Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1247d1f4b254861…

MALICIOUS

PDF

52.2 KB Created: 2020-09-11 00:00:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72af11e1d4eef6faccd6ef266dabefa2 SHA-1: 216c99256456922848f58574cf8e522306add2d3 SHA-256: a1247d1f4b25486173d8addafeff5993aa92ff06d0d6ffd04fa8d09c319ec9c1
120 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.club/pify?keyword=ar+rahman+songs++naa+songs'. This indicates the document's primary purpose is to lure users to this malicious site. The presence of a PDF link farm heuristic further supports the malicious intent of distributing links. No scripts were extracted, but the embedded URL is sufficient evidence for the attack pattern.

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.club/pify?keyword=ar+rahman+songs++naa+songs
    • http://files.craftsmancctv.com/uploads/1/3/0/8/130813804/guxojajevinel.pdf
    • http://wijapovil.chosenchow.com/uploads/1/3/1/3/131379846/2b43de5b27470b.pdf
    • http://watinire.circlegoutdoors.com/uploads/1/3/0/7/130739845/1182555.pdf
    • http://files.pdcscuba.com/uploads/1/3/0/9/130968933/847753a7329c0.pdf
    • http://files.thehulahut.ca/uploads/1/3/1/4/131453086/xebadonod_bitazuzut_rigazinare.pdf
    • https://cdn.shopify.com/s/files/1/0432/1784/6427/files/lady_midnight_book_1_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/wenapepetaretewigisaso.pdf
    • https://cdn.shopify.com/s/files/1/0430/9054/2753/files/rukov.pdf
    • https://cdn.shopify.com/s/files/1/0430/0147/9321/files/13313957013.pdf
    • https://cdn.shopify.com/s/files/1/0435/2478/4292/files/absolute_value_word_problems_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0434/0993/2439/files/zubifidoxawezusimogaje.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008641.bin
b00cbcaa6e719d9f7218775d8e23d6274c26a20aa4c54dfbd986197bfad67f18		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8641 5056 bytes
font_01_sfnt_off00009749.bin
b1782c66e84611f060de8cd211d9350adbe60839c95e6571d568fc6ff3d3dfcf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9749 14248 bytes

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