Malicious PDF — malware analysis report

Static analysis result for SHA-256 536b8d949225a44f…

MALICIOUS

PDF

41.6 KB Created: 2020-07-08 16:51:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6fc69c695479a9ffe4f2c2c23809f7c6 SHA-1: c9df647526db512a8a1b9dc82da5f226e78d1e00 SHA-256: 536b8d949225a44f147cdc4ce5e4139296e5db72d507639d50bbf203eee0b1cc
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a redirector to ttraff.com, indicating a link farm or phishing attempt. The document body contains obfuscated text and URLs, suggesting an attempt to disguise malicious content. The primary function appears to be redirecting users to potentially harmful websites.

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=melatonina+anvisa+pdf
    • http://files.iwstreecare.com/uploads/1/3/2/7/132740479/wogupu-zukokitoruwogog-zikezugufada-pubuzesilas.pdf
    • http://files.academy-of-excellence.com/uploads/1/3/0/7/130775744/nilejisupofoz.pdf
    • http://files.willowwildedges.com/uploads/1/3/1/8/131856443/xukopiwome-tojazelapiz-kasivezobisu-sunezurawuse.pdf
    • http://files.byrdhouseandladybugs.com/uploads/1/3/1/3/131383383/rabanuruwevixugigu.pdf
    • http://files.en.msp-lawoffice.com/uploads/1/3/1/4/131406433/mobumikefe_sajupebugodow_vikapup.pdf
    • http://files.fcskaliphilippines.com/uploads/1/3/1/3/131379951/c916455093b.pdf
    • http://files.fpepumps.com/uploads/1/3/2/6/132696155/2962985.pdf
    • http://files.changingfutures.org.uk/uploads/1/3/1/6/131606087/mufegesitawiko-matuwomap-xivekun-vokozufeletefuz.pdf
    • http://files.ashleyparsonsyoga.com/uploads/1/3/2/7/132740415/newixebomufobezofawe.pdf
    • https://lapabopas.files.wordpress.com/2020/07/tipumexiwomuwufisabawibab.pdf
    • https://fajebatisik.files.wordpress.com/2020/07/90198464401.pdf
    • https://mifetaf234194639.files.wordpress.com/2020/06/gamovetaboxisabixosizu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/meragavafeduxilaxopuxaw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/43778875991.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tikifulodu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/10809735118.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/
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067ae.bin
391a98b95ff24bfce5a7767d75912bbe72180efbf8ed19b3d56dca4a9bfd4d41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67AE 4792 bytes
font_01_sfnt_off00007817.bin
813eba814d69883b902321f997e77b07c47475693ffc07d6d396880426d765ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7817 10072 bytes

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