Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aa9f68076ad8e9c…

MALICIOUS

PDF

99.3 KB Created: 2021-02-24 00:54:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 580f496f07c805fca7bc8a1be1d4ddcd SHA-1: 1372cae2bc50660af9becd256def1405e4bd7f5e SHA-256: 8aa9f68076ad8e9cc97d0ac46958c8401424c338090d399b2b2a4976487edd4a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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/wix?keyword=tanker+endorsement+study+guide+florida PDF link annotation
    • https://cdn.sqhk.co/minofavazu/Ujdijia/toca_nature_play_store.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404727/normal_6026bf597f623.pdfIn PDF document text
    • https://cdn.sqhk.co/delojiwuguj/Siaiaji/simple_soccer_skills_for_beginners.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420602/normal_60313951ced44.pdfIn PDF document text
    • https://cdn.sqhk.co/kakumipoman/hhzlnih/kotapofapaluvorapixofusin.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413125/normal_5fcd4447ae13b.pdfIn PDF document text
    • http://copyrightviolationcenters.com/how_to_connect_jlab_bt_to_iphonek4dfp.pdfIn PDF document text
    • http://mujusudi.iblogger.org/duwetulagazikunoximapa.pdfIn PDF document text
    • https://cdn.sqhk.co/teketerep/jdchaih/ant_killer_home_depot.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/jazamerijekufol/residential_care_home_service_user_guide.pdfIn PDF document text
    • http://famebod.epizy.com/zivatenulijexutiwa.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/98659142297.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/new_movies_tamil_app.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/traxxas_velineon_vxl-3s_esc.pdfIn PDF document text
    • https://s3.amazonaws.com/viregujipowuru/6010325508.pdfIn PDF document text
    • http://kavexuvosa.epizy.com/clicker_universal_garage_door_opener_stopped_working_just_clicks.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/33959818952.pdfIn PDF document text
    • https://s3.amazonaws.com/jokotaziweluge/zovofexenapu.pdfIn PDF document text
    • https://s3.amazonaws.com/pukaridimupo/184840115.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off00016d5b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x16D5B 6504 bytes
SHA-256: 5980781161e00668b8911b5d3e40ef4e8edeab8c7861d34d8363c8c351691142
font_00_sfnt_off0000e7ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7AD 7516 bytes
SHA-256: 76f34301b0f0f3260df63e8e06ee417912ceebc1ec9b161224d906abd4afa021
font_01_sfnt_off0000fb31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB31 3148 bytes
SHA-256: 3d18dca7e3151ab78b523ac4104e86b88c6789bd7feb2b9d7711bf9cdfa03466
font_02_sfnt_off00010671.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10671 5344 bytes
SHA-256: b4f9650599208bd1b62ad08cc253cf6cb6a7c0d9b8a135cd981d000d226f5fd1
font_03_sfnt_off0001185a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1185A 6280 bytes
SHA-256: a3b179770175167fc105d601e782d97fe9fd5fdbff0be5084ea02020e73dba2c
font_04_sfnt_off000127c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127C2 15544 bytes
SHA-256: d3f11b20c0f7f57fad65114b26833b9aa2076b02d45d8ef816e6ec52642ba9eb
font_05_sfnt_off000156bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x156BC 16516 bytes
SHA-256: f3bf7d65e83e0dc75c5df7c05093edf1192c13d377daee4cf108b80aa32c4637

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