Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f977de08cde3909…

MALICIOUS

PDF

51.2 KB Created: 2020-08-10 18:54:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0aa29b01ff57e56fe1ea390eacaca80b SHA-1: b6e7217b3c468c2cf8474a681f6c3551f1bf052a SHA-256: 3f977de08cde3909cd6e825801293f7808acc12504675fcf6d19c9d897d8afa5
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a malicious redirector link and a mass external PDF link farm, indicating a phishing or scam attempt. The presence of a 'download button' heuristic further supports the lure. The primary malicious IOC is the ttraff.cc redirector, which likely leads to further malicious content.

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=bottle+makers+and+their+marks.+pdf
    • http://files.chickskicksboots.com/uploads/1/3/2/6/132681207/3869ffc34b.pdf
    • http://files.elyrialaw.com/uploads/1/3/2/6/132682966/xowifu.pdf
    • http://tasosinu.dladair-fiction-writer.com/uploads/1/3/0/7/130739777/94bde9d7e8518.pdf
    • http://files.colonialprinter.net/uploads/1/3/1/4/131483719/naxusasa_pitefipezapawi_nowibunamadaxi_fodof.pdf
    • https://cdn.shopify.com/s/files/1/0430/3106/8825/files/soveju.pdf
    • https://cdn.shopify.com/s/files/1/0432/6578/6006/files/27034044895.pdf
    • https://cdn.shopify.com/s/files/1/0429/9862/8501/files/pikozowaxof.pdf
    • https://cdn.shopify.com/s/files/1/0429/2778/4095/files/24735348649.pdf
    • https://cdn.shopify.com/s/files/1/0436/0998/1085/files/wumokobiwuxapobuwevivif.pdf
    • https://cdn.shopify.com/s/files/1/0428/7276/6631/files/49155711653.pdf
    • https://cdn.shopify.com/s/files/1/0434/6940/6360/files/rejugujivoxidato.pdf
    • https://cdn.shopify.com/s/files/1/0432/2410/5115/files/faxetubavofifajovegetap.pdf
    • https://cdn.shopify.com/s/files/1/0431/9110/7742/files/past_present_and_future_tense_words.pdf
    • https://cdn.shopify.com/s/files/1/0441/0372/9304/files/56862489838.pdf
    • https://cdn.shopify.com/s/files/1/0434/4276/5976/files/37462154996.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_off00008949.bin
d70aa7b71a14d29a6ee4fd0d24d429d0816685909e6457e583786cde5d32070d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8949 5424 bytes
font_01_sfnt_off00009b92.bin
a40b05e407589cdeb6f676f3c7c41446189498d9e62f714b341a8927ed925e49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B92 10724 bytes

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