Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee05366d5847d4af…

MALICIOUS

PDF

56.5 KB Created: 2020-08-30 09:41:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c39b71161d4e5b24d3e544018c78f6f8 SHA-1: 4e320ea5b387909f26e43a803dec1fcc7a3e2021 SHA-256: ee05366d5847d4af1fa9190840b0abe8cf87d7414b5a4c4c848c40bd6056b634
150 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating a link to malicious infrastructure. The embedded URL `https://ttraff.cc/wix?keyword=hotline+miami+2+unblocked+games` is present in the document body and is likely intended to redirect the user to a malicious site. The PDF also exhibits characteristics of a link farm, suggesting a broader campaign of SEO manipulation or phishing.

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/wix?keyword=hotline+miami+2+unblocked+games
    • https://cdn.shopify.com/s/files/1/0431/4352/8609/files/marawojonujiti.pdf
    • https://cdn.shopify.com/s/files/1/0431/4651/0493/files/roll20_character_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0462/4400/3989/files/cardiac_arrest.pdf
    • https://static.usrfiles.com/ugd/b8c837_68914df9eb4a44ecb18c928ff4647439.pdf
    • https://static.usrfiles.com/ugd/3aca14_bfeb586379784c95965c8c9409b2bf5d.pdf
    • https://cdn.shopify.com/s/files/1/0432/1171/8820/files/80190855584.pdf
    • https://cdn.shopify.com/s/files/1/0433/2018/0894/files/buddha_quotes_in_malayalam.pdf
    • https://cdn.shopify.com/s/files/1/0433/4485/5195/files/benim_hocam_tarih_ders_notu.pdf
    • https://cdn.shopify.com/s/files/1/0428/4219/4083/files/livigepemulasetarivejulo.pdf
    • https://cdn.shopify.com/s/files/1/0433/2643/9582/files/ielts_speaking_cue_card_2020_topics_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0433/8198/1347/files/cancer_de_prostata_tratamiento.pdf
    • https://cdn.shopify.com/s/files/1/0428/3770/4867/files/14735136053.pdf
    • https://cdn.shopify.com/s/files/1/0462/6884/2146/files/smiley_face_notification_icon_android.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_off00009c82.bin
15e9e1e3ed4ef88516fb171638577882e5d011ecd6121868f55c2124ddf5ec2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9C82 5460 bytes
font_01_sfnt_off0000aef9.bin
ffa061c77955ea85c0f793dcb67e134e0f83cab81021422f559c7a02944ba6cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAEF9 11244 bytes

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