6851b72e0bfaf608294bcac6ffef07e5e6591aee8b94ce9afad46b6e6cc32a59

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27-10-2021 14:44

211027-r4madafbg6 10

27-10-2021 14:28

211027-rs7f6sfah4 10

Analysis

max time kernel
111s
max time network
137s
submitted
01-01-1970 00:00

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General

Target

setup_installer/Wed09cfb2f9758281d8.exe

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 6 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
4312	4040	WerFault.exe	Wed09cfb2f9758281d8.exe
1704	4040	WerFault.exe	Wed09cfb2f9758281d8.exe
4580	4040	WerFault.exe	Wed09cfb2f9758281d8.exe
4460	4040	WerFault.exe	Wed09cfb2f9758281d8.exe
4364	4040	WerFault.exe	Wed09cfb2f9758281d8.exe
3200	4040	WerFault.exe	Wed09cfb2f9758281d8.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

820 taskkill.exe

pid	process
820	taskkill.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	process
4312	WerFault.exe
4312	WerFault.exe
4312	WerFault.exe
4312	WerFault.exe
4312	WerFault.exe
4312	WerFault.exe
4312	WerFault.exe
4312	WerFault.exe
4312	WerFault.exe
4312	WerFault.exe
4312	WerFault.exe
4312	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
1704	WerFault.exe
4580	WerFault.exe
4580	WerFault.exe
4580	WerFault.exe
4580	WerFault.exe
4580	WerFault.exe
4580	WerFault.exe
4580	WerFault.exe
4580	WerFault.exe
4580	WerFault.exe
4580	WerFault.exe
4580	WerFault.exe
4580	WerFault.exe
4460	WerFault.exe
4460	WerFault.exe
4460	WerFault.exe
4460	WerFault.exe
4460	WerFault.exe
4460	WerFault.exe
4460	WerFault.exe
4460	WerFault.exe
4460	WerFault.exe
4460	WerFault.exe
4460	WerFault.exe
4460	WerFault.exe
4364	WerFault.exe
4364	WerFault.exe
4364	WerFault.exe
4364	WerFault.exe
4364	WerFault.exe
4364	WerFault.exe
4364	WerFault.exe
4364	WerFault.exe
4364	WerFault.exe
4364	WerFault.exe
4364	WerFault.exe
4364	WerFault.exe
3200	WerFault.exe
3200	WerFault.exe
3200	WerFault.exe
3200	WerFault.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exetaskkill.exe

description	pid	process
Token: SeRestorePrivilege	4312	WerFault.exe
Token: SeBackupPrivilege	4312	WerFault.exe
Token: SeDebugPrivilege	4312	WerFault.exe
Token: SeDebugPrivilege	1704	WerFault.exe
Token: SeDebugPrivilege	4580	WerFault.exe
Token: SeDebugPrivilege	4460	WerFault.exe
Token: SeDebugPrivilege	4364	WerFault.exe
Token: SeDebugPrivilege	3200	WerFault.exe
Token: SeDebugPrivilege	820	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Wed09cfb2f9758281d8.execmd.exe

description	pid	process	target process
PID 4040 wrote to memory of 508	4040	Wed09cfb2f9758281d8.exe	cmd.exe
PID 4040 wrote to memory of 508	4040	Wed09cfb2f9758281d8.exe	cmd.exe
PID 4040 wrote to memory of 508	4040	Wed09cfb2f9758281d8.exe	cmd.exe
PID 508 wrote to memory of 820	508	cmd.exe	taskkill.exe
PID 508 wrote to memory of 820	508	cmd.exe	taskkill.exe
PID 508 wrote to memory of 820	508	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\setup_installer\Wed09cfb2f9758281d8.exe
"C:\Users\Admin\AppData\Local\Temp\setup_installer\Wed09cfb2f9758281d8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4040

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 748
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 768
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1704

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 840
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 892
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4460

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 956
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 996
2⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3200

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c taskkill /im "Wed09cfb2f9758281d8.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\setup_installer\Wed09cfb2f9758281d8.exe" & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:508

C:\Windows\SysWOW64\taskkill.exe
taskkill /im "Wed09cfb2f9758281d8.exe" /f
3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:820

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/508-121-0x0000000000000000-mapping.dmp

Download
memory/820-122-0x0000000000000000-mapping.dmp

Download
memory/4040-119-0x0000000000670000-0x00000000007BA000-memory.dmp

Filesize
1.3MB

Download
memory/4040-120-0x0000000000400000-0x000000000058E000-memory.dmp

Filesize
1.6MB

Download