caaa4c02c3903e76f7e85c84fe59ddbcbbd0bb51e87630c501b76e688a8a3480

General

Target

encrypter_windows_x64.exe
Size

649KB
MD5

cf0d4fc268aff11360d2b7be7c2dfcf3
SHA1

d168449bccb146830e41de28b16712dd6ffd10b3
SHA256

caaa4c02c3903e76f7e85c84fe59ddbcbbd0bb51e87630c501b76e688a8a3480
SHA512

72a58dd148835a6dfee496b70c71438bea9506e50021999e8f79dc1bfa6c68b1afab4cc2450ddb6fb997fe849d57e5c11722a309bda7dd32511325cee2b45555
SSDEEP

12288:hVx8nywcAegpvFdgxaosQqehUeFhJE1JFKqhqV4zRLIxGkT:stcAegoHg1fKqhqV4J23

Score

9^/10

evasion ransomware

Malware Config

Signatures

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

File Deletion
T1070.004

Inhibit System Recovery
T1490
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
ransomware evasion

Inhibit System Recovery
T1490

Processes:

bcdedit.exebcdedit.exe

pid process

2584 bcdedit.exe
2644 bcdedit.exe
Renames multiple (322) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware
Deletes System State backups 3 TTPs 2 IoCs
Uses wbadmin.exe to inhibit system recovery.
ransomware

Command and Scripting Interpreter
T1059

File Deletion
T1070.004

Inhibit System Recovery
T1490

Processes:

wbadmin.exewbadmin.exe

pid process

1208 wbadmin.exe
2588 wbadmin.exe

pid	process
2584	bcdedit.exe
2644	bcdedit.exe

pid	process
1208	wbadmin.exe
2588	wbadmin.exe

Drops file in Windows directory 3 IoCs

Processes:

wbadmin.exe

description	ioc	process
File opened for modification	C:\Windows\Logs\WindowsBackup\Wbadmin.3.etl	wbadmin.exe
File opened for modification	C:\Windows\Logs\WindowsBackup\Wbadmin.2.etl	wbadmin.exe
File opened for modification	C:\Windows\Logs\WindowsBackup\Wbadmin.1.etl	wbadmin.exe

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

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

3008 vssadmin.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

encrypter_windows_x64.exe

pid process

2392 encrypter_windows_x64.exe
2392 encrypter_windows_x64.exe

pid	process
3008	vssadmin.exe

pid	process
2392	encrypter_windows_x64.exe
2392	encrypter_windows_x64.exe

Suspicious use of AdjustPrivilegeToken 44 IoCs

Processes:

WMIC.exeencrypter_windows_x64.exevssvc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	3044	WMIC.exe
Token: SeSecurityPrivilege	3044	WMIC.exe
Token: SeTakeOwnershipPrivilege	3044	WMIC.exe
Token: SeLoadDriverPrivilege	3044	WMIC.exe
Token: SeSystemProfilePrivilege	3044	WMIC.exe
Token: SeSystemtimePrivilege	3044	WMIC.exe
Token: SeProfSingleProcessPrivilege	3044	WMIC.exe
Token: SeIncBasePriorityPrivilege	3044	WMIC.exe
Token: SeCreatePagefilePrivilege	3044	WMIC.exe
Token: SeBackupPrivilege	3044	WMIC.exe
Token: SeRestorePrivilege	3044	WMIC.exe
Token: SeShutdownPrivilege	3044	WMIC.exe
Token: SeDebugPrivilege	3044	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3044	WMIC.exe
Token: SeRemoteShutdownPrivilege	3044	WMIC.exe
Token: SeUndockPrivilege	3044	WMIC.exe
Token: SeManageVolumePrivilege	3044	WMIC.exe
Token: 33	3044	WMIC.exe
Token: 34	3044	WMIC.exe
Token: 35	3044	WMIC.exe
Token: SeDebugPrivilege	2392	encrypter_windows_x64.exe
Token: SeIncreaseQuotaPrivilege	3044	WMIC.exe
Token: SeSecurityPrivilege	3044	WMIC.exe
Token: SeTakeOwnershipPrivilege	3044	WMIC.exe
Token: SeLoadDriverPrivilege	3044	WMIC.exe
Token: SeSystemProfilePrivilege	3044	WMIC.exe
Token: SeSystemtimePrivilege	3044	WMIC.exe
Token: SeProfSingleProcessPrivilege	3044	WMIC.exe
Token: SeIncBasePriorityPrivilege	3044	WMIC.exe
Token: SeCreatePagefilePrivilege	3044	WMIC.exe
Token: SeBackupPrivilege	3044	WMIC.exe
Token: SeRestorePrivilege	3044	WMIC.exe
Token: SeShutdownPrivilege	3044	WMIC.exe
Token: SeDebugPrivilege	3044	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3044	WMIC.exe
Token: SeRemoteShutdownPrivilege	3044	WMIC.exe
Token: SeUndockPrivilege	3044	WMIC.exe
Token: SeManageVolumePrivilege	3044	WMIC.exe
Token: 33	3044	WMIC.exe
Token: 34	3044	WMIC.exe
Token: 35	3044	WMIC.exe
Token: SeBackupPrivilege	2408	vssvc.exe
Token: SeRestorePrivilege	2408	vssvc.exe
Token: SeAuditPrivilege	2408	vssvc.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

