Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e30174804b95b21…

MALICIOUS

PDF

46.7 KB Created: 2020-07-18 21:52:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54c0733960bb10e008ae8eee93da6653 SHA-1: d8a00382838d20afeccc2e256bee80cb199851b3 SHA-256: 1e30174804b95b2134bfb8801a295d59afe46014c4d6cec8268e6b7885d0a0e1
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.ru. This indicates the document's primary purpose is to redirect the user to a malicious site. The PDF also contains a large number of external links, suggesting a link farm for SEO manipulation to increase visibility of malicious content. 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.ru/wb?keyword=panchayati%20raj%20system%20in%20bihar%20pdf
    • http://files.lipsmonsherri.com/uploads/1/3/0/7/130739015/nafena.pdf
    • http://files.michaelcullipher.com/uploads/1/3/0/9/130969999/caab5262712d.pdf
    • http://files.hopeforhispaniola.org/uploads/1/3/1/0/131070137/bazebil.pdf
    • https://xetadezib.files.wordpress.c
    • https://buluzoti.files.wordpress.com/2020/06/19121900243.pdf
    • https://sedoduduvajo.files.wordpress.com/2020/07/wawigedezupupawuwanamo.pdf
    • https://ximajisifije.files.wordpress.com/2020/07/44113805050.pdf
    • https://dimexemivega.files.wordpress.com/2020/07/10082416114.pdf
    • https://pomufoj.files.wordpress.com/2020/07/7784063810.pdf
    • https://xetadezib.files.wordpress.com/2020/07/63904338386.pdf
    • https://pafibifum.files.wordpress.com/2020/07/sixozavuzajeroguj.pdf
    • https://xumufikok.files.wordpress.com/2020/06/19990763083.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96626323422.pdf
    • https://cdn.shopify.com/s/files/1/0432/2931/5239/files/8861696828.pdf
    • https://cdn.shopify.com/s/files/1/0430/0531/3177/files/mamusoga.pdf
    • https://cdn.shopify.com/s/files/1/0433/5537/3720/files/86854184245.pdf
    • https://cdn.shopify.com/s/files/1/0435/4208/5783/files/61084818405.pdf
    • https://cdn.shopify.com/s/files/1/0437/7663/9134/files/varowaxufexeditedo.pdf
    • https://cdn.shopify.com/s/files/1/0433/6130/4728/files/lizupotenekopagokeg.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mosagewenusuwaguxizekud.pdf
    • https://cdn.shopify.com/s/files/1/0431/0056/9753/files/wefinezapatexumex.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xozujegemuzudileruzodedus.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_off0000797b.bin
db428dcefc2102b1b738e4dd35a8e88c4ec5f87b5fb404759b91e64c4a3227c4
pdf-font-stream PDF embedded font (sfnt) at offset 0x797B 5360 bytes
font_01_sfnt_off00008b7e.bin
6db6df5c7d1ac97b0b98ac230aa085ed82ea8ba58394c7550f01587b0e91a47b
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B7E 9848 bytes