Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
17/03/2022, 13:55
General
- Target vbc.exe
- Size 427KB
- Sample220317-q769aaefc8
- SHA256 739e94a41234bd028fae27705c6d0ff5d8d9925068384bcdfe4cdecc1fb36e4f
Malware Config
Extracted
-
xloader
-
2.5
-
e3b2
-
treehousemunnar.com
-
ipabulletin.com
-
cures8t.com
-
happy-news.biz
-
cosmobellemedspa.com
-
duplocreativo.com
-
founderqlxwfh.online
-
weinsteinanddouglas.com
-
dowseteethalbee.com
-
grandbowls.xyz
-
strfolio.com
-
agoradespossibles.com
-
monarchap.com
-
at7eleven.ink
-
prayrowan.com
-
mgc-taxconsultant.com
-
virtuallyrhonda.com
-
adobitssacv.com
-
grouptuzun.com
-
jdzqn.com
Signatures
- Xloader
Xloader is a rebranded version of Formbook malware.
- Xloader Payload 6 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Uses the VBS compiler for execution 1 TTPs
- Suspicious use of SetThreadContext 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 51 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
-
C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\krFFLtFjhg" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCA71.tmp"3⤵
- Creates scheduled task(s)
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"{path}"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
-
-
-
C:\Windows\SysWOW64\help.exe"C:\Windows\SysWOW64\help.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:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"3⤵
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/992-151-0x0000000008A20000-0x0000000008B7F000-memory.dmp
memory/992-146-0x00000000085F0000-0x00000000086D8000-memory.dmp
memory/1864-140-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1864-142-0x0000000000400000-0x0000000000429000-memory.dmp
memory/1864-143-0x00000000018A0000-0x0000000001BEA000-memory.dmp
memory/1864-144-0x000000000041D000-0x000000000041E000-memory.dmp
memory/1864-145-0x0000000001C10000-0x0000000001C21000-memory.dmp
memory/2716-138-0x000000007F870000-0x000000007F871000-memory.dmp
memory/2716-133-0x00000000056E0000-0x0000000005772000-memory.dmp
memory/2716-130-0x0000000000BC0000-0x0000000000C32000-memory.dmp
memory/2716-134-0x0000000005680000-0x000000000568A000-memory.dmp
memory/2716-137-0x0000000005640000-0x0000000005BE4000-memory.dmp
memory/2716-136-0x00000000057E0000-0x0000000005836000-memory.dmp
memory/2716-135-0x0000000074D00000-0x00000000754B0000-memory.dmp
memory/2716-132-0x0000000005BF0000-0x0000000006194000-memory.dmp
memory/2716-131-0x00000000055A0000-0x000000000563C000-memory.dmp
memory/2972-147-0x00000000008C0000-0x00000000008C7000-memory.dmp
memory/2972-148-0x0000000000480000-0x00000000004A9000-memory.dmp
memory/2972-149-0x0000000000D70000-0x00000000010BA000-memory.dmp
memory/2972-150-0x0000000000A10000-0x0000000000AA0000-memory.dmp