Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf0aa6aef8cc326a…

MALICIOUS

PDF

50.5 KB Created: 2020-08-05 13:04:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 04f6964f604b6470deaf73f4325fb0db SHA-1: d3e3ad2be08049e30b850551b59b48903bafd18e SHA-256: bf0aa6aef8cc326a75075d98019da2570420d20d7b5e8cdc07381173343b59eb
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=kabbalah+magic+in+urdu+pdf'. The document body, though heavily obfuscated, contains this same URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=kabbalah+magic+in+urdu+pdf
    • http://fevuz.choro-choro.com/uploads/1/3/1/3/131383791/1282933.pdf
    • http://files.thehigginsreport.com/uploads/1/3/0/7/130738712/rapozoxetuju_savoxad_zopino_gezob.pdf
    • http://files.cetlgroup.org/uploads/1/3/0/7/130739510/5dc429931.pdf
    • http://files.designsbydebllc.com/uploads/1/3/1/3/131380308/3202943.pdf
    • https://cdn.shopify.com/s/files/1/0430/3791/7345/files/36054783142.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97897646990.pdf
    • https://cdn.shopify.com/s/files/1/0427/7082/5382/files/chamakam_tamil_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/0574/7095/files/two_faces_of_my_girlfriend.pdf
    • https://cdn.shopify.com/s/files/1/0447/3857/6533/files/indent_on_google_sheets.pdf
    • https://cdn.shopify.com/s/files/1/0431/8973/1479/files/85265375406.pdf
    • https://cdn.shopify.com/s/files/1/0431/7442/8827/files/posufabosufolibolisalozup.pdf
    • https://cdn.shopify.com/s/files/1/0428/4186/6403/files/32516646433.pdf
    • https://cdn.shopify.com/s/files/1/0434/5298/9605/files/gukumikokowajuvepos.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/16175378270.pdf
    • https://cdn.shopify.com/s/files/1/0433/2768/4760/files/bejajenoromi.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/
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97897646990

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007fe2.bin
95e28a0e3fcbf0fb14e8f5f66039b823d19cb2b4c7d3d3230f1607dc662661b8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE2 5500 bytes
font_01_sfnt_off0000926d.bin
883ad0c41d170a56fe405181b9bef106ff9c78d6a6b5e9b2b225943c2cd16ba2
pdf-font-stream PDF embedded font (sfnt) at offset 0x926D 13492 bytes