Analysis
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max time kernel
149s -
max time network
154s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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 3 IoCs
Processes:
resource yara_rule behavioral1/memory/2768-0-0x00000000010C0000-0x00000000013E4000-memory.dmp family_quasar C:\Users\Admin\AppData\Roaming\SubDir\Client.exe family_quasar behavioral1/memory/3056-10-0x0000000000990000-0x0000000000CB4000-memory.dmp family_quasar -
Detects Windows executables referencing non-Windows User-Agents 3 IoCs
Processes:
resource yara_rule behavioral1/memory/2768-0-0x00000000010C0000-0x00000000013E4000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA C:\Users\Admin\AppData\Roaming\SubDir\Client.exe INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral1/memory/3056-10-0x0000000000990000-0x0000000000CB4000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 3 IoCs
Processes:
resource yara_rule behavioral1/memory/2768-0-0x00000000010C0000-0x00000000013E4000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers C:\Users\Admin\AppData\Roaming\SubDir\Client.exe INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral1/memory/3056-10-0x0000000000990000-0x0000000000CB4000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects executables containing common artifacts observed in infostealers 3 IoCs
Processes:
resource yara_rule behavioral1/memory/2768-0-0x00000000010C0000-0x00000000013E4000-memory.dmp INDICATOR_SUSPICIOUS_GENInfoStealer C:\Users\Admin\AppData\Roaming\SubDir\Client.exe INDICATOR_SUSPICIOUS_GENInfoStealer behavioral1/memory/3056-10-0x0000000000990000-0x0000000000CB4000-memory.dmp INDICATOR_SUSPICIOUS_GENInfoStealer -
Executes dropped EXE 1 IoCs
Processes:
Client.exepid process 3056 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 2876 schtasks.exe 2504 schtasks.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exeClient.exedescription pid process Token: SeDebugPrivilege 2768 9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe Token: SeDebugPrivilege 3056 Client.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Client.exepid process 3056 Client.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exeClient.exedescription pid process target process PID 2768 wrote to memory of 2876 2768 9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe schtasks.exe PID 2768 wrote to memory of 2876 2768 9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe schtasks.exe PID 2768 wrote to memory of 2876 2768 9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe schtasks.exe PID 2768 wrote to memory of 3056 2768 9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe Client.exe PID 2768 wrote to memory of 3056 2768 9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe Client.exe PID 2768 wrote to memory of 3056 2768 9e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326.exe Client.exe PID 3056 wrote to memory of 2504 3056 Client.exe schtasks.exe PID 3056 wrote to memory of 2504 3056 Client.exe schtasks.exe PID 3056 wrote to memory of 2504 3056 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:2768 -
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:2876 -
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:3056 -
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:2504
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.1MB
MD5e9633057e16f92098ddc3a798feeaff2
SHA13923362ecc24bbc6c61eda73caecaccb83511573
SHA2569e1276a64065335038649c9c55137633d4b02b0a3d564635f621f41b5890b326
SHA51248b60794cf45127452de0b69f9275de62243e3ef5c7f65b7c7f0701d1cbc91b1fe1e6e7b8f5d543298ab88692210e60ca50b0b88f2d4221c3d7190eb0aaeb3a9