Malicious PDF — malware analysis report

Static analysis result for SHA-256 568667e02c9eba39…

MALICIOUS

PDF

71.9 KB Created: 2021-01-19 20:03:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 1deb8881c5d82bce217574a53f9fa862 SHA-1: eccbeb6aff3d78a25e49d0420852b76a95cd4eb6 SHA-256: 568667e02c9eba39c3ccfcfa4b2b88e4b7b5a29c5a811ce52faadf858bb7061b
186 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, many hosted on disposable domains, indicating a link farm or phishing lure. The ClamAV detection and ML classifier strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and numerous external URIs point towards a malicious document designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafffe.ru/123?utm_term=pathfinder+masterwork+chain+shirt PDF link annotation
    • https://vumukawa.weebly.com/uploads/1/3/4/6/134662430/4925759.pdfIn PDF document text
    • https://rabugotekinevod.weebly.com/uploads/1/3/1/8/131871666/67d7058c93.pdfIn PDF document text
    • https://cdn.sqhk.co/sadetujadufi/jdhiAjj/9344195901.pdfIn PDF document text
    • https://xefakiradu.weebly.com/uploads/1/3/1/8/131856624/8da56ece3be4.pdfIn PDF document text
    • https://cdn.sqhk.co/gitopedevid/8idgjYQ/rimadusis.pdfIn PDF document text
    • https://zepinimokibe.weebly.com/uploads/1/3/4/3/134373719/newagoxadi.pdfIn PDF document text
    • https://cdn.sqhk.co/tezuzerise/d3Yfger/65485964593.pdfIn PDF document text
    • https://bepikasubezitix.weebly.com/uploads/1/3/4/3/134325559/1518969.pdfIn PDF document text
    • https://zilasemewoxuj.weebly.com/uploads/1/3/4/3/134318224/naradita.pdfIn PDF document text
    • https://pugiputofal.weebly.com/uploads/1/3/4/7/134740318/rekedakexika-funujuf.pdfIn PDF document text
    • https://sazizilas.weebly.com/uploads/1/3/0/8/130874530/wagewaworomikiluz.pdfIn PDF document text
    • https://cdn.sqhk.co/vixukose/jijibmh/vedipukagovagowitu.pdfIn PDF document text
    • https://cdn.sqhk.co/xawodoze/gdgfKgh/divavusezifunavegumo.pdfIn PDF document text
    • https://cdn.sqhk.co/lepapina/DPNgfgf/rulafuvowazenejefogasu.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/tejuvonixag/i_know_it_s_today_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/donkey_care_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/bodajaku/nujuxijugup.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/domakatekugadalopibapoju.pdfIn PDF document text
    • https://s3.amazonaws.com/vitelitubovuluj/exploring_psychology_in_modules_online.pdfIn PDF document text
    • https://s3.amazonaws.com/rizezobabub/78658632710.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_off0000dd84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD84 5388 bytes
SHA-256: 42bfcd54955c902f1928c856041f98262f9b16a303c16b2a68cd9173addc288a
font_01_sfnt_off0000efbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFBE 10044 bytes
SHA-256: 5369061baae5942c260fc224ea8ef0a1dba8564a0816c1685effe7b06b702e3c

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