Malicious PDF — malware analysis report

Static analysis result for SHA-256 a09050bbded939fe…

MALICIOUS

PDF

70.1 KB Created: 2021-02-22 22:13:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 54a8af3764a2a3b8c4ae3f932d2d4fa5 SHA-1: f0ae01a2b6a1223bb419addacee60d818eedec78 SHA-256: a09050bbded939feff7376308b007a3d4a9a353950325da7bc2c9eb0261cad4b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wb?keyword=2005%20honda%20odyssey%20touring%20sliding%20door%20problems PDF link annotation
    • https://cdn.sqhk.co/wobuwaseja/jjiHHib/95828187349.pdfIn PDF document text
    • https://melukibe.weebly.com/uploads/1/3/0/8/130873851/5992181.pdfIn PDF document text
    • https://nuxirudeduw.weebly.com/uploads/1/3/4/4/134442083/7519512.pdfIn PDF document text
    • https://cdn.sqhk.co/kixowijeka/YQxXigt/bifedotitatumukafiwuji.pdfIn PDF document text
    • https://cdn.sqhk.co/bisuligiga/ejfIib5/entergy_louisiana_quick_pay.pdfIn PDF document text
    • http://im-marceting.site/27864179438f504b.pdfIn PDF document text
    • https://ruvedusipokowu.weebly.com/uploads/1/3/0/8/130813644/043e20ef30fb5f.pdfIn PDF document text
    • https://raxokada.weebly.com/uploads/1/3/1/4/131409035/953182.pdfIn PDF document text
    • https://toxafowusolele.weebly.com/uploads/1/3/2/8/132815148/lodavogosagazo_neriluzeb_pezodasufu_ruvipametu.pdfIn PDF document text
    • https://dexekuweda.weebly.com/uploads/1/3/4/7/134705305/a393f52b9.pdfIn PDF document text
    • https://cdn.sqhk.co/tufuboloruj/QqXjgs2/57708799305.pdfIn PDF document text
    • https://gugagefa.weebly.com/uploads/1/3/4/3/134343265/jinefajasekezuduwam.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/webipejonavuv/xoxudupajafeka.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/agrarian_reform_in_the_philippines_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/hemorrhagic_stroke_blood_pressure_guidelines.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_off0000d051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD051 5916 bytes
SHA-256: a44bca9bb90faf59bc64ee815c82b90a1ea38ff80dc06cbe1bd2cda4d6c1de0a
font_01_sfnt_off0000e44c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE44C 10876 bytes
SHA-256: f26a8defde6b7b0317326919439c3639f3314df62ef757db303240f4e58510e4