Analysis
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max time kernel
150s -
max time network
130s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system -
submitted
26-07-2022 21:55
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20220718-en
General
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Target
tmp.exe
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Size
24KB
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MD5
1706365b5058cbaa560b23dc297f9585
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SHA1
9933c13c7db40fb5ddce9013c42496e66d7a1b5e
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SHA256
bf081d3cd1264716c4522f06c6e0294eaa9834c8a06f11d501780d065d7c0135
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SHA512
09821d8f4a2eb557d581d107e7e99cdec7738cb2227ebace1d7e9b350496117300cf47a640fc30796b1a80c59ff73f2a6adaa969ab28ede069458fdd877da665
Malware Config
Extracted
formbook
4.1
s4s9
qianyuandianshang.com
bernardklein.com
slhomeservices.com
findasaas.com
janellelancaster.xyz
umkpro.site
nr6949.online
mersquare.club
lanariproperties.com
3rdeyefocused.com
giftexpress8260.xyz
hilleleven.xyz
beajod.com
kosazs.online
ishare.team
mb314.com
xjjinxingda.com
ayekooprojectamazing.com
ballsybanter.com
todayshoppingbd.com
recomdietvl.store
zakladmalarstwa.com
bj-ours.com
hubwealth.com
watchmyreview.com
sallyliddicoat.com
eventiliveitalia.com
worldchannelconference.com
suciptahadi.online
ksht5566.com
topfastcashsystemwebshop.com
eyeiieyetv.com
thewarchannel.net
valorousgamers.com
vip01ytre.xyz
szec.tech
233365.xyz
specialroute.net
eugenachase.com
pikoulas.com
shorter-658423.site
win8856.com
burleyqpersianscom.com
sidetrackedmusic.com
chungketvinhomesspotlight.com
qiange.site
motconsultant.com
yottatic.com
usaprostatecenter.com
putovanjazasve.com
kozykornerpizza.com
hainpore.com
52appmj.com
albanyskylights.com
keropy.xyz
infosecrety.xyz
ethlogo.com
labohack.com
veridiumid.xyz
gaylebong.com
rsmegastore.com
janschlesinger.com
cshong-ya.com
shopevix.com
preciousssllc.net
Signatures
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Formbook payload 4 IoCs
Processes:
resource yara_rule behavioral2/memory/4596-141-0x0000000000400000-0x000000000042F000-memory.dmp formbook behavioral2/memory/4596-147-0x0000000000400000-0x000000000042F000-memory.dmp formbook behavioral2/memory/4568-150-0x00000000004A0000-0x00000000004CF000-memory.dmp formbook behavioral2/memory/4568-154-0x00000000004A0000-0x00000000004CF000-memory.dmp formbook -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
tmp.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation tmp.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
tmp.exeMSBuild.exeexplorer.exedescription pid process target process PID 4428 set thread context of 4596 4428 tmp.exe MSBuild.exe PID 4596 set thread context of 2648 4596 MSBuild.exe Explorer.EXE PID 4568 set thread context of 2648 4568 explorer.exe Explorer.EXE -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 62 IoCs
Processes:
powershell.exetmp.exeMSBuild.exeexplorer.exepid process 4176 powershell.exe 4176 powershell.exe 4428 tmp.exe 4428 tmp.exe 4596 MSBuild.exe 4596 MSBuild.exe 4596 MSBuild.exe 4596 MSBuild.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe 4568 explorer.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
Explorer.EXEpid process 2648 Explorer.EXE -
Suspicious behavior: MapViewOfSection 5 IoCs
Processes:
MSBuild.exeexplorer.exepid process 4596 MSBuild.exe 4596 MSBuild.exe 4596 MSBuild.exe 4568 explorer.exe 4568 explorer.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
tmp.exepowershell.exeMSBuild.exeexplorer.exedescription pid process Token: SeDebugPrivilege 4428 tmp.exe Token: SeDebugPrivilege 4176 powershell.exe Token: SeDebugPrivilege 4596 MSBuild.exe Token: SeDebugPrivilege 4568 explorer.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
