Malicious PDF — malware analysis report

Static analysis result for SHA-256 26e73f6673a05c29…

MALICIOUS

PDF

37.5 KB Created: 2020-09-19 11:56:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8665ad8f45a31dc2d257810f77709acb SHA-1: 6d31e629ac4156934c9e6786fe595bfb2b987e27 SHA-256: 26e73f6673a05c292dabc8c3d1ecaf354f5e7880d609918958d89337a52c631f
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded URLs, identified as a link farm. One prominent URL, 'https://ttraff.me/wix?keyword=matthews+middle+school+staff', is flagged as a malicious redirector. The presence of numerous links suggests an attempt to lure users to potentially harmful sites, likely for phishing or malware delivery. No scripts were extracted from this sample.

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.me/wix?keyword=matthews+middle+school+staff
    • http://bufosapu.openheartstudio.org/uploads/1/3/0/7/130775518/tumukavi.pdf
    • http://files.pointbiolabs.com/uploads/1/3/2/6/132682790/0bf4b2a46.pdf
    • http://files.chellesparklycorner.com/uploads/1/3/0/7/130739991/3c27d3.pdf
    • http://lerowomax.neuquacheerleading.com/uploads/1/3/1/4/131437308/28085.pdf
    • http://files.awesomekidmin.com/uploads/1/3/0/7/130776164/fca1831d19.pdf
    • http://xojawoxu.andreakantrowitz.com/uploads/1/3/1/6/131606492/126644.pdf
    • http://mijolubus.mukipictures.com/uploads/1/3/0/9/130969723/7192748.pdf
    • http://files.indyofficelistings.com/uploads/1/3/1/3/131384777/2422723.pdf
    • http://kevev.fccadams.org/uploads/1/3/2/6/132695832/pafewefupipabel_xiluzid_ziworubiwewu_zuxamunotab.pdf
    • https://cdn.shopify.com/s/files/1/0455/4008/1829/files/85481170900.pdf
    • https://cdn.shopify.com/s/files/1/0434/0511/5544/files/75626017682.pdf
    • https://853d6e14-fc7e-4d62-8a13-e62ff5c36c3f.filesusr.com/ugd/dcbeda_b95e4ba6f2ec422e99cb1628902e6990.pdf?index=true
    • https://e749e773-9ac8-41c5-abf0-0d139674d573.filesusr.com/ugd/f9fac6_53cc7b4ceefe4d01a2fdee22b95b5925.pdf?index=true
    • https://04cc92c7-3c84-4193-bd37-b4b208eef5aa.filesusr.com/ugd/3e87bf_2962507ec42e4f43b5ef9aeb3ce597a3.pdf?index=true
    • https://94de86ac-c339-4cf9-a5bb-e0ef6a67aa6b.filesusr.com/ugd/bdc04d_0899ffce92634df192469189e28b934f.pdf?index=true
    • 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_off00005519.bin
64982043a93f8a10872baa7f17c27129913fb81c1a76aa2866d8a3ce852469aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5519 5260 bytes
font_01_sfnt_off000066fb.bin
7249e88eea3070aef101b47704b3394c56c3b3f14d8bbde3fbaa2e7f086749d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66FB 10016 bytes

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