Malicious PDF — malware analysis report

Static analysis result for SHA-256 1aa4254c4bd9bcef…

MALICIOUS

PDF

55.6 KB Created: 2020-08-14 10:43:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 416d05b6464a571a2a27543e1e4b684e SHA-1: d8166b3b27553381355531e77bdcb584bdcb9ee8 SHA-256: 1aa4254c4bd9bcef8b91d06a41d137ced723d6ab2496367fabb8bc4f08347f39
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=devi+chitralekha+ji+songs+free'. It also contains a heuristic for a PDF link farm, with numerous links to Shopify-hosted PDFs. The document body contains obfuscated text and the malicious URL, suggesting a lure to trick users into clicking the link. No scripts were extracted from this sample.

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=devi+chitralekha+ji+songs+free
    • http://files.wingsofhopemankato.com/uploads/1/3/1/8/131871642/67edb0e.pdf
    • http://files.goshawarmastop.com/uploads/1/3/0/8/130874583/rumevimaneja_bogixe_fabadike.pdf
    • http://files.canadamt.com/uploads/1/3/1/4/131409574/5612647.pdf
    • http://files.organichead2toe.com/uploads/1/3/2/7/132710732/598294.pdf
    • http://files.rootedaltarministries.org/uploads/1/3/0/8/130874469/vijogale_sizurub_mapexipi_dukobeg.pdf
    • https://cdn.shopify.com/s/files/1/0432/9861/9557/files/61565449321.pdf
    • https://cdn.shopify.com/s/files/1/0434/0062/6341/files/14206394844.pdf
    • https://cdn.shopify.com/s/files/1/0431/7272/4897/files/area_of_similar_triangles_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0440/5110/3894/files/minecraft_server_status_bot_discord.pdf
    • https://cdn.shopify.com/s/files/1/0437/6467/8817/files/36861544522.pdf
    • https://cdn.shopify.com/s/files/1/0437/8161/9861/files/carcel_de_amor_carol_marinelli.pdf
    • https://cdn.shopify.com/s/files/1/0433/7316/6744/files/34328551126.pdf
    • https://cdn.shopify.com/s/files/1/0428/7673/1558/files/54997456473.pdf
    • https://cdn.shopify.com/s/files/1/0434/3123/1649/files/20663228567.pdf
    • https://cdn.shopify.com/s/files/1/0429/2011/6387/files/fulton_county_daily_report.pdf
    • https://cdn.shopify.com/s/files/1/0439/3838/1992/files/75211832157.pdf
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/carrier_oils_for_aromatherapy_and_massage.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_off00008c4e.bin
521a4711a8564d60cf50a4980137ffd40b279457dda9f3a8d5eb14994e636799		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C4E 5340 bytes
font_01_sfnt_off00009e82.bin
94038c6a21d32998f8d7012bdfa823c7b5b0fce9a4d079d4c7a0067beaeef060		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E82 15576 bytes

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