Analysis
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max time kernel
186s -
max time network
192s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
26-06-2022 06:09
Static task
static1
Behavioral task
behavioral1
Sample
vbc.exe
Resource
win7-20220414-en
General
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Target
vbc.exe
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Size
283KB
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MD5
3003d7f5f37555dda6aaedc46ebffb6e
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SHA1
2fc3bfb42f58a9c1c6c9383015347b9c8935d14f
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SHA256
2fad61e5630cde696d8ea57db27d521ed4ff87ae0c5e692c597171439ae6d01c
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SHA512
c9df0576f1f92639c69c79cd230ce80a4b8606791e0be99660fb119e207ff894b6c10f31fbba70699dc7e296c8e061130e5eb765e2eef521e602a8918f32e050
Malware Config
Extracted
xloader
2.6
tn61
ryliehorrall.art
mesdco.net
street-art-ink.com
sepetcin.com
stilghar.com
hawaiipooltiles.com
fuerst-von-falkennest.com
totalvirtue.com
xdk0blc0tqy6a7.life
zootowngravel.com
kreditkarten-optionde.com
6888tlbb.xyz
albertakleekai.com
travelnurseinfofinder3.life
valleyinnswat.com
secure-remove-devices.com
digitalswamy.com
www112casinova.com
medifasttrd.com
distritoxermar.com
ebwagner.com
biworker.com
0571kt.net
mjuelaw.com
buildlimitlesswealth.com
wbclips.com
session.care
museatthemill.com
pjhxsl.com
momentums6.com
electricbike.energy
accommodations.network
libroskolibris.com
sejintech.net
parkchestergardens.info
gndgame.info
arcwarp.com
aboveallonline.com
dinotacker.com
ufc188livestreamfree.com
saulomar.com
atmworldexpo.com
chooox.com
admissium.com
dacdem.com
oneruk-chandeliercleaning.com
oyster-iot.cloud
mutinybrewworks.com
yaoih.com
dmitchellpropertiesllc.com
nuoicaymosaigon.com
peacockgotv.com
nextr.xyz
bidvastil.com
shahanhan.com
goodlordy.net
banlyeojob.com
tasteatlus.com
ecotone-os.xyz
urbanartco.com
drecibo.com
davegwatkin.com
pharmiva.net
accordingtopreston.com
blizzardboy.net
Signatures
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suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
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Xloader Payload 5 IoCs
Processes:
resource yara_rule behavioral1/memory/1088-59-0x0000000000400000-0x000000000042B000-memory.dmp xloader behavioral1/memory/1088-60-0x000000000041F2C0-mapping.dmp xloader behavioral1/memory/1088-62-0x0000000000400000-0x000000000042B000-memory.dmp xloader behavioral1/memory/2020-70-0x0000000000080000-0x00000000000AB000-memory.dmp xloader behavioral1/memory/2020-74-0x0000000000080000-0x00000000000AB000-memory.dmp xloader -
Adds policy Run key to start application 2 TTPs 2 IoCs
Processes:
raserver.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run raserver.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\U2KDNFGPFNI = "C:\\Program Files (x86)\\Vsxc\\gditt_tnhq8.exe" raserver.exe -
Uses the VBS compiler for execution 1 TTPs
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Suspicious use of SetThreadContext 3 IoCs
Processes:
vbc.execvtres.exeraserver.exedescription pid process target process PID 1372 set thread context of 1088 1372 vbc.exe cvtres.exe PID 1088 set thread context of 1236 1088 cvtres.exe Explorer.EXE PID 2020 set thread context of 1236 2020 raserver.exe Explorer.EXE -
Drops file in Program Files directory 1 IoCs
Processes:
raserver.exedescription ioc process File opened for modification C:\Program Files (x86)\Vsxc\gditt_tnhq8.exe raserver.exe -
Processes:
raserver.exedescription ioc process Key created \Registry\User\S-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 raserver.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
Processes:
cvtres.exeraserver.exepid process 1088 cvtres.exe 1088 cvtres.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe -
Suspicious behavior: MapViewOfSection 7 IoCs
Processes:
cvtres.exeraserver.exepid process 1088 cvtres.exe 1088 cvtres.exe 1088 cvtres.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe 2020 raserver.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
cvtres.exeraserver.exeExplorer.EXEdescription pid process Token: SeDebugPrivilege 1088 cvtres.exe Token: SeDebugPrivilege 2020 raserver.exe Token: SeShutdownPrivilege 1236 Explorer.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
Processes:
Explorer.EXEpid process 1236 Explorer.EXE 1236 Explorer.EXE -
Suspicious use of SendNotifyMessage 2 IoCs
Processes:
