bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8

backendhorse2
featuresanalog
max_time_kernel128875
max_time_network39545
platformwindows10_x64
resourcewin10v200430
submitted25-06-2020 05:30

Report
Files
Registry
Network
Processes
Mutex
Misc

Target

bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe

Filesize

60KB

Completed

25-06-2020 05:32

Score

9 ^/10

MD5

0ed2ca539a01cdb86c88a9a1604b2005

SHA1

4fed7eae00bfa21938e49f33b7c6794fd7d0750c

SHA256

bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8

Defense Evasion

Impact

Persistence

Modifies service

vssvc.exe

TTPs

Modify RegistryModify Existing Service

Reported IOCs

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5}	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer	vssvc.exe

Views/modifies file attributes
attrib.exeattrib.exeattrib.exe

Tags

evasion

TTPs

Hidden Files and Directories

Reported IOCs

pid process

2188 attrib.exe
260 attrib.exe
280 attrib.exe
Suspicious use of AdjustPrivilegeToken
vssvc.exe

Reported IOCs

description pid process

Token: SeBackupPrivilege 1516 vssvc.exe
Token: SeRestorePrivilege 1516 vssvc.exe
Token: SeAuditPrivilege 1516 vssvc.exe
Executes dropped EXE
Resources:binResources.exe

Reported IOCs

pid process

1548 Resources:bin
3812 Resources.exe

pid	process
2188	attrib.exe
260	attrib.exe
280	attrib.exe

description	pid	process
Token: SeBackupPrivilege	1516	vssvc.exe
Token: SeRestorePrivilege	1516	vssvc.exe
Token: SeAuditPrivilege	1516	vssvc.exe

pid	process
1548	Resources:bin
3812	Resources.exe

Drops file in System32 directory

Resources:binattrib.exe

Reported IOCs

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\Resources.exe	Resources:bin
File opened for modification	C:\Windows\SysWOW64\Resources.exe	attrib.exe

Modifies file permissions
takeown.exeicacls.exe

Tags

discovery

TTPs

File Permissions Modification

Reported IOCs

pid process

2604 takeown.exe
2824 icacls.exe
Possible privilege escalation attempt
takeown.exeicacls.exe

Tags

exploit

Reported IOCs

pid process

2604 takeown.exe
2824 icacls.exe

pid	process
2604	takeown.exe
2824	icacls.exe

pid	process
2604	takeown.exe
2824	icacls.exe

NTFS ADS

bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe

Reported IOCs

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Resources:bin	bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe

Deletes shadow copies

Description

Ransomware often targets backup files to inhibit system recovery.

Tags

ransomware

TTPs

File DeletionInhibit System Recovery
Interacts with shadow copies
vssadmin.exe

Description

Shadow copies are often targeted by ransomware to inhibit system recovery.

Tags

ransomware

TTPs

File DeletionInhibit System Recovery

Reported IOCs

pid process

1664 vssadmin.exe

pid	process
1664	vssadmin.exe

Suspicious use of WriteProcessMemory

bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exeResources:binResources.execmd.execmd.execmd.exe

Reported IOCs

description	pid	process	target process
PID 1484 wrote to memory of 1548	1484	bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe	Resources:bin
PID 1484 wrote to memory of 1548	1484	bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe	Resources:bin
PID 1484 wrote to memory of 1548	1484	bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe	Resources:bin
PID 1548 wrote to memory of 1664	1548	Resources:bin	vssadmin.exe
PID 1548 wrote to memory of 1664	1548	Resources:bin	vssadmin.exe
PID 1548 wrote to memory of 2604	1548	Resources:bin	takeown.exe
PID 1548 wrote to memory of 2604	1548	Resources:bin	takeown.exe
PID 1548 wrote to memory of 2604	1548	Resources:bin	takeown.exe
PID 1548 wrote to memory of 2824	1548	Resources:bin	icacls.exe
PID 1548 wrote to memory of 2824	1548	Resources:bin	icacls.exe
PID 1548 wrote to memory of 2824	1548	Resources:bin	icacls.exe
PID 3812 wrote to memory of 3980	3812	Resources.exe	cmd.exe
PID 3812 wrote to memory of 3980	3812	Resources.exe	cmd.exe
PID 3812 wrote to memory of 3980	3812	Resources.exe	cmd.exe
PID 3980 wrote to memory of 984	3980	cmd.exe	choice.exe
PID 3980 wrote to memory of 984	3980	cmd.exe	choice.exe
PID 3980 wrote to memory of 984	3980	cmd.exe	choice.exe
PID 1548 wrote to memory of 1672	1548	Resources:bin	cmd.exe
PID 1548 wrote to memory of 1672	1548	Resources:bin	cmd.exe
PID 1548 wrote to memory of 1672	1548	Resources:bin	cmd.exe
PID 1484 wrote to memory of 3484	1484	bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe	cmd.exe
PID 1484 wrote to memory of 3484	1484	bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe	cmd.exe
PID 1484 wrote to memory of 3484	1484	bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe	cmd.exe
PID 1672 wrote to memory of 3776	1672	cmd.exe	choice.exe
PID 1672 wrote to memory of 3776	1672	cmd.exe	choice.exe
PID 1672 wrote to memory of 3776	1672	cmd.exe	choice.exe
PID 3484 wrote to memory of 980	3484	cmd.exe	choice.exe
PID 3484 wrote to memory of 980	3484	cmd.exe	choice.exe
PID 3484 wrote to memory of 980	3484	cmd.exe	choice.exe
PID 3980 wrote to memory of 2188	3980	cmd.exe	attrib.exe
PID 3980 wrote to memory of 2188	3980	cmd.exe	attrib.exe
PID 3980 wrote to memory of 2188	3980	cmd.exe	attrib.exe
PID 1672 wrote to memory of 260	1672	cmd.exe	attrib.exe
PID 1672 wrote to memory of 260	1672	cmd.exe	attrib.exe
PID 1672 wrote to memory of 260	1672	cmd.exe	attrib.exe
PID 3484 wrote to memory of 280	3484	cmd.exe	attrib.exe
PID 3484 wrote to memory of 280	3484	cmd.exe	attrib.exe
PID 3484 wrote to memory of 280	3484	cmd.exe	attrib.exe