tmp.exeExplorer.EXEexplorer.exedescription pid process target process PID 4428 wrote to memory of 4176 4428 tmp.exe powershell.exe PID 4428 wrote to memory of 4176 4428 tmp.exe powershell.exe PID 4428 wrote to memory of 4176 4428 tmp.exe powershell.exe PID 4428 wrote to memory of 4596 4428 tmp.exe MSBuild.exe PID 4428 wrote to memory of 4596 4428 tmp.exe MSBuild.exe PID 4428 wrote to memory of 4596 4428 tmp.exe MSBuild.exe PID 4428 wrote to memory of 4596 4428 tmp.exe MSBuild.exe PID 4428 wrote to memory of 4596 4428 tmp.exe MSBuild.exe PID 4428 wrote to memory of 4596 4428 tmp.exe MSBuild.exe PID 2648 wrote to memory of 4568 2648 Explorer.EXE explorer.exe PID 2648 wrote to memory of 4568 2648 Explorer.EXE explorer.exe PID 2648 wrote to memory of 4568 2648 Explorer.EXE explorer.exe PID 4568 wrote to memory of 816 4568 explorer.exe cmd.exe PID 4568 wrote to memory of 816 4568 explorer.exe cmd.exe PID 4568 wrote to memory of 816 4568 explorer.exe cmd.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"2⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgA=3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\SysWOW64\explorer.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"3⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/816-148-0x0000000000000000-mapping.dmp
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memory/2648-145-0x0000000002850000-0x000000000292E000-memory.dmpFilesize
888KB
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memory/2648-153-0x00000000029D0000-0x0000000002AC9000-memory.dmpFilesize
996KB
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memory/2648-155-0x00000000029D0000-0x0000000002AC9000-memory.dmpFilesize
996KB
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memory/4176-135-0x0000000004F10000-0x0000000004F76000-memory.dmpFilesize
408KB
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memory/4176-136-0x00000000056C0000-0x0000000005726000-memory.dmpFilesize
408KB
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memory/4176-134-0x0000000005020000-0x0000000005648000-memory.dmpFilesize
6.2MB
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memory/4176-137-0x0000000005CB0000-0x0000000005CCE000-memory.dmpFilesize
120KB
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memory/4176-138-0x0000000007510000-0x0000000007B8A000-memory.dmpFilesize
6.5MB
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memory/4176-139-0x00000000061A0000-0x00000000061BA000-memory.dmpFilesize
104KB
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memory/4176-133-0x00000000026E0000-0x0000000002716000-memory.dmpFilesize
216KB
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memory/4176-132-0x0000000000000000-mapping.dmp
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memory/4428-130-0x00000000002C0000-0x00000000002CC000-memory.dmpFilesize
48KB
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memory/4428-131-0x0000000005910000-0x0000000005932000-memory.dmpFilesize
136KB
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memory/4568-150-0x00000000004A0000-0x00000000004CF000-memory.dmpFilesize
188KB
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memory/4568-146-0x0000000000000000-mapping.dmp
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memory/4568-149-0x00000000005A0000-0x00000000009D3000-memory.dmpFilesize
4.2MB
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memory/4568-151-0x0000000002A60000-0x0000000002DAA000-memory.dmpFilesize
3.3MB
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memory/4568-152-0x00000000028B0000-0x0000000002943000-memory.dmpFilesize
588KB
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memory/4568-154-0x00000000004A0000-0x00000000004CF000-memory.dmpFilesize
188KB
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memory/4596-147-0x0000000000400000-0x000000000042F000-memory.dmpFilesize
188KB
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memory/4596-144-0x00000000010F0000-0x0000000001104000-memory.dmpFilesize
80KB
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memory/4596-143-0x00000000011E0000-0x000000000152A000-memory.dmpFilesize
3.3MB
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memory/4596-141-0x0000000000400000-0x000000000042F000-memory.dmpFilesize
188KB
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memory/4596-140-0x0000000000000000-mapping.dmp