Explorer.EXEpid process 1236 Explorer.EXE 1236 Explorer.EXE -
Suspicious use of WriteProcessMemory 20 IoCs
Processes:
vbc.exeExplorer.EXEraserver.exedescription pid process target process PID 1372 wrote to memory of 1088 1372 vbc.exe cvtres.exe PID 1372 wrote to memory of 1088 1372 vbc.exe cvtres.exe PID 1372 wrote to memory of 1088 1372 vbc.exe cvtres.exe PID 1372 wrote to memory of 1088 1372 vbc.exe cvtres.exe PID 1372 wrote to memory of 1088 1372 vbc.exe cvtres.exe PID 1372 wrote to memory of 1088 1372 vbc.exe cvtres.exe PID 1372 wrote to memory of 1088 1372 vbc.exe cvtres.exe PID 1236 wrote to memory of 2020 1236 Explorer.EXE raserver.exe PID 1236 wrote to memory of 2020 1236 Explorer.EXE raserver.exe PID 1236 wrote to memory of 2020 1236 Explorer.EXE raserver.exe PID 1236 wrote to memory of 2020 1236 Explorer.EXE raserver.exe PID 2020 wrote to memory of 2000 2020 raserver.exe cmd.exe PID 2020 wrote to memory of 2000 2020 raserver.exe cmd.exe PID 2020 wrote to memory of 2000 2020 raserver.exe cmd.exe PID 2020 wrote to memory of 2000 2020 raserver.exe cmd.exe PID 2020 wrote to memory of 780 2020 raserver.exe Firefox.exe PID 2020 wrote to memory of 780 2020 raserver.exe Firefox.exe PID 2020 wrote to memory of 780 2020 raserver.exe Firefox.exe PID 2020 wrote to memory of 780 2020 raserver.exe Firefox.exe PID 2020 wrote to memory of 780 2020 raserver.exe Firefox.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1236 -
C:\Users\Admin\AppData\Local\Temp\vbc.exe"C:\Users\Admin\AppData\Local\Temp\vbc.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1372 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1088 -
C:\Windows\SysWOW64\raserver.exe"C:\Windows\SysWOW64\raserver.exe"2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Windows\SysWOW64\cmd.exe/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"3⤵PID:2000
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C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵PID:780
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1088-62-0x0000000000400000-0x000000000042B000-memory.dmpFilesize
172KB
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memory/1088-57-0x0000000000400000-0x000000000042B000-memory.dmpFilesize
172KB
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memory/1088-56-0x0000000000400000-0x000000000042B000-memory.dmpFilesize
172KB
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memory/1088-59-0x0000000000400000-0x000000000042B000-memory.dmpFilesize
172KB
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memory/1088-60-0x000000000041F2C0-mapping.dmp
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memory/1088-64-0x00000000002E0000-0x00000000002F1000-memory.dmpFilesize
68KB
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memory/1088-63-0x0000000000970000-0x0000000000C73000-memory.dmpFilesize
3.0MB
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memory/1236-73-0x0000000004130000-0x0000000004213000-memory.dmpFilesize
908KB
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memory/1236-65-0x0000000006A70000-0x0000000006BD6000-memory.dmpFilesize
1.4MB
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memory/1236-75-0x0000000004130000-0x0000000004213000-memory.dmpFilesize
908KB
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memory/1372-55-0x00000000003B0000-0x00000000003E4000-memory.dmpFilesize
208KB
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memory/1372-54-0x00000000008D0000-0x000000000091C000-memory.dmpFilesize
304KB
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memory/2000-68-0x0000000000000000-mapping.dmp
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memory/2020-66-0x0000000000000000-mapping.dmp
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memory/2020-70-0x0000000000080000-0x00000000000AB000-memory.dmpFilesize
172KB
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memory/2020-71-0x0000000002070000-0x0000000002373000-memory.dmpFilesize
3.0MB
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memory/2020-72-0x00000000003C0000-0x0000000000450000-memory.dmpFilesize
576KB
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memory/2020-69-0x0000000000AC0000-0x0000000000ADC000-memory.dmpFilesize
112KB
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memory/2020-74-0x0000000000080000-0x00000000000AB000-memory.dmpFilesize
172KB
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memory/2020-67-0x00000000763E1000-0x00000000763E3000-memory.dmpFilesize
8KB