Malicious PDF — malware analysis report

Static analysis result for SHA-256 0411a73e30acaedf…

MALICIOUS

PDF

72.3 KB Created: 2020-10-10 20:18:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 1eea958d4e7b23663f00547c694bc870 SHA-1: 77bd9d702419f21981540b0a37cdbf2c32f12e0b SHA-256: 0411a73e30acaedf9d29451c2d5c9856dd7d32e7f3846604f5cbcd04b6bbd2b1
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.link/pify?keyword=ffxiv+anima+weapon+questline'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs. The document body also contains the malicious URL, reinforcing the intent to redirect the user.

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.link/pify?keyword=ffxiv+anima+weapon+questline In PDF document text
    • https://site-1038344.mozfiles.com/files/1038344/zipedobovalesaxunowu.pdfIn PDF document text
    • https://site-1036910.mozfiles.com/files/1036910/babawixiviwojavi.pdfIn PDF document text
    • https://site-1041768.mozfiles.com/files/1041768/31487698391.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5df9511f-55c6-4616-a64b-3b2c284c2f99/zixejuruderamumakog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ec9f212-a440-44bf-a773-413fde97a15e/godujemozojafetiwavuxopon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f65b90a-3327-4ee4-acb4-4b974d377a1a/moditeredevubovepapus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7f63d39f-639a-4067-88f1-b668fbaa116a/sorudimeteze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/3266/9091/files/63512456811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/7254/0838/files/fiwomipifewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/1699/8040/files/mt_st_helens_trail_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9462/5441/files/1732265618.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0279924-b170-4238-9c22-39465765e1bd/24906281375.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec684470-04d6-43ee-bfec-94cbbce74954/murojezuzo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f27df3bc-6d96-4d99-823e-09c1f195d083/bozipanarogakexugenaw.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_off0000d5fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5FE 5252 bytes
SHA-256: 302233eeb1a477a1cf46df78b9c40405d0945342bf520fc83e9e6598aeabb838
font_01_sfnt_off0000e7e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7E8 2076 bytes
SHA-256: 26c746d8a21c50ad21e30d74cf30b24ab4a33d794d089756bbfc207ec540187f
font_02_sfnt_off0000f0e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E9 10324 bytes
SHA-256: ba329aa14ff9b4dd590a7ce9738df263734444090b1d4c86901580afb68079ae

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