Malicious PDF — malware analysis report

Static analysis result for SHA-256 f86131d440ba9038…

MALICIOUS

PDF

42.5 KB Created: 2020-08-25 12:24:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f13c4e91076be64bb9dabbe1cacf9839 SHA-1: d1793353069650d8d86776b7688d15423f37a09e SHA-256: f86131d440ba9038bf60b90e4d66b14f5c4d8e7c941ee7134dde61f78534dd15
130 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=free+printable+minnie+mouse+bow+template'. This URL is presented within the document body, disguised as a template download. The file also exhibits characteristics of a link farm, with numerous external PDF links, many hosted on Shopify. The primary malicious URL is likely intended to lead the user to a phishing or malware distribution site.

Heuristics 4

  • 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.
  • 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=free+printable+minnie+mouse+bow+template
    • http://tekufa.plymouthcountyfire.com/uploads/1/3/1/4/131453194/zuxege.pdf
    • http://diloxozo.kleinandpartners.com/uploads/1/3/1/8/131856207/a7675386488a4df.pdf
    • http://dafoter.maocorrea.com/uploads/1/3/1/4/131406507/bapotuzuta.pdf
    • https://cdn.shopify.com/s/files/1/0434/3549/1490/files/syracuse_weather_10_day_forecast.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8402105605.pdf
    • https://cdn.shopify.com/s/files/1/0432/8852/7013/files/fujonuvofumemumozapomik.pdf
    • https://cdn.shopify.com/s/files/1/0433/3849/8206/files/57609128056.pdf
    • https://cdn.shopify.com/s/files/1/0434/0976/8604/files/e_business_journal_article.pdf
    • https://cdn.shopify.com/s/files/1/0429/4619/9711/files/xufudugevazaboguzep.pdf
    • https://cdn.shopify.com/s/files/1/0432/6440/9755/files/gedijopiberodebimigi.pdf
    • https://cdn.shopify.com/s/files/1/0433/5196/5855/files/kezimejofo.pdf
    • https://cdn.shopify.com/s/files/1/0439/7475/4462/files/glosario_de_epidemiologia_veterinaria.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/biopsy_report_of_ectopic_pregnancy.pdf
    • https://cdn.shopify.com/s/files/1/0431/6423/7992/files/78895412255.pdf
    • https://cdn.shopify.com/s/files/1/0431/3396/0341/files/wuxibosezex.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_off000068fa.bin
642a41336306b1179204c33da44871d95ede54f651e043af695b67af6626981d
pdf-font-stream PDF embedded font (sfnt) at offset 0x68FA 5152 bytes
font_01_sfnt_off00007a70.bin
8ad099677b0d2b9178c37c8ab01f8ca9e7a8c15224a5824284cefcb6a0ffe8a7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A70 10200 bytes