Malicious PDF — malware analysis report

Static analysis result for SHA-256 02b516a65a572e6b…

MALICIOUS

PDF

65.5 KB Created: 2020-09-11 20:17:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b12b7a8faef5672eebb78752dd83384 SHA-1: 56d5d44d77ba715f3e3d5bacbf18bb19468ad846 SHA-256: 02b516a65a572e6bf35614c6688bde51ccd4ffae53223c1fbe1114472245aeda
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm and a specific malicious redirector URL, suggesting a phishing or scam attempt. The embedded URL 'https://ttraff.me/wix?keyword=minecraft++link+for+pc' is identified as a malicious redirector, likely leading to a further stage of the attack. The document body, though heavily obfuscated, contains references to Minecraft and the malicious URL, reinforcing the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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.me/wix?keyword=minecraft++link+for+pc
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.opentle.org
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0430/3188/8035/files/dogafefujobunas.pdf
    • https://cdn.shopify.com/s/files/1/0432/3767/1080/files/adobe_acrobat_reader_software_download.pdf
    • https://cdn.shopify.com/s/files/1/0439/0046/9403/files/9836900402.pdf
    • https://static.usrfiles.com/ugd/e3c460_45bfa6f102f34f8ba3c1643a67836535.pdf
    • https://static.usrfiles.com/ugd/b8c837_8d9ffaeceb504c518a6638ab40a23277.pdf
    • https://static.usrfiles.com/ugd/6f7357_3106e9c9470b4423a586d6308f4d7f89.pdf
    • https://static.usrfiles.com/ugd/e4ff69_0f00d9627734426c86fbc0548a59cae3.pdf
    • https://static.usrfiles.com/ugd/03dcd4_d5301ae75d6048b090a4cda9e9854d0d.pdf
    • https://static.usrfiles.com/ugd/74147a_f813c4e02d194bc18b198c549f81d56b.pdf
    • https://static.usrfiles.com/ugd/b8c837_841b51e9e56641518f1ee9788556fad4.pdf
    • https://static.usrfiles.com/ugd/1479de_bfcc9e602ad4497f99a8f833fe9e80e2.pdf
    • https://static.usrfiles.com/ugd/39a0fd_834ae2b738e8410f85fd4d55b61a2792.pdf
    • https://static.usrfiles.com/ugd/58a813_ec09888d27424c2fa721a120c8af0e98.pdf
    • https://static.usrfiles.com/ugd/40b9e6_ee671026d3cd4116b65f479dfdaf590e.pdf
    • https://static.usrfiles.com/ugd/e1d12c_515a188fa9b64c7db30efa147dfec4ed.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/
    • http://scripts.sil.org/OFL
    • http://www.gnu.org/licenses/gpl.html

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a50d.bin
b950a5a77cdb7c6e3cdcc3648cf14f32ed9f32ff615e0c2897007c673a608d20		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA50D 4688 bytes
font_01_sfnt_off0000b4f4.bin
1611f684120429e050f0920d7ce9cccb0dc7af14f0ab040d261773df2e9b1fdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB4F4 6388 bytes
font_02_sfnt_off0000c5dd.bin
c352b91b2f37a1d5d955b0f6b69755db5750fd4bdd7dfebf89006017cd510450		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC5DD 10680 bytes
font_03_sfnt_off0000ea60.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA60 4324 bytes

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