207804e5663f805c492bb78bf404a16d2db41416120026afb065cf991a48d906 | Triage

Analysis

max time kernel
74s
max time network
45s
resource
win10v191014

Sharing

General

Target

207804e5663f805c492bb78bf404a16d2db41416120026afb065cf991a48d906
Sample

191025-f6ttaqn6da
SHA256

207804e5663f805c492bb78bf404a16d2db41416120026afb065cf991a48d906

Score

N/A

Malware Config

Signatures

Accessing to Master Boot Record (MBR) 1 TTPs 1 IoCs

ransomware bootkit

description	ioc	pid	Process
File opened for modification	\??\PhysicalDrive0	5040	207804e5663f805c492bb78bf404a16d2db41416120026afb065cf991a48d906.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 4304	5040	207804e5663f805c492bb78bf404a16d2db41416120026afb065cf991a48d906.exe	74
PID 5040 wrote to memory of 3016	5040	207804e5663f805c492bb78bf404a16d2db41416120026afb065cf991a48d906.exe	73
PID 3016 wrote to memory of 356	3016	cmd.exe	77
PID 3664 wrote to memory of 3800	3664	SppExtComObj.exe	81
PID 5040 wrote to memory of 4668	5040	207804e5663f805c492bb78bf404a16d2db41416120026afb065cf991a48d906.exe	83

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5040	207804e5663f805c492bb78bf404a16d2db41416120026afb065cf991a48d906.exe

Drops file in system dir 1 IoCs

description	ioc	pid	Process
File opened for modification	C:\Windows\Globalization\ICU\icudtl.dat	4668	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	5040	207804e5663f805c492bb78bf404a16d2db41416120026afb065cf991a48d906.exe

C:\Users\Admin\AppData\Local\Temp\207804e5663f805c492bb78bf404a16d2db41416120026afb065cf991a48d906.exe
"C:\Users\Admin\AppData\Local\Temp\207804e5663f805c492bb78bf404a16d2db41416120026afb065cf991a48d906.exe"
1⤵
- Accessing to Master Boot Record (MBR)
- Suspicious use of WriteProcessMemory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:5040

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C schtasks /create /tn "WindowsUpdatev1" /tr "C:\Users\Admin\AppData\Local\Temp\207804e5663f805c492bb78bf404a16d2db41416120026afb065cf991a48d906.exe" /sc onlogon
1⤵
- Suspicious use of WriteProcessMemory
PID:3016

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
1⤵
PID:4304

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /tn "WindowsUpdatev1" /tr "C:\Users\Admin\AppData\Local\Temp\207804e5663f805c492bb78bf404a16d2db41416120026afb065cf991a48d906.exe" /sc onlogon
1⤵
PID:356

C:\Windows\system32\SppExtComObj.exe
C:\Windows\system32\SppExtComObj.exe -Embedding
1⤵
- Suspicious use of WriteProcessMemory
PID:3664

C:\Windows\System32\SLUI.exe
"C:\Windows\System32\SLUI.exe" RuleId=eeba1977-569e-4571-b639-7623d8bfecc0;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=2de67392-b7a7-462a-b1ca-108dd189f588;NotificationInterval=1440;Trigger=TimerEvent
1⤵
PID:3800

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C del %systemroot% /F /S /Q
1⤵
- Drops file in system dir
PID:4668

Network

MITRE ATT&CK Additional techniques

T1067

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