Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3cc5714b826306c…

MALICIOUS

PDF

41.4 KB Created: 2020-08-03 07:09:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a3130e9ed51cfc386b9509306206783e SHA-1: 7bd34398fab0163500ad7130a770567a7c0f10fa SHA-256: d3cc5714b826306c1a722f73787c3b15d79113338c1cbf0fac62f6a673cd7d9d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1204 Malicious Link T1204.001 Malicious Link: Malicious Link T1059 Command and Scripting Interpreter T1059.003 Command and Scripting Interpreter: Windows Command Shell

The PDF document contains a link farm and a primary malicious redirector URL, suggesting a social engineering lure. The heuristic 'SE_CLICKFIX' indicates the document likely instructs the user to execute a command, potentially to bypass macro restrictions. The primary malicious URL is https://ttraff.ru/pify?keyword=windows+10+add+program+to+startup, which is designed to redirect the user to further malicious content. No scripts were extracted from this sample.

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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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.ru/pify?keyword=windows+10+add+program+to+startup
    • http://files.auntiejaniceentertainment.com/uploads/1/3/2/7/132740892/nesesuzo.pdf
    • http://files.stmichaelsclovis.com/uploads/1/3/0/9/130969358/dojevav-magizopokodok.pdf
    • http://pofufarar.janaoliver.com/uploads/1/3/0/7/130775734/1ba64b3b5b09.pdf
    • http://files.westdenegreen.org.uk/uploads/1/3/2/6/132681757/rumolawibido-wijafu-leborajeni-silesan.pdf
    • http://files.redeemernewton.com/uploads/1/3/1/3/131381518/1364877.pdf
    • https://cdn.shopify.com/s/files/1/0432/4245/5195/files/43100584219.pdf
    • https://cdn.shopify.com/s/files/1/0434/2602/1527/files/22220791045.pdf
    • https://cdn.shopify.com/s/files/1/0428/5153/2963/files/58833028026.pdf
    • https://cdn.shopify.com/s/files/1/0430/5456/3477/files/filoziluzafotebinu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pawatofamilafal.pdf
    • https://cdn.shopify.com/s/files/1/0433/7922/8833/files/41500693117.pdf
    • https://cdn.shopify.com/s/files/1/0434/8982/0836/files/36555528155.pdf
    • https://cdn.shopify.com/s/files/1/0432/5061/4429/files/fapefu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8425/1285/files/98061616697.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58829080427.pdf
    • https://cdn.shopify.com/s/files/1/0435/1731/3178/files/39715283565.pdf
    • https://cdn.shopify.com/s/files/1/0431/2976/6039/files/dawiwutegososog.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45035229099.pdf
    • https://cdn.shopify.com/s/files/1/0434/1347/1384/files/puzaxamesavazuzi.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_off00006225.bin
598a26b19a13fa9045f121f4a76fa34f19aece9264959e1cd0302c3a4eb88f14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6225 5548 bytes
font_01_sfnt_off00007509.bin
dc86454b4521c23b2142787c8344a74b8e0d471d46b0f96a03e400a13d2f71e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7509 10444 bytes

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