Malicious PDF — malware analysis report

Static analysis result for SHA-256 380f431292a92498…

MALICIOUS

PDF

100.2 KB Created: 2021-03-09 16:44:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 59f336715a58c162548e924d4a45de7a SHA-1: 72286be75d920dac47610af99da72a78b451277a SHA-256: 380f431292a924989e2fc7610e02b4a506a5576b8bec04df6e5d91d6506647ec
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware download site. The document body, though heavily obfuscated, suggests a lure related to technical documentation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jumiwimov.ru/123?utm_term=cisco+ise+base+license+datasheet
    • http://bovosidifusu.iblogger.org/26406405563.pdf
    • http://fesabip.iblogger.org/bujonixifufudebutizewi.pdf
    • http://sandwichhq.club/fodefonugekefanwk2b.pdf
    • https://posilukununafux.weebly.com/uploads/1/3/4/4/134498017/a0c426d92dec697.pdf
    • http://limons.space/thriller_romance_novels_read_onlineeicvn.pdf
    • http://vipimuxatomefi.medianewsonline.com/the_lord_of_the_rings_in_telugu_full_movie_download.pdf
    • https://pijafajabivigin.weebly.com/uploads/1/3/4/6/134635516/kamoruka.pdf
    • https://pokifinib.weebly.com/uploads/1/3/4/0/134017941/314084ff.pdf
    • http://mebosopevux.iblogger.org/kelibij.pdf
    • https://salizobujexi.weebly.com/uploads/1/3/5/3/135325558/towaj.pdf
    • http://predouche.xyz/interior_designing_jobs_in_bangalore2yqba.pdf
    • https://vunidiripoga.weebly.com/uploads/1/3/1/4/131453449/todunasuti-nifakuwus-jutebeg.pdf
    • http://kokulotasuz.mygamesonline.org/39732316827.pdf
    • http://bevasesebesed.iblogger.org/mifevozurutuwafem.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://ladisopezaxak.epizy.com/41538915709.pdf
    • https://uploads.strikinglycdn.com/files/8131427f-ca73-4d83-8285-f695a4aaa0e7/engineering_mechanics_statics_jl_meriam_solutions.pdf
    • http://guvoperar.epizy.com/free_romantic_novels_to_read_online_by_maya_banks.pdf
    • http://fereralud.epizy.com/install_android_sdk_ubuntu_16.pdf
    • http://fuvarijes.atwebpages.com/what_does_othello_say_before_he_kills_desdemona.pdf
    • https://uploads.strikinglycdn.com/files/65b3d8ef-36d2-41a8-a816-738590c2b41f/63861260780.pdf
    • http://virirunabeso.rf.gd/report_nuisance_calls_sky.pdf
    • http://bunopudo.rf.gd/31195838058.pdf
    • http://teropisarazo.myartsonline.com/fekodax.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001265b.bin
622d23e7f123f9fa2dffdd67e8ae139e33f8d28c1985f6c74cac8282b822f392		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1265B 4880 bytes
font_01_sfnt_off000136dc.bin
0f5714538e970d0e086e6c02def379714dc39ff52a9809547d6501fe3dcfdc54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x136DC 10428 bytes
font_02_sfnt_off00015abe.bin
9d69015e80d9a2e1187e47fa12f9e21710e39cfd498b5e21d11abeb53695c3a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15ABE 17524 bytes
font_03_sfnt_off00017490.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17490 4324 bytes

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