Analysis
- max time kernel
150s - max time network
150s - platform
windows7_x64 - resource
win7-en-20211104 - submitted
24/11/2021, 14:41
General
- Target vbc.exe
- Size 297KB
- Sample211124-r2fd2sgbb6
- SHA256 4b50745e74fea6faa516b4d46b7c9fbe36fdae2301b76ec940635d033707a2c8
Malware Config
Extracted
-
xloader
-
2.5
-
m07f
-
http://www.ff4cu6twc.xyz/m07f/
-
khitthit.club
-
kczu.net
-
caylalamar.com
-
iixiazai.com
-
nickatwoodrealestate.com
-
006664.com
-
strimsbdltd.com
-
mykyhouse.com
-
flyestkicks.com
-
campingwithoutcanvas.com
-
sarishamisen.com
-
retrorecycling.com
-
zw4azsjb3cuj.biz
-
lokasennaservices.com
-
charleswagner.xyz
-
smmbazar.net
-
rebornmkt.com
-
clicktoreach.com
-
alendigital.xyz
-
carehrc.com
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- Xloader Payload 4 IoCs
- Deletes itself 1 IoCs
- Loads dropped DLL 1 IoCs
- Uses the VBS compiler for execution 1 TTPs
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 30 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
-
-
-
C:\Windows\SysWOW64\cscript.exe"C:\Windows\SysWOW64\cscript.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe/c del "C:\Users\Admin\AppData\Local\Temp\vbc.exe"3⤵
- Deletes itself
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/572-64-0x00000000003A0000-0x00000000003B1000-memory.dmp
memory/572-63-0x0000000000400000-0x0000000000429000-memory.dmp
memory/572-60-0x0000000000820000-0x0000000000B23000-memory.dmp
memory/572-61-0x00000000002C0000-0x00000000002D1000-memory.dmp
memory/572-57-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1272-62-0x0000000006B30000-0x0000000006CB7000-memory.dmp
memory/1272-72-0x00000000040D0000-0x0000000004179000-memory.dmp
memory/1272-65-0x0000000007100000-0x0000000007222000-memory.dmp
memory/1592-55-0x0000000075731000-0x0000000075733000-memory.dmp
memory/1928-69-0x0000000000070000-0x0000000000099000-memory.dmp
memory/1928-68-0x00000000003B0000-0x00000000003D2000-memory.dmp
memory/1928-70-0x0000000002110000-0x0000000002413000-memory.dmp
memory/1928-71-0x0000000000670000-0x0000000000700000-memory.dmp