Analysis
- max time kernel
150s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20251231-en - resource tags
arch:x64arch:x86image:win10v2004-20251231-enlocale:en-usos:windows10-2004-x64system - submitted
06/01/2026, 07:33
Behavioral task
behavioral1
Sample
ie.exe
Resource
win10v2004-20251231-en
9 signatures
150 seconds
General
- Target ie.exe
- Size 3.1MB
- Sample260106-jdl8paev6d
- SHA256 5c8a4a8a13892a089efe1ad9b78a01e5811e7bb5b77e4c62d6da7781abf32198
- MD5 518db4c02488525d1173447376a8a767
- SHA1 c331515434632feaa8169b92095c91e7cc13f9fc
- SHA512 0b48a057fb7e0957670c33567c0f220d4227b47a530cd286c8a11582098f0697ac6f3580db4d17cfa48eeb947dcc67a9095dd6ae4d9c656874217dd78496e422
- SSDEEP 49152:Ov9iiN2tPa2vpJPylxhhC25D/Wv13oZ5CBx0LoGdNTHHB72eh2NT:OvMq2tPa2vpJPylxhhz5D/WN3+5L
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
quasar
Version
-
1.4.1
Botnet
-
Office04
C2
-
virtuoso.uk.com:4782
-
traumvillen.de.com:4782
-
client.virtuoso.uk.com:4782
-
client.traumvillen.de.com:4782
-
server.virtuoso.uk.com:4782
-
server.traumvillen.de.com:4782
Mutex
-
c6afbaf2-b818-40a0-b739-28c0a61615e0
Attributes
-
encryption_key
62BC9D9DFC3C056E2C9CDF76A546148831165DEF
-
install_name
ie.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
Quasar Client Startup
-
subdirectory
Programme
Signatures
- Quasar family
- Quasar payload 2 IoCs
resource yara_rule behavioral1/memory/5984-0-0x0000000000610000-0x0000000000934000-memory.dmp family_quasar behavioral1/files/0x0002000000023018-4.dat family_quasar - Executes dropped EXE 1 IoCs
pid Process 4544 ie.exe - Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\system32\Programme\ie.exe ie.exe File opened for modification C:\Windows\system32\Programme\ie.exe ie.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 5984 ie.exe Token: SeDebugPrivilege 4544 ie.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4544 ie.exe - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 4544 ie.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5984 wrote to memory of 4544 5984 ie.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\ie.exe"C:\Users\Admin\AppData\Local\Temp\ie.exe"1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5984 -
C:\Windows\system32\Programme\ie.exe"C:\Windows\system32\Programme\ie.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4544
-
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\ie.exe.log
- Size 1KB
- SHA256 ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924
- MD5 baf55b95da4a601229647f25dad12878
- SHA1 abc16954ebfd213733c4493fc1910164d825cac8
- SHA512 24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545
- MD5 SHA1 SHA512
- Path C:\Windows\System32\Programme\ie.exe
- Size 3.1MB
- SHA256 5c8a4a8a13892a089efe1ad9b78a01e5811e7bb5b77e4c62d6da7781abf32198
- MD5 518db4c02488525d1173447376a8a767
- SHA1 c331515434632feaa8169b92095c91e7cc13f9fc
- SHA512 0b48a057fb7e0957670c33567c0f220d4227b47a530cd286c8a11582098f0697ac6f3580db4d17cfa48eeb947dcc67a9095dd6ae4d9c656874217dd78496e422
- SSDEEP 49152:Ov9iiN2tPa2vpJPylxhhC25D/Wv13oZ5CBx0LoGdNTHHB72eh2NT:OvMq2tPa2vpJPylxhhz5D/WN3+5L
- MD5 SHA1 SHA512 SSDEEP