Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc781061bb6cf3e0…

MALICIOUS

PDF

80.9 KB Created: 2021-03-02 12:41:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: fa1b3e7d645d8aca2e50f5ad41e8e91d SHA-1: 383ead8e207fb517464d28f1a5dfa82f16667729 SHA-256: cc781061bb6cf3e0ff042e979e6ecb4b30ac093124cbc47d07464a14789bfc5e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a website offering a 'launcher apk 2020', which is a common lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware delivery. No scripts were extracted, but the presence of the malicious URL and the nature of the lure suggest a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://seumenha.ru/wix?keyword=launcher+apk+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4389352/normal_603353e197882.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463812/normal_5fd34d4dd6118.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/gigRggd/buvexanufakireno.pdfIn PDF document text
    • http://rumurel.mywebcommunity.org/scott_pilgrim_castle.pdfIn PDF document text
    • http://mojadejazisapa.sportsontheweb.net/printable_blank_world_map_with_latitude_and_longitude.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368741/normal_5ff8da0b72974.pdfIn PDF document text
    • http://kumululurug.scienceontheweb.net/how_to_adjust_poulan_pro_carburetor.pdfIn PDF document text
    • http://lenuvivureropi.scienceontheweb.net/teutonic_religion_kveldulf_gundarsson.pdfIn PDF document text
    • http://sitebomobegux.sportsontheweb.net/scatter_plot_practice_worksheet_answers.pdfIn PDF document text
    • https://cdn.sqhk.co/duzimisese/ey6ijWe/pixelmon_lucky_block_mod_addons_1._12._2.pdfIn PDF document text
    • https://cdn.sqhk.co/folikulezig/Uu3ueib/werugimo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452612/normal_6016fe1607f68.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/kavalukato/fikarasujovaguwirulerudos.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/70110660788.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/tatul.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/geometric_and_arithmetic_series_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/minabiwa/micdroid_auto_tune_app_for_android.pdfIn PDF document text
    • http://geforagegi.atwebpages.com/37614365539.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/jemizopuwiwajerexiz.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/81946607775.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/bartow_county_jail_report.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/golagavumotokaloxujorelog.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4C1 5092 bytes
SHA-256: a839e558ba53716ce25bcfcbf79133898c49628d1c5bafbad673d5ae50f619c1
font_01_sfnt_off0000f60e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF60E 13508 bytes
SHA-256: 66144e953b20efee9c8223b266d833fc4c1036232111ea2b8d0156193c057a97
font_02_sfnt_off00012131.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12131 16176 bytes
SHA-256: 5a8f2dd9df59b25e388877dd58ea60eefd67f185755daf925fe6bd1c9cb05bc6