875ddb6faf9740e2a28b6a7b31e5aeab700d824b6bfb5991c092520265c30ff2

Analysis

max time kernel
109s
max time network
131s
platform
windows10_x64
resource
win10v200430
submitted
26/06/2020, 12:38

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General

Target

5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.exe
Size

1.0MB
MD5

572fea5f025df78f2d316216fbeee52e
SHA1

91b2bf44b1f9282c09f07f16631deaa3ad9d956d
SHA256

5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367
SHA512

eb238272227c5825477ff1e37dc4f7e467665049d4db5649fff59c39d7745e88b06234d6d1218c05c802e33e21577f9d4a533cb9e23ebe6fb09654f97759c187

Score

9^/10

persistence discovery exploit ransomware

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2144	Product:bin
1492	Product.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\Product.exe	Product:bin
File opened for modification	C:\Windows\SysWOW64\Product.exe	attrib.exe

Modifies file permissions 1 TTPs 2 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3920	takeown.exe
3300	icacls.exe

Possible privilege escalation attempt 2 IoCs

exploit

pid	Process
3920	takeown.exe
3300	icacls.exe

Views/modifies file attributes 1 TTPs 3 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
1692	attrib.exe
1804	attrib.exe
2292	attrib.exe

NTFS ADS 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Product:bin	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.exe

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2144	2112	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.exe	68
PID 2112 wrote to memory of 2144	2112	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.exe	68
PID 2112 wrote to memory of 2144	2112	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.exe	68
PID 2144 wrote to memory of 2644	2144	Product:bin	69
PID 2144 wrote to memory of 2644	2144	Product:bin	69
PID 2144 wrote to memory of 3920	2144	Product:bin	73
PID 2144 wrote to memory of 3920	2144	Product:bin	73
PID 2144 wrote to memory of 3920	2144	Product:bin	73
PID 2144 wrote to memory of 3300	2144	Product:bin	75
PID 2144 wrote to memory of 3300	2144	Product:bin	75
PID 2144 wrote to memory of 3300	2144	Product:bin	75
PID 1492 wrote to memory of 3696	1492	Product.exe	79
PID 1492 wrote to memory of 3696	1492	Product.exe	79
PID 1492 wrote to memory of 3696	1492	Product.exe	79
PID 3696 wrote to memory of 500	3696	cmd.exe	81
PID 3696 wrote to memory of 500	3696	cmd.exe	81
PID 3696 wrote to memory of 500	3696	cmd.exe	81
PID 2144 wrote to memory of 844	2144	Product:bin	82
PID 2144 wrote to memory of 844	2144	Product:bin	82
PID 2144 wrote to memory of 844	2144	Product:bin	82
PID 2112 wrote to memory of 796	2112	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.exe	84
PID 2112 wrote to memory of 796	2112	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.exe	84
PID 2112 wrote to memory of 796	2112	5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.exe	84
PID 844 wrote to memory of 800	844	cmd.exe	86
PID 844 wrote to memory of 800	844	cmd.exe	86
PID 844 wrote to memory of 800	844	cmd.exe	86
PID 796 wrote to memory of 4040	796	cmd.exe	87
PID 796 wrote to memory of 4040	796	cmd.exe	87
PID 796 wrote to memory of 4040	796	cmd.exe	87
PID 3696 wrote to memory of 1692	3696	cmd.exe	89
PID 3696 wrote to memory of 1692	3696	cmd.exe	89
PID 3696 wrote to memory of 1692	3696	cmd.exe	89
PID 844 wrote to memory of 1804	844	cmd.exe	90
PID 844 wrote to memory of 1804	844	cmd.exe	90
PID 844 wrote to memory of 1804	844	cmd.exe	90
PID 796 wrote to memory of 2292	796	cmd.exe	91
PID 796 wrote to memory of 2292	796	cmd.exe	91
PID 796 wrote to memory of 2292	796	cmd.exe	91

Modifies service 2 TTPs 5 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

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

Interacts with shadow copies 2 TTPs 1 IoCs

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

ransomware

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
2644	vssadmin.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	1008	vssvc.exe
Token: SeRestorePrivilege	1008	vssvc.exe
Token: SeAuditPrivilege	1008	vssvc.exe

C:\Users\Admin\AppData\Local\Temp\5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.exe
"C:\Users\Admin\AppData\Local\Temp\5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.exe"
1⤵
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Users\Admin\AppData\Roaming\Product:bin
  C:\Users\Admin\AppData\Roaming\Product:bin -r
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2144
- - C:\Windows\system32\vssadmin.exe
    C:\Windows\system32\vssadmin.exe Delete Shadows /All /Quiet
    3⤵
    - Interacts with shadow copies
    PID:2644
- - C:\Windows\SysWOW64\takeown.exe
    C:\Windows\system32\takeown.exe /F C:\Windows\system32\Product.exe
    3⤵
    - Modifies file permissions
    - Possible privilege escalation attempt
    PID:3920
- - C:\Windows\SysWOW64\icacls.exe
    C:\Windows\system32\icacls.exe C:\Windows\system32\Product.exe /reset
    3⤵
    - Modifies file permissions
    - Possible privilege escalation attempt
    PID:3300
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Roaming\Product" & del "C:\Users\Admin\AppData\Roaming\Product"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:844
  - - C:\Windows\SysWOW64\choice.exe
      choice /t 10 /d y
      4⤵
      PID:800
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -h "C:\Users\Admin\AppData\Roaming\Product"
      4⤵
      Views/modifies file attributes
      PID:1804
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Users\Admin\AppData\Local\Temp\5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.exe" & del "C:\Users\Admin\AppData\Local\Temp\5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:796
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:4040
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Users\Admin\AppData\Local\Temp\5cd04805f9753ca08b82e88c27bf5426d1d356bb26b281885573051048911367.exe"
    3⤵
    - Views/modifies file attributes
    PID:2292

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:1008

C:\Windows\SysWOW64\Product.exe
C:\Windows\SysWOW64\Product.exe -s
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1492
- C:\Windows\SysWOW64\cmd.exe
  cmd /c choice /t 10 /d y & attrib -h "C:\Windows\SysWOW64\Product.exe" & del "C:\Windows\SysWOW64\Product.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3696
- - C:\Windows\SysWOW64\choice.exe
    choice /t 10 /d y
    3⤵
    PID:500
- - C:\Windows\SysWOW64\attrib.exe
    attrib -h "C:\Windows\SysWOW64\Product.exe"
    3⤵
    - Drops file in System32 directory
    - Views/modifies file attributes
    PID:1692

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

File Deletion

T1107

File and Directory Permissions Modification

T1222

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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