PDF malware analysis — malicious · dc75d49fdbee417c

MALICIOUS

PDF

32.3 KB Created: 2020-09-20 04:53:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 846c4beba1be8a401bbcf5a44648480b SHA-1: 40da68963cdf4dbbfd74b4f169eb06bb8bcd1158 SHA-256: dc75d49fdbee417cc11dd562a0bfd1637f312b6a7573b64e50285e5c516126bc

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 links, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. One of these links, 'https://ttraff.link/wix?keyword=to+build+a+fire+characters+brainly', points to a known malicious redirector. The document body is heavily obfuscated and contains what appears to be a truncated URL, further suggesting a malicious intent to redirect users to harmful content.

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.link/wix?keyword=to+build+a+fire+characters+brainly
- http://files.cameraygal.com/uploads/1/3/2/6/132681409/guwapot.pdf
- http://mezumu.kinklinksgsy.com/uploads/1/3/1/4/131452976/c60604d156f2e.pdf
- http://jipob.unnatinarang.com/uploads/1/3/1/4/131453934/262588ff.pdf
- http://wuwif.swampfest.ca/uploads/1/3/2/8/132814930/84fef61070b13d.pdf
- http://denomuk.pro-activemuscletherapy.com/uploads/1/3/1/4/131453915/jewekumituw.pdf
- https://9592dc58-a99c-42be-b4cd-d43fd6a2a9fd.filesusr.com/ugd/7836c9_082832227b724078b1c92c6ef1826c2a.pdf?index=true
- https://3f7db3a0-7f84-4bc6-815f-08d4d086e04e.filesusr.com/ugd/a76634_d8c2c315b02f4dac9f84ac804863e2a9.pdf?index=true
- https://e5461bb4-3011-44d1-9a78-032335317c5f.filesusr.com/ugd/e54fc7_64f03f2aed4b4d4cb819c6cae3543ead.pdf?index=true
- https://2a671b59-83d6-4b7a-90ad-2e76f2d7982a.filesusr.com/ugd/8508de_31f41eff265a448e9ea345e0b977a37f.pdf?index=true
- https://46c7507c-362c-4864-868b-26af75398cc5.filesusr.com/ugd/7ef0dc_9134bc39c9644b589e215316b091fba1.pdf?index=true
- https://530eed12-e39f-4861-b9bd-3399c28d216c.filesusr.com/ugd/162fe6_110e5166950249d9b35a413da9a4589c.pdf?index=true
- https://1b1cbc41-2031-44a8-b5b3-3c4dc3c76530.filesusr.com/ugd/58a813_ab2e0eecc83d4d339e622c20ec3d3e8d.pdf?index=true
- https://8bb59193-402b-49af-9a9b-be1f6db3f4fb.filesusr.com/ugd/c1de29_6de26b560fd2418a95b3c30fd9a80fb2.pdf?index=true
- https://8df3c3a7-0517-4047-8ca1-ad69647c7b1d.filesusr.com/ugd/4dd980_d04f0242340c44128bbd22553f058d45.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000458c.bin` `09cce0ab6be9bd2d479bb57edff97d5a5bc176074bf67ec1e3f13e8205d8c21d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x458C	5300 bytes
`font_01_sfnt_off00005793.bin` `91ad5ce0e5e7de3e9a3ea670ca77857772c837242c431ad3a1e5333fcf31259b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5793	8508 bytes

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