Malicious PDF — malware analysis report

Static analysis result for SHA-256 222457ecba311b59…

MALICIOUS

PDF

44.2 KB Created: 2020-08-13 15:38:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5acc4f4cd6176014c5156ba929491d35 SHA-1: 17d1ee2f0fb56036d2dfe5c20227519ba7d6611b SHA-256: 222457ecba311b59d677c3226318831cb06dadfbcc2765deffd0cce065bccfb4
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of the primary links redirects to a known malicious infrastructure at 'ttraff.cc'. This suggests a link farm or redirection attack designed to lead users to 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.cc/pify?keyword=actus+hominis+dan+actus+humanus+pdf
    • http://files.emeryjewelzshop.com/uploads/1/3/1/0/131070508/bobafinezuwodav.pdf
    • http://bopezap.windsorpoetryslam.com/uploads/1/3/1/6/131607600/kekegowegilinuwan.pdf
    • http://files.crispusattucksalumnilettermen.com/uploads/1/3/0/7/130740391/wapenitodebi.pdf
    • http://titanudav.royalstalkcrew.com/uploads/1/3/1/4/131437601/wojodosibagesaw_nuruwiwomuruv_deresawasi_memirijokaw.pdf
    • https://cdn.shopify.com/s/files/1/0428/1516/0487/files/57457068835.pdf
    • https://cdn.shopify.com/s/files/1/0454/3682/9854/files/adding_integers_worksheet_grade_7.pdf
    • https://cdn.shopify.com/s/files/1/0430/7307/7409/files/kuxebagixamuzelovoni.pdf
    • https://cdn.shopify.com/s/files/1/0433/0940/0214/files/wuzufiwulugisevak.pdf
    • https://cdn.shopify.com/s/files/1/0429/6884/2393/files/jibogu.pdf
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/download_buku_akuntansi_manajemen_mulyadi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0364/0999/files/jipimikifo.pdf
    • https://cdn.shopify.com/s/files/1/0429/5108/2143/files/65561998326.pdf
    • https://cdn.shopify.com/s/files/1/0428/7404/4579/files/24279767453.pdf
    • https://cdn.shopify.com/s/files/1/0430/2379/4337/files/buzinulosasigawafu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5865/8456/files/zakinevumumudalasawefuki.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_off00006140.bin
a28fcc4ba65d8171a55e8b87d646ac5d1dd213f66ab2b0026fd39e5ca5d32d1a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6140 2900 bytes
font_01_sfnt_off00006b82.bin
c6a3fe751453aa2043439de9437d3a415c5c63f68695e4efcf67f0d5298ff7b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B82 5256 bytes
font_02_sfnt_off00007d48.bin
00a1636b7f834ae2838d6de7243f424d3e8b13a7fc074b10060959f6a8730fc6
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D48 10944 bytes