General
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Target
Kirbana.docx
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Size
203KB
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Sample
240930-prrcfszcnd
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MD5
0848cad87734eda3d07e5c1f4421df54
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SHA1
a3b15ddaadabbd04fb5d8e45195371830bada2ed
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SHA256
64b11a8ac6bde59c9d0446ef7133657080e0709ccafb2583764662150cec6b7e
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SHA512
a2441f2636ad9f157a3f75ce79afd2f42382326d989524988b363292648d723e957cb0bafd025852f88fc2953239ea9be65ada723d178a20c406c21a807ffc61
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SSDEEP
6144:0PnI1dobp1tYnkbeUmeMIHv/R7CKpybx/B0K0o94:0PI1dobp7IQeUXMwCKpybt0o+
Static task
static1
Behavioral task
behavioral1
Sample
Kirbana.docx
Resource
win11-20240802-en
Malware Config
Extracted
remcos
Rem_doc2
107.173.4.16:2404
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-DSGECX
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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take_screenshot_time
5
Targets
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Target
Kirbana.docx
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Size
203KB
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MD5
0848cad87734eda3d07e5c1f4421df54
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SHA1
a3b15ddaadabbd04fb5d8e45195371830bada2ed
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SHA256
64b11a8ac6bde59c9d0446ef7133657080e0709ccafb2583764662150cec6b7e
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SHA512
a2441f2636ad9f157a3f75ce79afd2f42382326d989524988b363292648d723e957cb0bafd025852f88fc2953239ea9be65ada723d178a20c406c21a807ffc61
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SSDEEP
6144:0PnI1dobp1tYnkbeUmeMIHv/R7CKpybx/B0K0o94:0PI1dobp7IQeUXMwCKpybt0o+
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Detected Nirsoft tools
Free utilities often used by attackers which can steal passwords, product keys, etc.
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NirSoft MailPassView
Password recovery tool for various email clients
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NirSoft WebBrowserPassView
Password recovery tool for various web browsers
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Downloads MZ/PE file
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Executes dropped EXE
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Loads dropped DLL
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Accesses Microsoft Outlook accounts
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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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Suspicious use of NtCreateThreadExHideFromDebugger
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Modify Registry
3Subvert Trust Controls
1SIP and Trust Provider Hijacking
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1