Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cef0c96299daaea…

MALICIOUS

PDF

100.6 KB Created: 2021-03-28 10:10:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 69bb96d6064d81f6df89aa136bf00f2a SHA-1: d77c3f69a9fd97c74b486ed614180a70447320d6 SHA-256: 2cef0c96299daaea9874154687b130c9090cde7e5801e2162d01bd8414381a62
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that points to a URL designed to trick the user into downloading a file. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The presence of embedded URLs and the overall structure suggest a phishing attack aimed at delivering a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://seumenha.ru/award?keyword=chava+kadambari+pdf+file+download+in+marathi PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4417212/normal_5fcc8ae50191b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386594/normal_605b1da516ae2.pdfIn PDF document text
    • http://durebemidiges.getenjoyment.net/wopakedesivivo.pdfIn PDF document text
    • https://cdn.sqhk.co/werutojij/jgduokp/35277166726.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisidumes/sjbwggF/bizovomosatibifu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392861/normal_5fdd1c7d84721.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/ijxghib/leap_day_game_february_29.pdfIn PDF document text
    • https://cdn.sqhk.co/dilobowuz/jfggQlT/towadilevo.pdfIn PDF document text
    • http://fukerijinexin.mygamesonline.org/netgear_dgnd3700v2_manuale_italiano.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://jonizuxupofewow.rf.gd/effective_teaching_strategies_in_mathematics.pdfIn PDF document text
    • https://s3.amazonaws.com/gorajikunobixi/fighter_plane_games_for_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tidigudetefumof/85598978450.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27e6e956-ab64-4c06-be60-5b1083dc90ad/what_are_the_themes_of_renaissance_art.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/degraded_performance_definition.pdfIn PDF document text
    • http://wukosow.epizy.com/69078675608.pdfIn PDF document text
    • http://biwodonugawodil.rf.gd/wanesulibivezuzu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d82cad8-fd19-4d19-9c73-4143e5b586df/what_are_the_different_types_of_leaves.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cb9bf2b-ad45-44af-90fd-327c8da1f000/which_penny_stocks_to_buy_in_2020_india.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d22aade7-7d1a-4e90-94d9-468099e86633/binding_of_isaac_four_souls_rules.pdfIn PDF document text
    • https://s3.amazonaws.com/lososimap/eragon_pc_game.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/decf8635-310b-405e-9b4f-90332d0d9e07/befurugininijurepegobe.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/tovarunajimonedegi.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010f97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F97 5272 bytes
SHA-256: 65ef888b5481688a665b83a1391b450b542f2a50493b149f320320f6b8820416
font_01_sfnt_off0001216d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1216D 10708 bytes
SHA-256: b8e5fba7bb17dc2bb324af55db3823c059d55aea2a8f9ee9f00f2b3e5be68ad7
font_02_sfnt_off000144f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x144F5 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
font_03_sfnt_off000152f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x152F6 16160 bytes
SHA-256: faaf29d2e5eb5dfeb13e8ea633cfeb51b4ca6c376ecfadc44e5cc3925aa27ada

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