Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa45c961a1ada71…

MALICIOUS

PDF

46.1 KB Created: 2020-07-30 08:46:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 884c6a5fa1b5565416458de5a7bdeee3 SHA-1: 7a6c9c97a5c74499e2088397ff31accaff8898df SHA-256: 2fa45c961a1ada716462a300506a6624cd542c65800fc3a923ffe3ad41d70187
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is designed to lure users to malicious content. It also exhibits a PDF link farm, a technique used to obscure malicious destinations. The document body, though heavily obfuscated, contains text related to 'startup business plan pdf', suggesting a social engineering pretext. The embedded URLs, particularly the one to 'ttraff.com', are the primary indicators of malicious intent.

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.com/pify?keyword=startup+business+plan+pdf
    • http://files.rachelawallis.com/uploads/1/3/1/4/131406173/2325c875ec1.pdf
    • http://files.medic-rescue.co.uk/uploads/1/3/1/6/131607075/d00e60c6e05ce28.pdf
    • http://files.loisbrezinskiartworks.com/uploads/1/3/1/4/131453214/b7cfb65d9d16e.pdf
    • http://files.solonoidstudio.com/uploads/1/3/1/6/131637419/lakejisugurima-nuwus-xukax.pdf
    • http://files.solonoidstudio.com/uploads/1/3/1
    • https://cdn.shopify.com/s/files/1/0434/1861/5975/files/jojotefowajudifedasekap.pdf
    • https://cdn.shopify.com/s/files/1/0433/3443/4969/files/vavagodatozibegimivixod.pdf
    • https://cdn.shopify.com/s/files/1/0435/3579/4344/files/joguxunelagaz.pdf
    • https://cdn.shopify.com/s/files/1/0431/7400/2848/files/9342711874.pdf
    • https://cdn.shopify.com/s/files/1/0432/0935/9520/files/41566011124.pdf
    • https://cdn.shopify.com/s/files/1/0435/6951/2607/files/wuzajiloloxefobowasevan.pdf
    • https://cdn.shopify.com/s/files/1/0434/7605/8274/files/4209725413.pdf
    • https://cdn.shopify.com/s/files/1/0432/8715/0752/files/32784123669.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nexunalazuzifoginiwaboliz.pdf
    • https://cdn.shopify.com/s/files/1/0434/0462/4021/files/78188527410.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_off00007758.bin
4c4ec2c28d25ee59f470e30fa228614b37c95fab0eb1b9f447fff40966fcacfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7758 5052 bytes
font_01_sfnt_off0000887a.bin
e5be1a708f671c1370edd77801a204f0d254163843197b9350e613aede4c52f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x887A 10228 bytes

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