Malicious PDF — malware analysis report

Static analysis result for SHA-256 daf81ca50d89ee2e…

MALICIOUS

PDF

68.4 KB Created: 2021-02-19 00:43:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e68af615925c955428183e5155084831 SHA-1: 0b266bc70ef622e7836a4a97031a063edf733e9a SHA-256: daf81ca50d89ee2e4507dd0a9d9b7b991bee592f70752f80da8220879c6ebf3d
136 Risk Score

Malware Insights

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

The sample is a PDF file flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains multiple suspicious external URIs, including one that points to a PDF hosted on 'ig-supportcenter.xyz', suggesting a lure to download further malicious content. The presence of embedded URLs and the overall structure indicate an attempt to trick the user into interacting with malicious links, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://seumenha.ru/wix?keyword=propiedades+de+la+integral+definida+demostraciones PDF link annotation
    • http://ig-supportcenter.xyz/giardia_treatment_guidelinesbqhv2.pdfIn PDF document text
    • http://pixell.store/chemische_formeln_zeichnen_ipadlgmae.pdfIn PDF document text
    • http://bottlechainworld.com/microsoft_edge_home_page_news29isf.pdfIn PDF document text
    • http://winoorama.space/movies_to_watch_on_netflix_for_tweensm5riv.pdfIn PDF document text
    • http://buytoday.cc/bsmmu_ms_admit_cardzh2sj.pdfIn PDF document text
    • http://vezerfa.xyz/build_and_shoot_server_downloadxd51o.pdfIn PDF document text
    • http://betflixguvenilirmi.com/rodimuvqr3k.pdfIn PDF document text
    • http://logowiwubapokar.iblogger.org/kepizuxukawosejale.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/sefabe/84180922194.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/ambarsariya_movie_khatrimaza.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/phone_voice_changer_app_android.pdfIn PDF document text
    • http://jamurujitexezi.epizy.com/sales_terms_and_conditions_template_free.pdfIn PDF document text
    • https://s3.amazonaws.com/gogonof/specific_issues_in_financial_reporting.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_off0000cf1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF1E 5476 bytes
SHA-256: 8a0a4335c754f5a1536b5ccbd7bf58f8d1c5a8fef7f06afe06987da5e414e421
font_01_sfnt_off0000e1ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1AB 10668 bytes
SHA-256: 7223e76c916fe572136d4dba7e4a5df8f57410a058498ce3f1e57b8942273c82

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