Malicious PDF — malware analysis report

Static analysis result for SHA-256 071f2b47d719dd78…

MALICIOUS

PDF

81.6 KB Created: 2021-03-15 14:11:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 646b409be8502244e7b9964c7da041e5 SHA-1: ec1bc4c3df71f7038fe0b0c43006cfc23181818e SHA-256: 071f2b47d719dd78ae1764342702f82097e9050e50add928d1100bf0ea4d3c65
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely used for phishing or malware distribution. The document body, though partially corrupted, contains text related to a search query, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://baarspo.ru/wix?keyword=letter+a+with+crown+tattoo+meaning PDF link annotation
    • http://towufato.mywebcommunity.org/how_much_do_attorneys_make_in_new_york.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477167/normal_6027a81ff17ce.pdfIn PDF document text
    • http://miribut.mywebcommunity.org/accounting_standard_31.pdfIn PDF document text
    • http://bamupiwabibajew.mywebcommunity.org/primo_levi_if_this_is_a_man_summary.pdfIn PDF document text
    • http://teagreen.space/567751071724eajq.pdfIn PDF document text
    • http://memisada.mygamesonline.org/vaxijujimapori.pdfIn PDF document text
    • http://cenderaoriginator.com/how_to_use_oil_less_turkey_fryerwiu62.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475997/normal_601ac4ce5120b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372376/normal_6046b33cc9e8c.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
    • https://s3.amazonaws.com/kubafezin/zizoguvutuxibapiw.pdfIn PDF document text
    • http://zesafemumibow.myartsonline.com/geological_map_of_europe.pdfIn PDF document text
    • http://wegamaluperetuj.atwebpages.com/vemisibulametut.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/27243524581.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/what_foods_are_complex_carbs.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/44255637654.pdfIn PDF document text
    • https://s3.amazonaws.com/pokixovuxik/helicobacter_pylori_resistente_tratamiento.pdfIn PDF document text
    • http://petojijoxura.onlinewebshop.net/metal_gear_solid_1_pc_cheats.pdfIn PDF document text
    • https://s3.amazonaws.com/gazijewevan/10758551884.pdfIn PDF document text
    • http://zejibanunepi.myartsonline.com/florida_dmv_odometer_statement.pdfIn PDF document text
    • http://bajupigirosinaf.atwebpages.com/gosodedajamoxezi.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/1375976372.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/graphing_linear_equations_worksheet_for_grade_8.pdfIn PDF document text
    • http://tepominofujemo.atwebpages.com/raquitismo_definicion.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f54a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF54A 4824 bytes
SHA-256: 834af70ade2d5deee354cb991823d7435e0bb9b043cb5501d2efa1594d873b72
font_01_sfnt_off00010587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10587 10904 bytes
SHA-256: 568e7ecab48c364c4c760746c85029957b137ccb8cfe5931fc1b927645bb4147
font_02_sfnt_off00012ab7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AB7 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

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