-256: 4e5cfe025f78b720feddd29abe2e60b407aad69187d8af48a591b33018367db1
120 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which, https://ttraff.com/pify?keyword=anomalias+congenitas+del+aparato+reproductor+femenino+pdf, is flagged as a malicious redirector. The document body, though heavily obfuscated, appears to contain references to this URL and other benign-looking Shopify links, suggesting a lure to a malicious site. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK directly supports this finding.

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.com/pify?keyword=anomalias+congenitas+del+aparato+reproductor+femenino+pdf
    • http://files.butterfieldsofantrim.com/uploads/1/3/1/1/131163492/5498954.pdf
    • http://bepazulum.masonshopperton.co.uk/uploads/1/3/2/6/132696030/gefane-pimeda.pdf
    • http://files.elizabethverver.com/uploads/1/3/0/7/130775249/1a16cc6e21242be.pdf
    • http://files.artistscoalitionforevents.com/uploads/1/3/1/4/131407901/pejafi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1695/3751/files/30892352965.pdf
    • https://cdn.shopify.com/s/files/1/0431/6866/1670/files/online_calendar_template_march_2019.pdf
    • https://cdn.shopify.com/s/files/1/0437/1123/4197/files/wirixuzemujibafa.pdf
    • https://cdn.shopify.com/s/files/1/0432/8728/1832/files/rirolujugixajuw.pdf
    • https://cdn.shopify.com/s/files/1/0443/6826/5372/files/abiogenesis_vs_biogenesis.pdf
    • https://cdn.shopify.com/s/files/1/0434/0767/1447/files/angaraka_stotram_in_telugu_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/5770/8193/files/1639437133.pdf
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/afmc_syllabus_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/7045/5965/files/75806036764.pdf
    • https://cdn.shopify.com/s/files/1/0440/7659/7400/files/66427750501.pdf
    • https://cdn.shopify.com/s/files/1/0433/0360/0283/files/laxofiluxufumike.pdf
    • https://cdn.shopify.com/s/files/1/0436/7125/7241/files/bharathiyar_kavidhaigal_with_meaning.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_off000071b4.bin
cc9f233e4e385f90d35a7f2792d734e44bad49c26ccbbe4bf2880b1a5b6b7b95
pdf-font-stream PDF embedded font (sfnt) at offset 0x71B4 5344 bytes
font_01_sfnt_off000083ba.bin
a16eaab3a8459029c540b93f58db85bdbdcb161a83bd7fa1f9d8af7f306d6400
pdf-font-stream PDF embedded font (sfnt) at offset 0x83BA 11128 bytes
font_02_sfnt_off0000a819.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xA819 4324 bytes