C:\Users\Admin\AppData\Local\Temp\bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe

"C:\Users\Admin\AppData\Local\Temp\bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe"

NTFS ADS
Suspicious use of WriteProcessMemory

PID:1484

C:\Users\Admin\AppData\Roaming\Resources:bin

C:\Users\Admin\AppData\Roaming\Resources:bin -r

Executes dropped EXE
Drops file in System32 directory
Suspicious use of WriteProcessMemory

PID:1548

C:\Windows\system32\vssadmin.exe

C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet

Interacts with shadow copies

PID:1664

C:\Windows\SysWOW64\takeown.exe

C:\Windows\system32\takeown.exe /F C:\Windows\system32\Resources.exe

Modifies file permissions
Possible privilege escalation attempt

PID:2604

C:\Windows\SysWOW64\icacls.exe

C:\Windows\system32\icacls.exe C:\Windows\system32\Resources.exe /reset

Modifies file permissions
Possible privilege escalation attempt

PID:2824

C:\Windows\SysWOW64\cmd.exe

cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Resources" & del "C:\Users\Admin\AppData\Roaming\Resources"

Suspicious use of WriteProcessMemory

PID:1672

C:\Windows\SysWOW64\choice.exe

choice /t 10 /d y

PID:3776

C:\Windows\SysWOW64\attrib.exe

attrib -h "C:\Users\Admin\AppData\Roaming\Resources"

Views/modifies file attributes

PID:260

C:\Windows\SysWOW64\cmd.exe

cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe" & del "C:\Users\Admin\AppData\Local\Temp\bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe"

Suspicious use of WriteProcessMemory

PID:3484

C:\Windows\SysWOW64\choice.exe

choice /t 10 /d y

PID:980

C:\Windows\SysWOW64\attrib.exe

attrib -h "C:\Users\Admin\AppData\Local\Temp\bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8.exe"

Views/modifies file attributes

PID:280

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

Modifies service
Suspicious use of AdjustPrivilegeToken

PID:1516

C:\Windows\SysWOW64\Resources.exe

C:\Windows\SysWOW64\Resources.exe -s

Executes dropped EXE
Suspicious use of WriteProcessMemory

PID:3812

C:\Windows\SysWOW64\cmd.exe

cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Resources.exe" & del "C:\Windows\SysWOW64\Resources.exe"

Suspicious use of WriteProcessMemory

PID:3980

C:\Windows\SysWOW64\choice.exe

choice /t 10 /d y

PID:984

C:\Windows\SysWOW64\attrib.exe

attrib -h "C:\Windows\SysWOW64\Resources.exe"

Views/modifies file attributes
Drops file in System32 directory

PID:2188

Collection

Command and Control

Credential Access

Defense Evasion

Discovery

Execution

Exfiltration

Impact

Inhibit System Recovery

Initial Access

Lateral Movement

Persistence

Modify Existing Service

Privilege Escalation

00:00 00:00

C:\Users\Admin\AppData\Roaming\Resources:bin

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C:\Users\Admin\AppData\Roaming\Resources:bin

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C:\Windows\SysWOW64\Resources.exe

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C:\Windows\SysWOW64\Resources.exe

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memory/260-15-0x0000000000000000-mapping.dmp

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memory/280-16-0x0000000000000000-mapping.dmp

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memory/980-13-0x0000000000000000-mapping.dmp

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memory/984-9-0x0000000000000000-mapping.dmp

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memory/1548-0-0x0000000000000000-mapping.dmp

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memory/1664-3-0x0000000000000000-mapping.dmp

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memory/1672-10-0x0000000000000000-mapping.dmp

Download
memory/2188-14-0x0000000000000000-mapping.dmp

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memory/2604-4-0x0000000000000000-mapping.dmp

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memory/2824-6-0x0000000000000000-mapping.dmp

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memory/3484-11-0x0000000000000000-mapping.dmp

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memory/3776-12-0x0000000000000000-mapping.dmp

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memory/3980-8-0x0000000000000000-mapping.dmp

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bcdac1a2b67e2b47f8129814dca3bcf7d55404757eb09f1c3103f57da3153ec8

Filter: none

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TTPs

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TTPs

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TTPs

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Description

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Reported IOCs

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