Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3cc428d2ebaa774…

MALICIOUS

PDF

57.2 KB Created: 2020-11-04 02:36:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2b1ee2cc156d36045cb54c07233f67f7 SHA-1: 18ce6eed9cb812ff0b465c0c2e4ff4c703e8936f SHA-256: e3cc428d2ebaa774fa7954ee9690949f6119fd6284626d934dcad670f9f67fad
134 Risk Score

Malware Insights

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

The PDF contains a lure indicating the user's system may be compromised, directing them to click a link. This link, 'https://ggtraff.ru/aws?keyword=give+up+2+hacked', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other benign-looking PDF links, suggesting an attempt to trick the user into visiting a malicious site for phishing or further payload delivery.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://ggtraff.ru/aws?keyword=give+up+2+hacked
    • https://mumixopid.weebly.com/uploads/1/3/1/8/131872042/5060438.pdf
    • https://cdn-cms.f-static.net/uploads/4393044/normal_5f93f025aa3c9.pdf
    • https://dalowosa.weebly.com/uploads/1/3/4/3/134383453/sivatadumudexit-wofal.pdf
    • https://cdn-cms.f-static.net/uploads/4369935/normal_5f8d1eccd6d1e.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/e2b5e22c-7a45-435b-9aba-486b28037469/22138903727.pdf
    • https://uploads.strikinglycdn.com/files/09663eed-d76f-487f-a228-ed7e74eeddef/plate_boundary_for_a_reverse_fault.pdf
    • https://uploads.strikinglycdn.com/files/793bc070-2790-4e5b-b437-8df412fed726/86297844493.pdf
    • https://uploads.strikinglycdn.com/files/303cf50a-42b6-4e68-a576-9f6052127b3d/82985433645.pdf
    • https://s3.amazonaws.com/migivewuwe/beedi_workers_scholarship_application_form.pdf
    • https://uploads.strikinglycdn.com/files/a630ef8b-1159-4348-948e-83fc5cf1d1a3/herramientas_de_adobe_illustrator.pdf
    • https://s3.amazonaws.com/mipeboro/bncc_educao_infantil.pdf
    • https://s3.amazonaws.com/bulolimepol/entrepreneurship_books_download.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ca8.bin
ed3a391f222e66c7863241c21b27b0e0c1b023cb4fe4aad7614f41d91915eb2a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8CA8 5144 bytes
font_01_sfnt_off00009e32.bin
18325b546587d8aaefb7cd721910ad9b90919709ec91b145962d75324a656e3c
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E32 11320 bytes
font_02_sfnt_off0000c42f.bin
3e66ce8c90719045bf8f6c8d5f716325bbce29c89c8399c9e71e7e90b46a9b16
pdf-font-stream PDF embedded font (sfnt) at offset 0xC42F 16028 bytes