Analysis
- max time kernel
149s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
10/09/2026, 07:21
Behavioral task
behavioral1
Sample
cm88.life.exe
Resource
win10v2004-20260513-en
11 signatures
150 seconds
General
- Target cm88.life.exe
- Size 3.1MB
- Sample260910-h6rs7ssxes
- SHA256 abd66daffc200e1259778d3a6484440aa5d4671b47e62da3cae936d54b15e42a
- MD5 c713c7c2bc37d6410dfeb247323e547c
- SHA1 69c417f17097ee43e711bd1e8eea21a5e3499a27
- SHA512 6241e6bac58a01e0c1841fd7927fa22ffedd20b1d9704dd2a12e29ba4d2aa938b2f9ab7944cd42a3702d83556811beb47f84f930187aa9021e4ed3f777ac05d3
- SSDEEP 49152:3v8G42pda6D+/PjlLOlg6yQipVX5RJ6xbR3LoGdyTHHB72eh2NT:3vH42pda6D+/PjlLOlZyQipVX5RJ6T
- TLSH T143E56B143BF85E27E1BBE677A5B0041267F0FC1AF363EB0B6581677A1C53B5098026A7
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
Office04
C2
-
cm88.life:443
-
www.cm88.life:443
-
cm88.life:80
-
www.cm88.life:80
Mutex
-
eb6417e0-4bbd-4569-927d-e4c9aa25f340
Attributes
-
encryption_key
ED3227F773701D05083B11A65776F95F93EEEF5E
-
install_name
Client.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Quasar payload 2 IoCs
resource yara_rule behavioral1/memory/4448-0-0x0000000000A10000-0x0000000000D34000-memory.dmp family_quasar behavioral1/files/0x0002000000023339-5.dat family_quasar - Executes dropped EXE 2 IoCs
pid Process 5100 Client.exe 3840 Client.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 5752 schtasks.exe 2224 schtasks.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4448 cm88.life.exe Token: SeDebugPrivilege 5100 Client.exe Token: SeDebugPrivilege 3840 Client.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 5100 Client.exe - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 5100 Client.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 5100 Client.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4448 wrote to memory of 5752 4448 cm88.life.exe 86 PID 4448 wrote to memory of 5100 4448 cm88.life.exe 88 PID 5100 wrote to memory of 2224 5100 Client.exe 91 - 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
-
C:\Users\Admin\AppData\Local\Temp\cm88.life.exe"C:\Users\Admin\AppData\Local\Temp\cm88.life.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4448 -
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
PID:5752
-
-
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 FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5100 -
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⤵
- Scheduled Task/Job: Scheduled Task
PID:2224
-
-
-
C:\Users\Admin\AppData\Roaming\SubDir\Client.exeC:\Users\Admin\AppData\Roaming\SubDir\Client.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3840
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
- Size 3.1MB
- SHA256 abd66daffc200e1259778d3a6484440aa5d4671b47e62da3cae936d54b15e42a
- MD5 c713c7c2bc37d6410dfeb247323e547c
- SHA1 69c417f17097ee43e711bd1e8eea21a5e3499a27
- SHA512 6241e6bac58a01e0c1841fd7927fa22ffedd20b1d9704dd2a12e29ba4d2aa938b2f9ab7944cd42a3702d83556811beb47f84f930187aa9021e4ed3f777ac05d3
- SSDEEP 49152:3v8G42pda6D+/PjlLOlg6yQipVX5RJ6xbR3LoGdyTHHB72eh2NT:3vH42pda6D+/PjlLOlZyQipVX5RJ6T
- TLSH T143E56B143BF85E27E1BBE677A5B0041267F0FC1AF363EB0B6581677A1C53B5098026A7
- MD5 SHA1 SHA512 SSDEEP TLSH