Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8d4e3661aabb2f4…

MALICIOUS

PDF

59.2 KB Created: 2020-06-04 14:33:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe44a69e45c7ed1438687e46179349b3 SHA-1: 3e1bca20be1f38f23b2e07408ed49e6a17dd518e SHA-256: d8d4e3661aabb2f4c3d92b74d79c14a91fb5ffe204f9697c6be200f9b5e1b7bd
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used to create link farms or redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a high likelihood of malicious intent. The document body, though partially corrupted, contains a URL that aligns with the detected link farm pattern.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://dubldcontracting.com/uploads/1/3/0/7/130739577/130739577.html#roommate+temporada+2+sub+espa%25C3%25B1ol
    • http://shinden.mypreview.site/uploads/1/3/1/4/131453182/8561a71.pdf
    • http://gemmillion.com/uploads/1/3/0/6/130621322/6539358.pdf
    • http://ciceroheatingandcooling.com/uploads/1/3/0/8/130814011/1194510.pdf
    • http://meganchristinabeauty.com/uploads/1/3/0/7/130775056/gexeno_xumewemetumemux.pdf
    • http://luseproductions.com/uploads/1/3/0/6/130604616/1004044.pdf
    • http://thecustomerexperiencecenter.com/uploads/1/3/0/5/130551287/pituwivafu.pdf
    • http://darzicoasttravel.com/uploads/1/3/0/5/130551739/pepupasatuk_tigovopof_wotiwamuv.pdf
    • http://lookslikeliberty.com/uploads/1/3/0/9/130968984/zixaraxomato.pdf
    • http://blackdogpest.com/uploads/1/3/0/6/130639856/semajakukakajo-buxapelovo-titum.pdf
    • http://dpaulart.com/uploads/1/3/0/7/130775831/zalukitipovige.pdf
    • http://irenehegebo.com/uploads/1/3/0/7/130775645/vipositiwika.pdf
    • http://dubldcontracting.com/uploads/1/3/0/7/130739577/terms.html
    • http://dubldcontracting.com/uploads/1/3/0/7/130739577/dmca.html
    • http://dubldcontracting.com/uploads/1/3/0/7/130739577/policy.html
    • https://zagetotixuwa.files.wordpress.com/2020/06/kikirabitosezazewanovuga.pdf
    • https://bolelotubof10880063.files.wordpress.com/2020/06/puzefijanuke.pdf
    • https://biwuliru.files.wordpress.com/2020/06/kadinotomakafedo.pdf
    • https://gezuduropen419134146.files.wordpress.com/2020/06/jubime.pdf
    • https://pojipipa.files.wordpress.com/2020/06/48251182719.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_off0000abdf.bin
99175ead233be4a6b7d20dd33227345581e1c92db620f92419da27912ad03335		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABDF 3044 bytes
font_01_sfnt_off0000b6c8.bin
1446152c0ef927d8199887bcbf3d04895025a6524e891a8ae37ab19c6a0b0f61		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB6C8 12108 bytes

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