encrypter_windows_x64.exe

description	pid	process	target process
PID 2392 wrote to memory of 3008	2392	encrypter_windows_x64.exe	vssadmin.exe
PID 2392 wrote to memory of 3008	2392	encrypter_windows_x64.exe	vssadmin.exe
PID 2392 wrote to memory of 3008	2392	encrypter_windows_x64.exe	vssadmin.exe
PID 2392 wrote to memory of 3044	2392	encrypter_windows_x64.exe	WMIC.exe
PID 2392 wrote to memory of 3044	2392	encrypter_windows_x64.exe	WMIC.exe
PID 2392 wrote to memory of 3044	2392	encrypter_windows_x64.exe	WMIC.exe
PID 2392 wrote to memory of 1208	2392	encrypter_windows_x64.exe	wbadmin.exe
PID 2392 wrote to memory of 1208	2392	encrypter_windows_x64.exe	wbadmin.exe
PID 2392 wrote to memory of 1208	2392	encrypter_windows_x64.exe	wbadmin.exe
PID 2392 wrote to memory of 2072	2392	encrypter_windows_x64.exe	wbadmin.exe
PID 2392 wrote to memory of 2072	2392	encrypter_windows_x64.exe	wbadmin.exe
PID 2392 wrote to memory of 2072	2392	encrypter_windows_x64.exe	wbadmin.exe
PID 2392 wrote to memory of 2584	2392	encrypter_windows_x64.exe	bcdedit.exe
PID 2392 wrote to memory of 2584	2392	encrypter_windows_x64.exe	bcdedit.exe
PID 2392 wrote to memory of 2584	2392	encrypter_windows_x64.exe	bcdedit.exe
PID 2392 wrote to memory of 2644	2392	encrypter_windows_x64.exe	bcdedit.exe
PID 2392 wrote to memory of 2644	2392	encrypter_windows_x64.exe	bcdedit.exe
PID 2392 wrote to memory of 2644	2392	encrypter_windows_x64.exe	bcdedit.exe
PID 2392 wrote to memory of 2588	2392	encrypter_windows_x64.exe	wbadmin.exe
PID 2392 wrote to memory of 2588	2392	encrypter_windows_x64.exe	wbadmin.exe
PID 2392 wrote to memory of 2588	2392	encrypter_windows_x64.exe	wbadmin.exe
PID 2392 wrote to memory of 1564	2392	encrypter_windows_x64.exe	notepad.exe
PID 2392 wrote to memory of 1564	2392	encrypter_windows_x64.exe	notepad.exe
PID 2392 wrote to memory of 1564	2392	encrypter_windows_x64.exe	notepad.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\encrypter_windows_x64.exe
C:\Users\Admin\AppData\Local\Temp\encrypter_windows_x64.exe -c 8SyoDWeuGW:K8w8YXPFpgc3mvtMzWJuNHSrxUYtEdSx
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2392

C:\Windows\System32\vssadmin.exe
"C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
2⤵
- Interacts with shadow copies
PID:3008

C:\Windows\System32\wbem\WMIC.exe
"C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3044

C:\Windows\System32\wbadmin.exe
"C:\Windows\System32\wbadmin.exe" delete systemstatebackup
2⤵
- Deletes System State backups
PID:1208

C:\Windows\System32\wbadmin.exe
"C:\Windows\System32\wbadmin.exe" delete catalog-quiet
2⤵
- Drops file in Windows directory
PID:2072

C:\Windows\System32\bcdedit.exe
"C:\Windows\System32\bcdedit.exe" /set {default} recoveryenabled No
2⤵
- Modifies boot configuration data using bcdedit
PID:2584

C:\Windows\System32\bcdedit.exe
"C:\Windows\System32\bcdedit.exe" /set {default} bootstatuspolicy ignoreallfailures
2⤵
- Modifies boot configuration data using bcdedit
PID:2644

C:\Windows\System32\wbadmin.exe
"C:\Windows\System32\wbadmin.exe" delete systemstatebackup -keepVersions:3
2⤵
- Deletes System State backups
PID:2588

C:\Windows\System32\notepad.exe
"C:\Windows\System32\notepad.exe" \\?\F:\Contact Us.txt
2⤵
PID:1564

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

3

T1070

File Deletion

3

T1070.004

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

4

T1490

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Downloads

C:\Recovery\d6b272a2-8f1b-11ee-9e28-7ed9061e9c39\Contact Us.txt

Filesize
1KB

MD5
6d3b30acbb8d185b53da65d53492bb2c

SHA1
6584bcd8f7c4c9d378fbb6eb0ad9dbd456d8e81b

SHA256
7d42476f42be746d26b1aabf4a399cba0921ee025a79c1d0d048731c3bf2c26c

SHA512
d6e89800a935031ba71675d312568947900e825597e0590d91b4df7697cf05589422bc6e7d4612a0ed2d62e3df5b43f38e67f31681466224fe2cfe3f2c9811fd

Download Submit
memory/2392-842-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2392-843-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2392-844-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2392-845-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2392-846-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2392-850-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2392-851-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2392-852-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2392-855-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2392-856-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download
memory/2392-859-0x0000000000400000-0x00000000004A8000-memory.dmp

Filesize
672KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads