Malicious PDF — malware analysis report

Static analysis result for SHA-256 309d56269af40c68…

MALICIOUS

PDF

49.7 KB Created: 2020-08-22 13:00:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93f882b6bf3d41409ada508152275ea2 SHA-1: 1a631f4756a4d29f8e29bef10a51c1c89a45fab1 SHA-256: 309d56269af40c686d3ec1373a9835f0f5cae939ea9ec017ff5bda331f66474a
120 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to a redirector service. The primary redirector URL is https://ttraff.cc/pify?keyword=maplestory+reboot+ark+training+guide, which is known to lead to malicious infrastructure. This indicates the document is designed to lure users to malicious sites through a link farm, likely for further exploitation or phishing. No scripts were extracted from this sample.

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=maplestory+reboot+ark+training+guide
    • http://files.handwritingconsultants.com/uploads/1/3/0/7/130739081/tevudekudap.pdf
    • https://cdn.shopify.com/s/files/1/0434/0839/2353/files/miracle_shake_ed.pdf
    • https://cdn.shopify.com/s/files/1/0437/5409/4743/files/vuxopeveku.pdf
    • https://cdn.shopify.com/s/files/1/0434/1694/4807/files/danger_chamar_2_song.pdf
    • https://cdn.shopify.com/s/files/1/0448/3085/1233/files/anambra_basin.pdf
    • https://cdn.shopify.com/s/files/1/0440/8626/3960/files/nenaz.pdf
    • https://cdn.shopify.com/s/files/1/0438/3932/4325/files/incidencia_prevalencia.pdf
    • https://cdn.shopify.com/s/files/1/0434/8955/8680/files/5399883376.pdf
    • https://cdn.shopify.com/s/files/1/0431/5322/7936/files/nda_maths_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0436/5592/1822/files/relationship_attachment_style_test.pdf
    • https://cdn.shopify.com/s/files/1/0462/2083/7018/files/goal_setting_worksheet_middle_school.pdf
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/bubakefelixufijiboxa.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_off00007536.bin
b23f3d80fb523686fd5f357cfd10b4a795c24c9a8471579ef26c6f72f8e2f52d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7536 5440 bytes
font_01_sfnt_off000087cd.bin
ced25e9a22c9225efbeba766cab6454be175fed4120a4f5a46b64b2d6a23bc87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87CD 16364 bytes

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