Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b6075c205d558ca…

MALICIOUS

PDF

37.4 KB Created: 2020-09-17 07:25:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6862927f40facce4efa857b461c6fc7a SHA-1: 775e692faf7a9d6783ed513703c6f982a3fa80d6 SHA-256: 1b6075c205d558cae929cc486358cf7d6959d71ae2d441e717dac6beadb27ef7
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily garbled, contains text that appears to be a lure related to 'Delivering happiness pdf'. The presence of a link farm and a call-to-action phrase further supports the malicious intent of redirecting users to potentially harmful content.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.club/wix?keyword=delivering+happiness+pdf+en+espa%25C3%25B1ol+gratis
    • http://kumor.magicmomentsprincessentertainment.com/uploads/1/3/0/8/130873947/e918e4020c1a.pdf
    • http://files.nextstepsphysio.co.uk/uploads/1/3/0/8/130813645/komajexubefisa-rirawul-gamumafe.pdf
    • http://files.artistsofkerrisdale.com/uploads/1/3/1/3/131383429/nadomamul.pdf
    • http://files.cainsafety.com/uploads/1/3/0/9/130969399/c69fe3ed5ba58d.pdf
    • http://files.harrisoncarpenter.com/uploads/1/3/1/4/131453188/7ad6a2f8fea6a.pdf
    • http://files.vcgallery.org/uploads/1/3/1/8/131856381/rokererukirejakifu.pdf
    • https://47608300-8590-46b4-9fe4-1dc8e3843566.filesusr.com/ugd/9d869b_332dec52176c4e09a31fbd07ca505b4d.pdf?index=true
    • https://f3036cd3-94ce-4c90-b910-c338cab24fa2.filesusr.com/ugd/122077_b5f4b8b4d8e247bc92c1cbfa1b9b3006.pdf?index=true
    • https://7d38e88c-744a-4c2c-bb09-e069de22191a.filesusr.com/ugd/d1c05f_b8cb34c9971f4d0f8ecfde559692d1c7.pdf?index=true
    • https://81b42212-5ad4-472f-9b56-a15dd1aa7714.filesusr.com/ugd/9d7ad9_0bd3b7e15e024f1ab46f3c57e0206c72.pdf?index=true
    • https://e90224c6-9d37-4c50-973c-4581f9317cf6.filesusr.com/ugd/bcb9fd_4cf3554756344e04a273d587dd8096ed.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/xotebunusi.pdf
    • https://cdn.shopify.com/s/files/1/0433/1218/5502/files/12984430482.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000043fa.bin
acaa6c6f8da5e59665436a8ffef5cce32b6c2d322bbe8f056098284285fef94a
pdf-font-stream PDF embedded font (sfnt) at offset 0x43FA 5360 bytes
font_01_sfnt_off000055ed.bin
1582fbf42b58d4d38566bda4cdff6f8468309a1c45965c7ce5f2dd5a1d5b9d37
pdf-font-stream PDF embedded font (sfnt) at offset 0x55ED 10168 bytes
font_02_sfnt_off00007868.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x7868 4324 bytes