General
-
Target
Uni.bat
-
Size
301KB
-
Sample
240508-vnlkpagh86
-
MD5
1f089d9bb03dad6a421dc626a1a1388d
-
SHA1
44b708c87c743b09c3380427aa0c64e196438d76
-
SHA256
d1c5a6ee28141a729b788a725748d718c2cf26d6cf66c19a524072eeb03cf334
-
SHA512
fd6c6e5588e588e482a15bfe7a5f4608fe85452916b812319336bf422b07a3f76ef7415b64d99bc7f624e57aa362c388576db529e064a3dfbbc4ec01aebec324
-
SSDEEP
6144:UDAQODtb/MLJcwze2hz1uQ1VEqPfvBaidW+wYHlad/vb7V1:UDROhbMNcE7hv1VLZtMTK+/jJ1
Static task
static1
Behavioral task
behavioral1
Sample
Uni.bat
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
Uni.bat
Resource
win7-20231129-en
Behavioral task
behavioral3
Sample
Uni.bat
Resource
win10v2004-20240426-en
Malware Config
Extracted
quasar
3.1.5
SLAVE
even-lemon.gl.at.ply.gg:33587
$Sxr-dOMA5C0pQTTpKjVsCp
-
encryption_key
UBXs44u6E81wxBGZxQHk
-
install_name
$sxr-powershell.exe
-
log_directory
$SXR-KEYLOGS
-
reconnect_delay
3000
-
startup_key
$sxr-powershell
-
subdirectory
$sxr-seroxen2
Targets
-
-
Target
Uni.bat
-
Size
301KB
-
MD5
1f089d9bb03dad6a421dc626a1a1388d
-
SHA1
44b708c87c743b09c3380427aa0c64e196438d76
-
SHA256
d1c5a6ee28141a729b788a725748d718c2cf26d6cf66c19a524072eeb03cf334
-
SHA512
fd6c6e5588e588e482a15bfe7a5f4608fe85452916b812319336bf422b07a3f76ef7415b64d99bc7f624e57aa362c388576db529e064a3dfbbc4ec01aebec324
-
SSDEEP
6144:UDAQODtb/MLJcwze2hz1uQ1VEqPfvBaidW+wYHlad/vb7V1:UDROhbMNcE7hv1VLZtMTK+/jJ1
-
Quasar payload
-
Suspicious use of NtCreateUserProcessOtherParentProcess
-
Downloads MZ/PE file
-
Sets service image path in registry
-
Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
-
Executes dropped EXE
-
Loads dropped DLL
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Legitimate hosting services abused for malware hosting/C2
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
-
Drops file in System32 directory
-
Suspicious use of SetThreadContext
-
MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Defense Evasion
Modify Registry
2Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1