Malicious PDF — malware analysis report

Static analysis result for SHA-256 89faabff02da585f…

MALICIOUS

PDF

36.7 KB Created: 2020-11-09 08:05:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: e7dddb83fbadf7ff7856515ca43cde2f SHA-1: 4db3c12dc1c02750afa37cb95a809529e7af3b2b SHA-256: 89faabff02da585f4eb8a40de5afd2e864f60e95d7820503180c3ca0994acf53
184 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as a resource for 'Minecraft pe free plastic texture pack'. The primary link, https://gettraff.ru/123?keyword=minecraft+pe+free+plastic+texture+pack, is identified as a malicious redirector. The document's structure and embedded links suggest it is part of a SEO poisoning or link farm campaign to drive traffic to malicious sites.

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://gettraff.ru/123?keyword=minecraft+pe+free+plastic+texture+pack In PDF document text
    • https://cdn-cms.f-static.net/uploads/4445742/normal_5f9eb716a2f60.pdfIn PDF document text
    • https://sawalodisixujig.weebly.com/uploads/1/3/4/4/134490012/farifazaw-zoburizalufumi-vawagowodomef-ziwulusiwa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://wejogude.files.wordpress.com/2020/11/niwasegini.pdfIn PDF document text
    • https://kozedin.files.wordpress.com/2020/11/the_data_science_handbook_field_cady.pdfIn PDF document text
    • https://vipuvixo.files.wordpress.com/2020/11/82833787591.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/paradise_lost_bangla.pdfIn PDF document text
    • https://simapusemi.files.wordpress.com/2020/11/zutaxudiwipozijirubuleke.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/destiny_2_threat_level_shotgun.pdfIn PDF document text
    • https://nevosaxovib.files.wordpress.com/2020/11/fizimobaruweboratiweti.pdfIn PDF document text
    • https://pawarasi.files.wordpress.com/2020/11/ladosidoxitakefokano.pdfIn PDF document text
    • https://pupirod.files.wordpress.com/2020/11/nozemapopumetuve.pdfIn PDF document text
    • https://vukewakir.files.wordpress.com/2020/11/vekelixokevixafugezagew.pdfIn PDF document text
    • https://fidunonip.files.wordpress.com/2020/11/madelizopididam.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C9F 5144 bytes
SHA-256: 0592eee79e1fa70c92960161b3ed256778a929e4e4d5741f4e72212333ffb843
font_01_sfnt_off00005e45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E45 12264 bytes
SHA-256: 8fc8dc761ac4b886e4424dce66995e9775f01314d0aabcfe3d8489d0b2f4fed6

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