Malicious PDF — malware analysis report

Static analysis result for SHA-256 e60d75d499c4f902…

MALICIOUS

PDF

50.3 KB Created: 2020-10-04 15:27:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: ec4c96ec66fd800c6993d1713ff9ac39 SHA-1: e5ea679b5245d53f395a3b7c5e4b8583a1e7d770 SHA-256: e60d75d499c4f902aafa79ba311d7120576efd895789ee444865ec32b7f278e3
154 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with several pointing to known malicious redirectors or SEO link farms. The document body, though heavily obfuscated, contains URLs that are also present in the heuristics, reinforcing the malicious intent. The ML classifier also strongly indicated maliciousness.

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://gettraff.ru/strik?keyword=rangers+of+oblivion+wild+soul+guide In PDF document text
    • http://files.jopond.com/uploads/1/3/1/8/131856212/tadodoxifividos.pdfIn PDF document text
    • http://files.crest-lodge.com/uploads/1/3/0/7/130738805/d4d18af.pdfIn PDF document text
    • http://files.omlalawyers.com/uploads/1/3/0/9/130969742/wixunuforeladurefoje.pdfIn PDF document text
    • http://xubini.friendswoodvolleyball.com/uploads/1/3/0/7/130739996/xevad.pdfIn PDF document text
    • http://files.chenowethbairddesign.com/uploads/1/3/1/8/131871894/kawal_fudomur.pdfIn PDF document text
    • http://giwedod.laocdb.com/uploads/1/3/1/4/131482916/jagewomum.pdfIn PDF document text
    • http://zepile.ggcva.org/uploads/1/3/0/8/130874161/3677438.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/4ab52b50-e415-49cd-9a5a-59831860bc1d/ponamalinezovi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f35b0e3c-e1bc-4b7e-8b9c-c753e06a61f4/wetetotu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/788c6db7-3d2c-4556-98f5-d2ec7915aa6d/38371384066.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a793510-448e-403e-bdfa-1255f094ecaa/7161688139.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6690/8054/files/hurricane_shutter_track_hardware.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4172/0986/files/vanoxexozemefufuledegaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6366/3009/files/51902325509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0325/4683/files/the_collected_poems_sylvia_plath_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/4444/0726/files/romirulivasokuvun.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_off00008714.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8714 5376 bytes
SHA-256: bf774a10411b37ffe894cd43b9faddb120f55708586090bb68439ce23293fb8c
font_01_sfnt_off00009986.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9986 10188 bytes
SHA-256: 6ff444ef00f8ba7babdf2ba632f34e6cf2f9d8e15a886a7416096eff3c524fcd

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