Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce7cec3d95a036ae…

MALICIOUS

PDF

74.7 KB Created: 2021-02-27 23:48:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: c212eb607af8531fdaf132510bec7d75 SHA-1: a0fc0a287f1ad7c07c6e11d1e2ccd60970194b2f SHA-256: ce7cec3d95a036ae99ea5d4aa38a82f85785f84444a66363b00861ae68e31d41
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or trojan payload. It contains a large number of external links, many of which are likely part of a link farm designed to improve SEO for malicious content. One prominent link directs users to a "best advanced english speaking course" which is a common lure for phishing campaigns. Although no scripts were explicitly extracted, the PDF structure and the presence of numerous external links suggest it is designed to redirect users to malicious sites, potentially for further exploitation or credential harvesting.

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
  • 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.
  • 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://dugedepap.ru/strik?utm_term=best+advanced+english+speaking+course PDF link annotation
    • https://jipowikufimur.weebly.com/uploads/1/3/5/3/135327107/b318fc6653e.pdfIn PDF document text
    • https://cdn.sqhk.co/nikajovefer/haVmhd8/download_stickman_unknown_battlegrounds_mod_apk_android_1.pdfIn PDF document text
    • https://cdn.sqhk.co/lokiwejawe/h8gdXK0/bevisugodibe.pdfIn PDF document text
    • https://dolumipekino.weebly.com/uploads/1/3/4/6/134625527/ximimeraganuj_xajimaditagepod_fopamewoluxok_dulomupo.pdfIn PDF document text
    • https://kuwumezebuxe.weebly.com/uploads/1/3/4/1/134131528/xopivomed_bipot.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/sedimeraxufi/messenger_android_apps_on_google_play.pdfIn PDF document text
    • http://memaded.epizy.com/xejavajokopariraje.pdfIn PDF document text
    • http://vezubigaru.rf.gd/stalker_2_radar_manual.pdfIn PDF document text
    • http://zeboguk.rf.gd/albert_camus_mythe_de_sisyphe_citation.pdfIn PDF document text
    • http://juzoduseba.rf.gd/56651023675.pdfIn PDF document text
    • https://s3.amazonaws.com/pizexopenaxu/69350864948.pdfIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/91960501585.pdfIn PDF document text
    • http://rafetomobu.rf.gd/defilegixa.pdfIn PDF document text
    • https://s3.amazonaws.com/faxaxos/62330045336.pdfIn PDF document text
    • http://dodupubi.epizy.com/18382132868.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/zasuloxoxuzutireriju.pdfIn PDF document text
    • http://sisawujeza.rf.gd/bareilly_ki_barfi_movie_free_480p.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_off0000e663.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE663 5508 bytes
SHA-256: bb89204792f07747bcc00f4506b84b42be94112990eb7f07179dc99df9cd4913
font_01_sfnt_off0000f927.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF927 10744 bytes
SHA-256: 8cefa4c43d3bc95a3224a6671214016c85ad59d628e9f79a4345c2e3a6bc6e53

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