Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
17-04-2024 02:11
Behavioral task
behavioral1
Sample
9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe
Resource
win7-20240221-en
General
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Target
9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe
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Size
3.1MB
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MD5
e9633057e16f92098ddc3a798feeaff2
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SHA1
3923362ecc24bbc6c61eda73caecaccb83511573
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SHA256
9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326
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SHA512
48b60794cf45127452de0b69f9275de62243e3ef5c7f65b7c7f0701d1cbc91b1fe1e6e7b8f5d543298ab88692210e60ca50b0b88f2d4221c3d7190eb0aaeb3a9
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SSDEEP
49152:3vrI22SsaNYfdPBldt698dBcjHXXo8dpDVoGdi5THHB72eh2NT:3vU22SsaNYfdPBldt6+dBcjHnoe
Malware Config
Extracted
quasar
1.4.1
Office04
LunasLove-64385.portmap.host:64385
508f4b75-ce7c-432c-b5a7-7763b93b6ac5
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encryption_key
76EBDC42E51E79D0A828180D2490940F63BFFF8C
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
WindowsClient
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subdirectory
SubDir
Signatures
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Quasar payload 2 IoCs
Processes:
resource yara_rule behavioral2/memory/3928-0-0x0000000000FD0000-0x00000000012F4000-memory.dmp family_quasar C:\Users\Admin\AppData\Roaming\SubDir\Client.exe family_quasar -
Detects Windows executables referencing non-Windows User-Agents 2 IoCs
Processes:
resource yara_rule behavioral2/memory/3928-0-0x0000000000FD0000-0x00000000012F4000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA C:\Users\Admin\AppData\Roaming\SubDir\Client.exe INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs
Processes:
resource yara_rule behavioral2/memory/3928-0-0x0000000000FD0000-0x00000000012F4000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers C:\Users\Admin\AppData\Roaming\SubDir\Client.exe INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects executables containing common artifacts observed in infostealers 2 IoCs
Processes:
resource yara_rule behavioral2/memory/3928-0-0x0000000000FD0000-0x00000000012F4000-memory.dmp INDICATOR_SUSPICIOUS_GENInfoStealer C:\Users\Admin\AppData\Roaming\SubDir\Client.exe INDICATOR_SUSPICIOUS_GENInfoStealer -
Executes dropped EXE 1 IoCs
Processes:
Client.exepid process 4240 Client.exe -
Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exepid process 3152 schtasks.exe 2756 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exeClient.exedescription pid process Token: SeDebugPrivilege 3928 9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe Token: SeDebugPrivilege 4240 Client.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Client.exepid process 4240 Client.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exeClient.exedescription pid process target process PID 3928 wrote to memory of 3152 3928 9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe schtasks.exe PID 3928 wrote to memory of 3152 3928 9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe schtasks.exe PID 3928 wrote to memory of 4240 3928 9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe Client.exe PID 3928 wrote to memory of 4240 3928 9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe Client.exe PID 4240 wrote to memory of 2756 4240 Client.exe schtasks.exe PID 4240 wrote to memory of 2756 4240 Client.exe schtasks.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe"C:\Users\Admin\AppData\Local\Temp\9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3928 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "WindowsClient" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
PID:3152 -
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4240 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "WindowsClient" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
PID:2756
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.1MB
MD5e9633057e16f92098ddc3a798feeaff2
SHA13923362ecc24bbc6c61eda73caecaccb83511573
SHA2569e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326
SHA51248b60794cf45127452de0b69f9275de62243e3ef5c7f65b7c7f0701d1cbc91b1fe1e6e7b8f5d543298ab88692210e60ca50b0b88f2d4221c3d7190eb0aaeb3a9