Malicious PDF — malware analysis report

Static analysis result for SHA-256 d01c2d01aefc9181…

MALICIOUS

PDF

47.1 KB Created: 2020-11-04 05:12:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 9e86ae33637a025fa0211cd2f3ec1baa SHA-1: 17d8203b5fa7459da93ebf0208d1a6e4cc3a59e2 SHA-256: d01c2d01aefc9181806374eca927a194e09a212fe12aa22f12e5c78660431e54
184 Risk Score

Malware Insights

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

This PDF file functions as a link farm, directing users to multiple external websites, including a known malicious redirector at `https://ttraff.link/123?keyword=doyu+8+ball+pool+games`. The document's content, though obfuscated, appears to be a lure related to 'Doyu 8 ball pool games'. The presence of numerous PDF links and the use of disposable hosting indicate a campaign to drive traffic to potentially malicious or unwanted content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?keyword=doyu+8+ball+pool+games In PDF document text
    • https://cdn-cms.f-static.net/uploads/4374376/normal_5f93200fd0344.pdfIn PDF document text
    • https://juzapojoxop.weebly.com/uploads/1/3/4/3/134370352/fitepugodapukile.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413108/normal_5f99984f66692.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369514/normal_5f8a9b4c084a1.pdfIn PDF document text
    • https://siropenisawad.weebly.com/uploads/1/3/4/3/134353493/wibesowewoliba-jubovuxunolora.pdfIn PDF document text
    • https://tugajepefur.weebly.com/uploads/1/3/1/4/131453805/muxomidofi.pdfIn PDF document text
    • https://namunobuwuper.weebly.com/uploads/1/3/0/7/130776476/62758d6d374bf.pdfIn PDF document text
    • https://wiwawuvagowe.weebly.com/uploads/1/3/4/4/134496439/zivajeke_mebez_fixubilurew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379240/normal_5f94176dd6fcc.pdfIn PDF document text
    • https://puxugewukuniw.weebly.com/uploads/1/3/4/4/134492634/5965056.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385434/normal_5f962a0674e3a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vazisi/aladdin_games_free_online.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f13d84bc-e417-4fe6-8394-fab9243d110a/baby_cache_crib_instructions.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000640a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640A 5476 bytes
SHA-256: 9af686b2ceab7070d4314e72d7fa8d4c029c555564f5f83fe2191c170dc72dcd
font_01_sfnt_off000076ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76AC 10416 bytes
SHA-256: 8bd63c114a2272163d57c0b7b7f5a2630f5a2ba4121f81c2886f5d073f11629a
font_02_sfnt_off00009a84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A84 16204 bytes
SHA-256: a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd

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