Malicious PDF — malware analysis report

Static analysis result for SHA-256 6006dee848774de9…

MALICIOUS

PDF

90.4 KB Created: 2021-03-12 15:33:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9b8fda324acf36e140d0c3a31e0a44dc SHA-1: e8d5563496d97d39ff580c89da38d171f80908b7 SHA-256: 6006dee848774de9b57be848015f693149509655ab00169341f1fed1e296918a
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, identified as malicious by ML classifiers and ClamAV. The document body, though heavily obfuscated, suggests a lure related to 'workplace harassment'. The presence of external URIs indicates an attempt to redirect the user to a potentially malicious site, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/award?keyword=types+of+workplace+harassment+pdf
    • http://topepuxabi.iblogger.org/aplikasi_story_saver_wa.pdf
    • https://wawotisusuwo.weebly.com/uploads/1/3/2/7/132741293/bewonixege_legabuzojut.pdf
    • https://sevenunoxesu.weebly.com/uploads/1/3/4/3/134341304/7261fe.pdf
    • https://cdn.sqhk.co/letinumi/uMBggzO/free_ghost_in_photo_prank.pdf
    • https://cdn.sqhk.co/daborofus/hichebR/go_live_chat.pdf
    • http://saxefitipar.iblogger.org/9575409318.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://e7f45dcf-1957-410e-85b1-216e85a225c4.filesusr.com/ugd/a2c2bc_165200390ae345649ac85c22fc008867.pdf?index=true
    • https://s3.amazonaws.com/lewuli/loneliness_english_song.pdf
    • https://s3.amazonaws.com/fojaxexino/what_are_the_advantage_and_disadvantage_of_capitalist_economy.pdf
    • http://debagejusuwaj.epizy.com/7171117093.pdf
    • http://gifazewuki.epizy.com/16212365850.pdf
    • http://bogasupi.rf.gd/bootstrap_4_w3schools_templates.pdf
    • http://josisuvo.epizy.com/google_spreadsheet_dropdown_in_cell.pdf
    • https://s3.amazonaws.com/tokit/fishing_guide_school_minnesota.pdf
    • http://jujabezemaluwe.rf.gd/fetal_biometry.pdf
    • https://s3.amazonaws.com/jipowumat/marantic_endocarditis_case_report.pdf
    • http://zuxakenupe.epizy.com/lakshmi_narasimha_naa_songs_ing.pdf
    • http://gavisijimaraw.rf.gd/17201987561.pdf
    • https://59bb578d-b312-442a-858b-1a1a54b18a6c.filesusr.com/ugd/c79b1c_d6102b8ee02b435c9d9a72fc4e44dbfb.pdf?index=true
    • https://s3.amazonaws.com/jeromopelurab/34251866855.pdf
    • https://caf0f927-206f-4b4e-aa34-0dd3da53679b.filesusr.com/ugd/83d902_e2f9acd59e5f4700a7dadeb59b788b61.pdf?index=true
    • 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000125a4.bin
49f2d145f2dfc8c84c762981778a56dd7a6a0db61df4b5e898cb90d5424e16c5
pdf-font-stream PDF embedded font (sfnt) at offset 0x125A4 5600 bytes
font_01_sfnt_off0001389e.bin
6138cd5b87fe251b377f3fee9d4127f2b74754b4bfe79aad1c04255cfe2fc05b
pdf-font-stream PDF embedded font (sfnt) at offset 0x1389E 10436 bytes