Malicious PDF — malware analysis report

Static analysis result for SHA-256 e17ff3d04ce75116…

MALICIOUS

PDF

54.4 KB Created: 2020-08-02 23:43:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: afb4d8055ca1ee6ccda2a66d06ffb1a9 SHA-1: 565a00e8bbe81d09e3d6ea188beb55d23f9ea09d SHA-256: e17ff3d04ce75116363b021bb1b3af5c3d8ec4f90bf5fde6034c1bc648aa0525
150 Risk Score

Malware Insights

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

The PDF was flagged for containing a large number of external links, many of which point to a redirector service. The document body contains obfuscated text and references to the redirector URL, suggesting an attempt to lure users to malicious content. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.ru/pify?keyword=sdfix+kitkat+writable+microsd
    • http://files.minxylydia.com/uploads/1/3/0/9/130969659/tefizabokebet.pdf
    • http://files.aestern.org/uploads/1/3/1/3/131379213/7934677.pdf
    • http://files.keywestrickburnett.com/uploads/1/3/0/7/130739814/fasigumexikemeleten.pdf
    • https://cdn.shopify.com/s/files/1/0431/7079/1573/files/toliwanetapumezota.pdf
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/12882663206.pdf
    • https://cdn.shopify.com/s/files/1/0432/3108/4708/files/kufoluvonenanisolidelume.pdf
    • https://cdn.shopify.com/s/files/1/0431/4441/3341/files/24590829650.pdf
    • https://cdn.shopify.com/s/files/1/0435/1174/2628/files/51126111316.pdf
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/macarthur_bible_commentary.pdf
    • https://cdn.shopify.com/s/files/1/0433/4649/3605/files/nagibabawimataxizot.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/71927147942.pdf
    • https://cdn.shopify.com/s/files/1/0433/7955/6504/files/kamuwo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1327/4780/files/john_dee_snow.pdf
    • https://cdn.shopify.com/s/files/1/0432/3731/0632/files/vakime.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00009206.bin
f23af55b7b433800d59bb1904970c52aa56fbc516a05d53cd12dbc5fbe0c837d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x9206 25180 bytes
font_00_sfnt_off00005e79.bin
aeea79b8c763767b08d9bffc6f1105e7c22875b638c04f3dcecfe61aaf023b6d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E79 5316 bytes
font_01_sfnt_off0000709c.bin
0e8d96ef8326a75a96fafc97beeb1cde3de30640ca5b4fc6b346be2d95f41a32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x709C 9708 bytes
font_03_sfnt_off0000be50.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE50 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.