940bddbc6ef19b211f2022d61bf4d006969da11f9fe0beba98586e554dfcc741

General

Target

R5X2SH.exe
Size

229KB
MD5

2316091f02153ac20dff768513aae1a4
SHA1

6b7b1017b9313ab87fccf4ea08a427c1499b89dc
SHA256

940bddbc6ef19b211f2022d61bf4d006969da11f9fe0beba98586e554dfcc741
SHA512

ff039365b85686a4b191a81d3f0e3b8ced76a7b3161d28906854d86cf2452c96dd2e476ef29f3eae29ea22efce4f0d4484b82a32bfe8dde0e0fec91d630b1448
SSDEEP

6144:oNxyvPouZtK58suC/004GKXkq4RUs3fY:oNxyXNtK58su3Z0RPY

Score

9^/10

discovery persistence ransomware

Malware Config

Signatures

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

File Deletion
T1107

Inhibit System Recovery
T1490
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

R5X2SH.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation R5X2SH.exe
Modifies file permissions 1 TTPs 1 IoCs
discovery

File Permissions Modification
T1222

Processes:

icacls.exe

pid process

4156 icacls.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	R5X2SH.exe

pid	process
4156	icacls.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

R5X2SH.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows\CurrentVersion\Run	R5X2SH.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSFEEditor = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\R5X2SH.exe\" e"	R5X2SH.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

R5X2SH.exe

description ioc process

File opened for modification \??\E:\$RECYCLE.BIN\S-1-5-21-144354903-2550862337-1367551827-1000\desktop.ini R5X2SH.exe
Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Processes:

R5X2SH.exe

description ioc process

File opened (read-only) \??\D: R5X2SH.exe
File opened (read-only) \??\E: R5X2SH.exe
Launches sc.exe 1 IoCs
Sc.exe is a Windows utlilty to control services on the system.

Processes:

sc.exe

pid process

4112 sc.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1688 timeout.exe
Runs net.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exeR5X2SH.exe

pid process

768 powershell.exe
768 powershell.exe
1712 R5X2SH.exe
1712 R5X2SH.exe

description	ioc	process
File opened for modification	\??\E:\$RECYCLE.BIN\S-1-5-21-144354903-2550862337-1367551827-1000\desktop.ini	R5X2SH.exe

description	ioc	process
File opened (read-only)	\??\D:	R5X2SH.exe
File opened (read-only)	\??\E:	R5X2SH.exe

pid	process
4112	sc.exe

pid	process
1688	timeout.exe

pid	process
768	powershell.exe
768	powershell.exe
1712	R5X2SH.exe
1712	R5X2SH.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

Processes:

wmic.exevssvc.exepowershell.exevssvc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2888	wmic.exe
Token: SeSecurityPrivilege	2888	wmic.exe
Token: SeTakeOwnershipPrivilege	2888	wmic.exe
Token: SeLoadDriverPrivilege	2888	wmic.exe
Token: SeSystemProfilePrivilege	2888	wmic.exe
Token: SeSystemtimePrivilege	2888	wmic.exe
Token: SeProfSingleProcessPrivilege	2888	wmic.exe
Token: SeIncBasePriorityPrivilege	2888	wmic.exe
Token: SeCreatePagefilePrivilege	2888	wmic.exe
Token: SeBackupPrivilege	2888	wmic.exe
Token: SeRestorePrivilege	2888	wmic.exe
Token: SeShutdownPrivilege	2888	wmic.exe
Token: SeDebugPrivilege	2888	wmic.exe
Token: SeSystemEnvironmentPrivilege	2888	wmic.exe
Token: SeRemoteShutdownPrivilege	2888	wmic.exe
Token: SeUndockPrivilege	2888	wmic.exe
Token: SeManageVolumePrivilege	2888	wmic.exe
Token: 33	2888	wmic.exe
Token: 34	2888	wmic.exe
Token: 35	2888	wmic.exe
Token: 36	2888	wmic.exe
Token: SeIncreaseQuotaPrivilege	2888	wmic.exe
Token: SeSecurityPrivilege	2888	wmic.exe
Token: SeTakeOwnershipPrivilege	2888	wmic.exe
Token: SeLoadDriverPrivilege	2888	wmic.exe
Token: SeSystemProfilePrivilege	2888	wmic.exe
Token: SeSystemtimePrivilege	2888	wmic.exe
Token: SeProfSingleProcessPrivilege	2888	wmic.exe
Token: SeIncBasePriorityPrivilege	2888	wmic.exe
Token: SeCreatePagefilePrivilege	2888	wmic.exe
Token: SeBackupPrivilege	2888	wmic.exe
Token: SeRestorePrivilege	2888	wmic.exe
Token: SeShutdownPrivilege	2888	wmic.exe
Token: SeDebugPrivilege	2888	wmic.exe
Token: SeSystemEnvironmentPrivilege	2888	wmic.exe
Token: SeRemoteShutdownPrivilege	2888	wmic.exe
Token: SeUndockPrivilege	2888	wmic.exe
Token: SeManageVolumePrivilege	2888	wmic.exe
Token: 33	2888	wmic.exe
Token: 34	2888	wmic.exe
Token: 35	2888	wmic.exe
Token: 36	2888	wmic.exe
Token: SeBackupPrivilege	4348	vssvc.exe
Token: SeRestorePrivilege	4348	vssvc.exe
Token: SeAuditPrivilege	4348	vssvc.exe
Token: SeDebugPrivilege	768	powershell.exe
Token: SeBackupPrivilege	3840	vssvc.exe
Token: SeRestorePrivilege	3840	vssvc.exe
Token: SeAuditPrivilege	3840	vssvc.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

