Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa25a31806e09c46…

MALICIOUS

PDF

52.6 KB Created: 2020-08-30 22:23:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ce0c8031e4bcb2d384353d7acca70f0 SHA-1: bdff9db28eb55de4440e8136bbd9b1f2c0800c47 SHA-256: aa25a31806e09c46f23344de217e1748500cf498a41792577fa7b9211746f101
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body contains text related to an 'Oral b pro 5000 manual' and a URL that appears to be a malicious redirector. This suggests a phishing or scam attempt to lure users to malicious infrastructure.

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/wix?keyword=oral+b+pro+5000+manual
    • https://static.usrfiles.com/ugd/5899d5_36af91d7cba34b7395f42111fac52e42.pdf
    • https://static.usrfiles.com/ugd/b8c837_5f04377a3183477d92ef71eabb234eb6.pdf
    • https://static.usrfiles.com/ugd/b8c837_8ff460a1e14c4c8c9458a8e6829bc181.pdf
    • https://cdn.shopify.com/s/files/1/0432/6129/6790/files/51556814605.pdf
    • https://cdn.shopify.com/s/files/1/0439/8632/1566/files/20571627099.pdf
    • https://cdn.shopify.com/s/files/1/0432/8790/4411/files/pikabonobubuwirap.pdf
    • https://cdn.shopify.com/s/files/1/0433/4678/8501/files/semixela.pdf
    • https://cdn.shopify.com/s/files/1/0433/4760/7720/files/saints_row_2_frame_rate_fix.pdf
    • https://cdn.shopify.com/s/files/1/0429/6232/1567/files/83896453064.pdf
    • https://cdn.shopify.com/s/files/1/0433/1359/4526/files/faguseruxerokavageberuno.pdf
    • https://cdn.shopify.com/s/files/1/0430/0413/3525/files/fawaxo.pdf
    • https://cdn.shopify.com/s/files/1/0435/4713/2068/files/11309572186.pdf
    • https://static.usrfiles.com/ugd/0cd3a8_a6288c367880416bae695a0a5a07beac.pdf
    • https://static.usrfiles.com/ugd/286fb8_efd9e67f31f846eaa977098e76e79591.pdf
    • https://static.usrfiles.com/ugd/6df952_04baef14ec794cd18150746ce68bee42.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_off00008ea6.bin
bdb65f4198fbdb01a8a0204064e0fea2450d0a93e6801178ef486fcd54776ffa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8EA6 5220 bytes
font_01_sfnt_off0000a045.bin
86d6a7c57538c8f03d0bec1e620c32a3a75e480691bd50b6146f1e30e69bccaa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA045 10392 bytes

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