Analysis
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max time kernel
149s -
max time network
142s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
11-04-2024 00:24
Behavioral task
behavioral1
Sample
2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe
Resource
win7-20240220-en
General
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Target
2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe
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Size
4.7MB
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MD5
11ac8632bfdc6befcb2e450c8cfba019
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SHA1
5a73cdcaf4f77f351fe19542d79a329e7c217bb4
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SHA256
071fed2284f56078a1f541e8f9915eb908548bef0548d8672e3237972423cbe9
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SHA512
e99e82bc8343fc405c884f8be89a88ea09eb8194331639e59b95d371be689269d6fc92b15430426878865f7e8962e4d76a8e0edc8589861dbdefd34eea83a68d
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SSDEEP
98304:mjN0SLc/vr22SsaNYfdPBldt6+dBcjHtKRJ6BMIbzZZIbzZR:HSI3M7jGIPsj
Malware Config
Extracted
quasar
1.4.1
Office04
mx5.deitie.asia:4495
ebbf737a-dddd-43dd-9b0a-74831302455d
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encryption_key
F8516D89A1DFD78BD8FF575BBC3AE828B47FF0E1
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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
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar payload 2 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe family_quasar behavioral2/memory/2656-4-0x0000000000620000-0x0000000000944000-memory.dmp family_quasar -
Detects Windows executables referencing non-Windows User-Agents 2 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/2656-4-0x0000000000620000-0x0000000000944000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 2 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe INDICATOR_SUSPICIOUS_Binary_References_Browsers behavioral2/memory/2656-4-0x0000000000620000-0x0000000000944000-memory.dmp INDICATOR_SUSPICIOUS_Binary_References_Browsers -
Detects executables containing common artifacts observed in infostealers 2 IoCs
Processes:
resource yara_rule C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe INDICATOR_SUSPICIOUS_GENInfoStealer behavioral2/memory/2656-4-0x0000000000620000-0x0000000000944000-memory.dmp INDICATOR_SUSPICIOUS_GENInfoStealer -
Drops startup file 1 IoCs
Processes:
2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe 2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe -
Executes dropped EXE 2 IoCs
Processes:
sign.exeClient.exepid process 2656 sign.exe 3424 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 4788 schtasks.exe 3316 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exepid process 4616 2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe 4616 2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
sign.exeClient.exedescription pid process Token: SeDebugPrivilege 2656 sign.exe Token: SeDebugPrivilege 3424 Client.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exepid process 4616 2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe 4616 2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exesign.exeClient.exedescription pid process target process PID 4616 wrote to memory of 2656 4616 2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe sign.exe PID 4616 wrote to memory of 2656 4616 2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe sign.exe PID 2656 wrote to memory of 4788 2656 sign.exe schtasks.exe PID 2656 wrote to memory of 4788 2656 sign.exe schtasks.exe PID 2656 wrote to memory of 3424 2656 sign.exe Client.exe PID 2656 wrote to memory of 3424 2656 sign.exe Client.exe PID 3424 wrote to memory of 3316 3424 Client.exe schtasks.exe PID 3424 wrote to memory of 3316 3424 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\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe"C:\Users\Admin\AppData\Local\Temp\2024-04-11_11ac8632bfdc6befcb2e450c8cfba019_icedid_xrat.exe"1⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4616 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\sign.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\\sign.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2656 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
PID:4788 -
C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3424 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f4⤵
- Creates scheduled task(s)
PID:3316
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
3.1MB
MD57498d554976744dfbd271ba755c6c192
SHA1ec733d01e776518e387d2f51d1a6559b81f03b1e
SHA25644089202623b9671051aa5bba5e72f81f68ce818c3054dde57726aaa6dcb9ff7
SHA512d4e987d0e6235001fac4ae3a634e8fe98c6830e26a6a6876fbc36262842688d3ec301cff75003d2af695cdfd357ac50919946695b7d5d3293ebcba97153e1030