Malicious PDF — malware analysis report

Static analysis result for SHA-256 e000ae8caf6e2939…

MALICIOUS

PDF

43.2 KB Created: 2020-08-12 20:06:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5d593a39c3f9c6aa8d1a5aa0c936eb91 SHA-1: 5f12aa92f11fcb6b4ea8fe9224b2788af2f4eb53 SHA-256: e000ae8caf6e29392b189ea91076e92ee6b1160af1d7e1251ecd5d2d76d3881a
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.cc/wb?keyword=drayton%20digistat%20scr%20manual'. This suggests the document is designed to lure users to malicious sites. 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/wb?keyword=drayton%20digistat%20scr%20manual
    • http://fodit.hisheritage.net/uploads/1/3/0/9/130969656/f6e8a24e.pdf
    • http://files.namasteesperanza.com/uploads/1/3/1/4/131454040/7463600.pdf
    • http://vopixex.lawrencevilleautoglassnetwork.net/uploads/1/3/1/0/131070458/mozerasewim.pdf
    • http://files.ku-iraqueer.org/uploads/1/3/1/4/131437056/vaderirixum_pixigozulinu_sekivujeb_tedevaxovilat.pdf
    • http://files.bubakes.co.uk/uploads/1/3/1/4/131482884/pomifagud.pdf
    • https://cdn.shopify.com/s/files/1/0433/3250/1656/files/15536864290.pdf
    • https://cdn.shopify.com/s/files/1/0429/7608/4117/files/38659376414.pdf
    • https://cdn.shopify.com/s/files/1/0445/6103/9524/files/crush_it_gary_vaynerchuk.pdf
    • https://cdn.shopify.com/s/files/1/0441/4255/9384/files/bo_burnham_lower_your_expectations.pdf
    • https://cdn.shopify.com/s/files/1/0429/7578/9215/files/60256966132.pdf
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/nisukoruvakogusexixepuni.pdf
    • https://cdn.shopify.com/s/files/1/0431/3504/1685/files/52132027229.pdf
    • https://cdn.shopify.com/s/files/1/0433/7870/4536/files/44596510227.pdf
    • https://cdn.shopify.com/s/files/1/0433/8148/9813/files/class_d_audio_amplifier_design.pdf
    • https://cdn.shopify.com/s/files/1/0438/5836/2528/files/twisted_fate_guide.pdf
    • https://cdn.shopify.com/s/files/1/0429/2778/4095/files/wivikofarizuwogufepojadi.pdf
    • https://cdn.shopify.com/s/files/1/0429/1756/0473/files/anatomy_and_physiology_coloring_workbook_answers_chapter_3.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_off000065b6.bin
ea193f13498838b013b056de4b9a96e01bf6b683c1dfea431e6be8899e21e89d
pdf-font-stream PDF embedded font (sfnt) at offset 0x65B6 5360 bytes
font_01_sfnt_off000077de.bin
1b31c3240e2b12d1617d8701312538260ff2e7d3cf209736e5bedde311fdca43
pdf-font-stream PDF embedded font (sfnt) at offset 0x77DE 12592 bytes