Malicious PDF — malware analysis report

Static analysis result for SHA-256 aae671893fc13028…

MALICIOUS

PDF

68.4 KB Created: 2020-10-02 09:35:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7283aaadfe71dbf5670dc3fa82fb3d1c SHA-1: acbc2e07af22e0253926ac6311a387a81f0e4555 SHA-256: aae671893fc13028de6aa0554b3e45245e57c5269820004b131af9ed203b42f6
184 Risk Score

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://ggtraff.ru/strik?keyword=icy+veins+warlock+leveling+guide+classic In PDF document text
    • http://sasakix.jesusourredeemerlc.org/uploads/1/3/1/1/131164250/48980acef5010c.pdfIn PDF document text
    • http://ronapawu.charlottebrady.com/uploads/1/3/0/7/130776644/dowamisuzazagivo.pdfIn PDF document text
    • http://files.pdoapparel.com/uploads/1/3/1/3/131379946/eaf47fee368c20.pdfIn PDF document text
    • http://files.thewolfblogs.com/uploads/1/3/0/8/130814479/peditubamib.pdfIn PDF document text
    • http://files.sbwga.com/uploads/1/3/2/6/132695829/7282129.pdfIn PDF document text
    • http://jebav.mydiggersden.com/uploads/1/3/1/4/131453541/1446561.pdfIn PDF document text
    • http://wigosokib.slaglesfamilyfarm.com/uploads/1/3/1/3/131379256/besulumokefewude.pdfIn PDF document text
    • http://files.jennyandgusfood.com/uploads/1/3/0/7/130740117/3160469.pdfIn PDF document text
    • http://files.ranejiang.com/uploads/1/3/2/6/132680967/korapurik-kobakuwuzig-nafimino-jivukijidu.pdfIn PDF document text
    • https://site-1036885.mozfiles.com/files/1036885/badas.pdfIn PDF document text
    • https://site-1037106.mozfiles.com/files/1037106/15396941370.pdfIn PDF document text
    • https://site-1036698.mozfiles.com/files/1036698/76409848510.pdfIn PDF document text
    • https://site-1039863.mozfiles.com/files/1039863/xasedafeduxazu.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/8f8d60a5-e58a-462e-92ef-5e196fcf7094/peleda.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/43a1a4b2-9f08-46e4-90f9-80785b87fcc4/xitukinonidur.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5dbac5b5-0177-4289-967b-c7450a996101/66065112650.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_off0000c4d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4D0 5360 bytes
SHA-256: e4a24e7d7ba2951877dd25d6a7eef74bcdcba5518a670071171080e7a2407352
font_01_sfnt_off0000d73c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD73C 14368 bytes
SHA-256: 3b02937bc26a0554fd2a3ea9301103cb99443802f603c2faa200bc0283b9ede7