R5X2SH.exenet.execmd.exe

description	pid	process	target process
PID 1712 wrote to memory of 2204	1712	R5X2SH.exe	net.exe
PID 1712 wrote to memory of 2204	1712	R5X2SH.exe	net.exe
PID 1712 wrote to memory of 2204	1712	R5X2SH.exe	net.exe
PID 2204 wrote to memory of 1812	2204	net.exe	net1.exe
PID 2204 wrote to memory of 1812	2204	net.exe	net1.exe
PID 2204 wrote to memory of 1812	2204	net.exe	net1.exe
PID 1712 wrote to memory of 4112	1712	R5X2SH.exe	sc.exe
PID 1712 wrote to memory of 4112	1712	R5X2SH.exe	sc.exe
PID 1712 wrote to memory of 4112	1712	R5X2SH.exe	sc.exe
PID 1712 wrote to memory of 2888	1712	R5X2SH.exe	wmic.exe
PID 1712 wrote to memory of 2888	1712	R5X2SH.exe	wmic.exe
PID 1712 wrote to memory of 2888	1712	R5X2SH.exe	wmic.exe
PID 1712 wrote to memory of 4156	1712	R5X2SH.exe	icacls.exe
PID 1712 wrote to memory of 4156	1712	R5X2SH.exe	icacls.exe
PID 1712 wrote to memory of 4156	1712	R5X2SH.exe	icacls.exe
PID 1712 wrote to memory of 768	1712	R5X2SH.exe	powershell.exe
PID 1712 wrote to memory of 768	1712	R5X2SH.exe	powershell.exe
PID 1712 wrote to memory of 768	1712	R5X2SH.exe	powershell.exe
PID 1712 wrote to memory of 1156	1712	R5X2SH.exe	cmd.exe
PID 1712 wrote to memory of 1156	1712	R5X2SH.exe	cmd.exe
PID 1712 wrote to memory of 1156	1712	R5X2SH.exe	cmd.exe
PID 1156 wrote to memory of 1688	1156	cmd.exe	timeout.exe
PID 1156 wrote to memory of 1688	1156	cmd.exe	timeout.exe
PID 1156 wrote to memory of 1688	1156	cmd.exe	timeout.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

R5X2SH.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1"	R5X2SH.exe

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\R5X2SH.exe
"C:\Users\Admin\AppData\Local\Temp\R5X2SH.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops desktop.ini file(s)
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1712

C:\Windows\SysWOW64\net.exe
net stop VSS & sc config VSS start= disabled
2⤵
- Suspicious use of WriteProcessMemory
PID:2204

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 stop VSS & sc config VSS start= disabled
3⤵
PID:1812

C:\Windows\SysWOW64\sc.exe
sc config VSS start= Demand & net start VSS
2⤵
- Launches sc.exe
PID:4112

C:\Windows\SysWOW64\Wbem\wmic.exe
wmic.exe SHADOWCOPY delete /nointeractive
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2888

C:\Windows\SysWOW64\icacls.exe
icacls.exe "{A-Z}:" /grant {Username}:F /T /C /Q
2⤵
- Modifies file permissions
PID:4156

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -command "Get-WmiObject Win32_Shadowcopy | ForEach-Object {$_.Delete();}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:768

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c timeout 1 && del "C:\Users\Admin\AppData\Local\Temp\R5X2SH.exe" >> NUL
2⤵
- Suspicious use of WriteProcessMemory
PID:1156

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:1688

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4348

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3840

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Deletion

1

T1107

File Permissions Modification

1

T1222

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

1

T1490

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_h2ysj1re.h0v.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/768-138-0x00000000025F0000-0x0000000002626000-memory.dmp

Filesize
216KB

Download
memory/768-156-0x00000000063A0000-0x00000000063BA000-memory.dmp

Filesize
104KB

Download
memory/768-142-0x0000000005070000-0x00000000050D6000-memory.dmp

Filesize
408KB

Download
memory/768-159-0x0000000004B40000-0x0000000004B50000-memory.dmp

Filesize
64KB

Download
memory/768-158-0x00000000074E0000-0x0000000007A84000-memory.dmp

Filesize
5.6MB

Download
memory/768-139-0x0000000005180000-0x00000000057A8000-memory.dmp

Filesize
6.2MB

Download
memory/768-140-0x0000000004EF0000-0x0000000004F12000-memory.dmp

Filesize
136KB

Download
memory/768-141-0x0000000004F90000-0x0000000004FF6000-memory.dmp

Filesize
408KB

Download
memory/768-155-0x0000000006E90000-0x0000000006F26000-memory.dmp

Filesize
600KB

Download
memory/768-157-0x00000000063F0000-0x0000000006412000-memory.dmp

Filesize
136KB

Download
memory/768-153-0x0000000004B40000-0x0000000004B50000-memory.dmp

Filesize
64KB

Download
memory/768-152-0x0000000004B40000-0x0000000004B50000-memory.dmp

Filesize
64KB

Download
memory/768-154-0x0000000005EB0000-0x0000000005ECE000-memory.dmp

Filesize
120KB

Download
memory/1712-134-0x0000000000ED0000-0x0000000000F5F000-memory.dmp

Filesize
572KB

Download
memory/1712-166-0x0000000000ED0000-0x0000000000F5F000-memory.dmp

Filesize
572KB

Download
memory/1712-136-0x0000000000ED0000-0x0000000000F5F000-memory.dmp

Filesize
572KB

Download
memory/1712-133-0x0000000000ED0000-0x0000000000F5F000-memory.dmp

Filesize
572KB

Download
memory/1712-137-0x0000000000ED0000-0x0000000000F5F000-memory.dmp

Filesize
572KB

Download
memory/1712-135-0x0000000000ED0000-0x0000000000F5F000-memory.dmp

Filesize
572KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads