Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cd6bcbade31df06…

MALICIOUS

PDF

46.6 KB Created: 2020-08-28 09:56:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bc87cb3cb3f5a919ef0b894d0bd249d SHA-1: 4da730a86a11fe81fea1ee81487530e0a935522c SHA-256: 7cd6bcbade31df0689cba2558dda8aee81cfe5dbe0a4a27a8eee17b5c0d4ea38
168 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a lure for a 'Kaspersky trial reset' and embeds numerous links, including a critical redirector link to 'ttraff.cc'. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates a social-engineering path for malware installation or credential theft. The presence of a malicious redirector suggests the document is designed to lead the user to a compromised or malicious site.

Heuristics 5

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=kaspersky+trial+reset+90+days
    • http://files.christieslines.com/uploads/1/3/1/4/131437728/25e8408b.pdf
    • http://files.thewondermart.shop/uploads/1/3/0/7/130739264/5ba55a98.pdf
    • http://voliwifaz.anniarts.com/uploads/1/3/1/4/131452972/samajazutonu.pdf
    • http://wedibeda.victoriavisions.com/uploads/1/3/0/7/130775350/80d3b.pdf
    • https://cdn.shopify.com/s/files/1/0432/6824/3624/files/yaseen_sharif.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71409998288.pdf
    • https://cdn.shopify.com/s/files/1/0431/5863/4650/files/rejevunawedode.pdf
    • https://cdn.shopify.com/s/files/1/0446/0707/8564/files/menadifotidobujubelutawo.pdf
    • https://cdn.shopify.com/s/files/1/0432/0352/6820/files/bimugodejijajuzupa.pdf
    • https://cdn.shopify.com/s/files/1/0431/6053/5196/files/tabela_de_riscos_ambientais.pdf
    • https://cdn.shopify.com/s/files/1/0430/5757/8138/files/melesakesogerajeluv.pdf
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/3_table_euchre_score_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0435/7757/3539/files/da_1380.pdf
    • https://cdn.shopify.com/s/files/1/0463/7858/2171/files/96893685725.pdf
    • https://cdn.shopify.com/s/files/1/0428/2259/8823/files/nebetepimofejusipoxeme.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_off000076f1.bin
4ad4d06ffda67e673f50fd7d39352542952eb69bc5a74edc8f5cbc06c88537c0
pdf-font-stream PDF embedded font (sfnt) at offset 0x76F1 5388 bytes
font_01_sfnt_off00008956.bin
1d0ea2d4d8a4a8ed4e5dee42b0c504660a05a3f20ffb895103a15e6f21bcbb11
pdf-font-stream PDF embedded font (sfnt) at offset 0x8956 10868 bytes