Analysis
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max time kernel
149s -
max time network
149s -
platform
windows11-21h2_x64 -
resource
win11-20240802-en -
resource tags
arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system -
submitted
27-08-2024 09:33
Static task
static1
Behavioral task
behavioral1
Sample
5ba3af74071e58c1f18c22ac35c6cbb7.exe
Resource
win10v2004-20240802-en
General
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Target
5ba3af74071e58c1f18c22ac35c6cbb7.exe
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Size
2.5MB
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MD5
5ba3af74071e58c1f18c22ac35c6cbb7
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SHA1
7ae9c93f0c69bc86cd7d1abcf34340667a2d791c
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SHA256
2e6db642fad3918398b520cf655d6ca7fc040bd177e30a30bd7f549adb4e48c0
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SHA512
198fe5be5cbfb1be083a91b8c07ce00204cb925a7b605ad7f72648888ac5f723349694dcd0472cdc7271b40e2948ccee23c80cde31b23de837cff3945cbd4b8e
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SSDEEP
49152:XwREDDMAfQRw4z0g3Q1edHeMxWrP+beY7UY714:XwREzfQRDzJQ1edMwZgN
Malware Config
Extracted
remcos
Mentor
hulolawyo199jestie01.duckdns.org:4871
hulolawyo199jestie01.duckdns.org:4872
hulolawyo199jestie02.duckdns.org:4871
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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
true
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install_flag
false
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keylog_crypt
false
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keylog_file
nabytrotis.dat
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keylog_flag
false
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keylog_path
%AppData%
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mouse_option
false
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mutex
janoutgurf-P6FGU2
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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
- startup_value
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Detect DarkGate stealer 1 IoCs
Processes:
resource yara_rule behavioral2/memory/1544-16-0x0000000000ED0000-0x00000000012D0000-memory.dmp family_darkgate_v6 -
Executes dropped EXE 2 IoCs
Processes:
5ba3af74071e58c1f18c22ac35c6cbb7.tmpfzxujk.exepid process 868 5ba3af74071e58c1f18c22ac35c6cbb7.tmp 1544 fzxujk.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
fzxujk.exedescription pid process target process PID 1544 set thread context of 5076 1544 fzxujk.exe GoogleUpdateCore.exe -
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
5ba3af74071e58c1f18c22ac35c6cbb7.tmpfzxujk.exeGoogleUpdateCore.exe5ba3af74071e58c1f18c22ac35c6cbb7.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5ba3af74071e58c1f18c22ac35c6cbb7.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language fzxujk.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language GoogleUpdateCore.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5ba3af74071e58c1f18c22ac35c6cbb7.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
fzxujk.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString fzxujk.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 fzxujk.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
GoogleUpdateCore.exepid process 5076 GoogleUpdateCore.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
5ba3af74071e58c1f18c22ac35c6cbb7.exe5ba3af74071e58c1f18c22ac35c6cbb7.tmpfzxujk.exedescription pid process target process PID 4476 wrote to memory of 868 4476 5ba3af74071e58c1f18c22ac35c6cbb7.exe 5ba3af74071e58c1f18c22ac35c6cbb7.tmp PID 4476 wrote to memory of 868 4476 5ba3af74071e58c1f18c22ac35c6cbb7.exe 5ba3af74071e58c1f18c22ac35c6cbb7.tmp PID 4476 wrote to memory of 868 4476 5ba3af74071e58c1f18c22ac35c6cbb7.exe 5ba3af74071e58c1f18c22ac35c6cbb7.tmp PID 868 wrote to memory of 1544 868 5ba3af74071e58c1f18c22ac35c6cbb7.tmp fzxujk.exe PID 868 wrote to memory of 1544 868 5ba3af74071e58c1f18c22ac35c6cbb7.tmp fzxujk.exe PID 868 wrote to memory of 1544 868 5ba3af74071e58c1f18c22ac35c6cbb7.tmp fzxujk.exe PID 1544 wrote to memory of 5076 1544 fzxujk.exe GoogleUpdateCore.exe PID 1544 wrote to memory of 5076 1544 fzxujk.exe GoogleUpdateCore.exe PID 1544 wrote to memory of 5076 1544 fzxujk.exe GoogleUpdateCore.exe PID 1544 wrote to memory of 5076 1544 fzxujk.exe GoogleUpdateCore.exe PID 1544 wrote to memory of 5076 1544 fzxujk.exe GoogleUpdateCore.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5ba3af74071e58c1f18c22ac35c6cbb7.exe"C:\Users\Admin\AppData\Local\Temp\5ba3af74071e58c1f18c22ac35c6cbb7.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4476 -
C:\Users\Admin\AppData\Local\Temp\is-NGEJC.tmp\5ba3af74071e58c1f18c22ac35c6cbb7.tmp"C:\Users\Admin\AppData\Local\Temp\is-NGEJC.tmp\5ba3af74071e58c1f18c22ac35c6cbb7.tmp" /SL5="$13022C,1651783,845824,C:\Users\Admin\AppData\Local\Temp\5ba3af74071e58c1f18c22ac35c6cbb7.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:868 -
C:\Users\Admin\AppData\Local\Temp\is-UJH5J.tmp\fzxujk.exe"C:\Users\Admin\AppData\Local\Temp\is-UJH5J.tmp\fzxujk.exe" C:\Users\Admin\AppData\Local\Temp\is-UJH5J.tmp\script.a3x3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
PID:1544 -
C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe"C:\Program Files (x86)\Google\Update\1.3.36.371\GoogleUpdateCore.exe"4⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:5076
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.2MB
MD5e587511f17c07622f2e88bde6dc2a499
SHA108899e43445db2e0d000b3afd80e028636786eeb
SHA2569fbf0748b5d890c2c28b1ae20aad7fc23a93cc7a57c4a51220d9381af7637c60
SHA5122e59d9c525c5383c4ea66c785584aa69256a47ffe928a6595cc2bf07469d2da4dd56dcd3d3d42496e593c39eec6356fc4c8a9cdeee6770c7e6c3319b8b614c6e
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Filesize
872KB
MD5c56b5f0201a3b3de53e561fe76912bfd
SHA12a4062e10a5de813f5688221dbeb3f3ff33eb417
SHA256237d1bca6e056df5bb16a1216a434634109478f882d3b1d58344c801d184f95d
SHA512195b98245bb820085ae9203cdb6d470b749d1f228908093e8606453b027b7d7681ccd7952e30c2f5dd40f8f0b999ccfc60ebb03419b574c08de6816e75710d2c
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Filesize
653KB
MD59ca5723b051b92f691e7a7b429f79bca
SHA17824fc09ac6a7e8e7517e084e4bf28db4e68e991
SHA25667ab963c9d63cf6343277d63bdd7160329d9a13597cc2f59233883d19adb0309
SHA5129fa68bb561c31e9e2a5655b54f10df771777ac8eec76de757bedac0011893a8a547d52f0aca59a6d07624675d34766fa8bbede514a22432d58b1ab3775502638