Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cb43bb9e102b50d…

MALICIOUS

PDF

33.3 KB Created: 2020-11-04 09:00:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: d8ae5cc368e0b1132144ce18569ed486 SHA-1: 168a31680a647078bb6b3935e95dc8ed6ff6f517 SHA-256: 6cb43bb9e102b50dde094503d1775155374ce6000f91f20e92c587662a03e612
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL, 'https://gettraff.ru/aws?keyword=human+scavenger+hunt+app', is the primary indicator of malicious intent. While no scripts were extracted, the presence of a malicious link strongly suggests a phishing or redirection attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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://gettraff.ru/aws?keyword=human+scavenger+hunt+app In PDF document text
    • https://zimiduninu.weebly.com/uploads/1/3/1/6/131637103/laxipeluleke.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391636/normal_5f8eb4610b8d6.pdfIn PDF document text
    • https://buximinolid.weebly.com/uploads/1/3/1/3/131381316/8747635.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388842/normal_5f9784d6e4366.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375073/normal_5f8cc38502d77.pdfIn PDF document text
    • https://zevigetadafuwun.weebly.com/uploads/1/3/0/9/130969942/2894ae9edf7b195.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375070/normal_5f8aa1af19113.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/903e8df4-36e3-45f4-866c-96c62c507963/48071641920.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/80120481233.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/tobominomunedu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/555b38ab-9227-45a5-bf2c-2f4fc580da66/75099037244.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2628addd-7208-4dd8-bb11-3346b92474e1/11968318168.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003d42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D42 5060 bytes
SHA-256: ef578ba0b7d5131c92dd8464a193834fe7bec038f5717a9d6490155761b4db1d
font_01_sfnt_off00004e3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E3F 8360 bytes
SHA-256: 0ddb47f142de902865e372e190018788cf9f132781b1c4bac933dcd5c7f6188f
font_02_sfnt_off00006a8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A8B 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

Open this report in the interactive analyzer, or submit your own file for analysis.