Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0e1329774547c31…

MALICIOUS

PDF

44.7 KB Created: 2020-08-01 11:54:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 931026f6ea80154eebfdfabd1db588f2 SHA-1: a0a5ac41a2d24274e92ceaf2ada975d90df1c472 SHA-256: b0e1329774547c312d3baf2dfa5aff2c3330b0dc6c166a4538974ad56cb0649a
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=livingwell+pressure+cooker'. This link is embedded within the document body, suggesting a social engineering lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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=livingwell+pressure+cooker
    • http://files.78thfrasersmontreal.org/uploads/1/3/1/4/131453245/loviferojosozus.pdf
    • http://files.shoppiante.com/uploads/1/3/1/3/131379510/c2c88dc.pdf
    • http://files.fergil.com/uploads/1/3/1/3/131398406/wunenusitobe_taral_nibafu_vapazivod.pdf
    • http://files.thecarltunwine.info/uploads/1/3/1/4/131409037/zapoj_pupemefisep_fogarusinagaxer.pdf
    • https://cdn.shopify.com/s/files/1/0434/8579/0365/files/vawinipikirokaladev.pdf
    • https://cdn.shopify.com/s/files/1/0435/7786/8443/files/xekokasirobiliwitov.pdf
    • https://cdn.shopify.com/s/files/1/0430/7514/1783/files/fikatutaj.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51108684678.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bodadajigewodozisidezufe.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/jaliwapivafunewawap.pdf
    • https://cdn.shopify.com/s/files/1/0431/6486/0580/files/jebolibefigobezoramab.pdf
    • https://cdn.shopify.com/s/files/1/0437/1234/8315/files/vubekifitolotupapimu.pdf
    • https://cdn.shopify.com/s/files/1/0437/5789/5841/files/nivukupewotuluxizigem.pdf
    • https://cdn.shopify.com/s/files/1/0431/0145/4500/files/munizanedalunuziwo.pdf
    • https://cdn.shopify.com/s/files/1/0433/8040/8474/files/gizotolomokoxajo.pdf
    • https://cdn.shopify.com/s/files/1/0428/5916/7900/files/68409648822.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_off00007042.bin
f792bdb635122d82a2d6e5387302abcb373785154019cb1f2f39ea9dbadafd6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7042 5048 bytes
font_01_sfnt_off000081a8.bin
8f950a75de0057114eabded580888569d7f9c5c700fbcad2def37243c9f74b97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81A8 10540 bytes

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