Malicious PDF — malware analysis report

Static analysis result for SHA-256 da9345a2b36546de…

MALICIOUS

PDF

59.9 KB Created: 2020-07-08 21:58:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 81519c03e89b8109064f74cd712f85fd SHA-1: 576f7fbc104318461d1f8080638c80f205302ce8 SHA-256: da9345a2b36546de38dc37294a18d7a8fbfc5436b109f8531f010ebbe856d584
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Telesis pinstamp tmp3200 manual' and a URL that matches the malicious redirector. This suggests the document is designed to trick users into visiting a compromised site, likely for further exploitation or malware delivery.

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/wb?keyword=telesis%20pinstamp%20tmp3200%20manual
    • http://files.dylanness.com/uploads/1/3/0/9/130969819/860cb.pdf
    • http://files.oakleytransport.com/uploads/1/3/0/8/130873798/sumon-zudisavak-budikabiwaramip-tuwilo.pdf
    • http://files.mcmillanvetclinic.com/uploads/1/3/1/8/131872178/siterixuw.pdf
    • http://files.daysofexploration.com/uploads/1/3/1/4/131437454/7640279.pdf
    • http://files.gembalina.com/uploads/1/3/1/8/131856034/kisokes.pdf
    • http://files.adventuresinlibraryland.com/uploads/1/3/1/3/131378779/ruxekawab.pdf
    • http://files.rivelazioniprivate.org/uploads/1/3/1/4/131437636/zuzevelo-derazuxuwur-rigexidevazofep-katetuvod.pdf
    • http://files.callylawson.co.uk/uploads/1/3/1/4/131408930/dogubi.pdf
    • http://files.outofthedarknessgriefsupport.com/uploads/1/3/0/7/130776100/a5567c8ee4076b.pdf
    • http://files.camralsolutions.com/uploads/1/3/1/4/131454172/gosalebobasiwasolo.pdf
    • http://files.theroute92.com/uploads/1/3/0/8/130873973/zuguxizamuri.pdf
    • http://files.outofthedarknessgriefsupport.com/upload
    • https://xijivoziz.files.wordpress.com/2020/06/13418071051.pdf
    • https://linujidiru785249151.files.wordpress.com/2020/06/podilokikipo.pdf
    • https://mepudaki.files.wordpress.com/2020/07/17370757217.pdf
    • https://ritiduka.files.wordpress.com/2020/06/18607980089.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42479515564.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/febipak.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jepomosojavadoji.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_off0000974d.bin
0936a7299b329f3556445f8d8f53e306d132096e362cf2f78827c8121f7ef8fd
pdf-font-stream PDF embedded font (sfnt) at offset 0x974D 5028 bytes
font_01_sfnt_off0000a844.bin
c03ce230b670cfbeab4e5cc53d2e3d3d65531e86662a92f0d40a032499ff8df7
pdf-font-stream PDF embedded font (sfnt) at offset 0xA844 10800 bytes
font_02_sfnt_off0000cd2a.bin
e062faff0b5f3d12ef96d17a813e209689a07cec8984531399442ab350abe39b
pdf-font-stream PDF embedded font (sfnt) at offset 0xCD2A 16136 bytes